{"product_id":"4-dimethylamino-benzaldehyde-cas-100-10-7","title":"4-(Dimethylamino)benzaldehyde | CAS 100-10-7 | ≥97%","description":"\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003cdiv style=\"background: #002147; padding: 10px 20px; margin-bottom: 0;\"\u003e\u003ch3 style=\"margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 0.70em; font-weight: bold; letter-spacing: 0.12em; text-transform: uppercase; color: #fff;\"\u003eTechnical Specifications\u003c\/h3\u003e\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.95em; border: 1px solid #e4e8f0; border-top: none; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0;\"\u003e100-10-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eEC \/ EINECS Number\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0;\"\u003e202-819-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eMDL Number\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0;\"\u003eMFCD00003381\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eRTECS Number\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0;\"\u003eCU5775000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eSMILES\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0; word-break: break-all;\"\u003eCN(C)C1=CC=C(C=C1)C=O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eInChI\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0; word-break: break-all;\"\u003eInChI=1S\/C9H11NO\/c1-10(2)9-5-3-8(7-11)4-6-9\/h3-7H,1-2H3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eInChIKey\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0; word-break: break-all;\"\u003eBGNGWHSBYQYVRX-UHFFFAOYSA-N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003ePubChem CID\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0;\"\u003e7479\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0;\"\u003eC₉H₁₁NO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0;\"\u003e149.19 g\/mol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eMelting Point\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0;\"\u003e72–75 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eSolubility\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0;\"\u003eSoluble in ethanol, diethyl ether, chloroform and acetic acid; slightly soluble in water.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003ePurity\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0;\"\u003e≥97%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003ePhysical Form\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0;\"\u003eWhite to light yellow to green powder or crystals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eHS Code\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0;\"\u003e2922.39\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; border-bottom: 1px solid #e4e8f0; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eShelf Life\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333; border-bottom: 1px solid #e4e8f0;\"\u003eRetest period: 36 months from date of manufacture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 16px; font-weight: 600; color: #002147; width: 200px; background: #f7f8fb; font-size: 0.95em; vertical-align: top;\"\u003eStorage Conditions\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 16px; color: #333;\"\u003eStore in a cool, dry place in a tightly sealed container, protected from light.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003cdiv style=\"background: #002147; padding: 10px 20px; margin-bottom: 0;\"\u003e\u003ch3 style=\"margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 0.70em; font-weight: bold; letter-spacing: 0.12em; text-transform: uppercase; color: #fff;\"\u003eProduct Description \u0026amp; Scientific Applications\u003c\/h3\u003e\u003c\/div\u003e\n\u003cdiv style=\"padding: 16px 20px; border: 1px solid #e4e8f0; border-top: none; font-family: Georgia, 'Times New Roman', serif; font-size: 0.95em; line-height: 1.65; color: #333;\"\u003e\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003e4-(Dimethylamino)benzaldehyde\u003c\/strong\u003e (p-dimethylaminobenzaldehyde, DMAB) is the active component of the Ehrlich reagent. In this reagent DMAB is dissolved in ethanol with hydrochloric acid, which catalyses its condensation on the indole ring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReaction with indoles.\u003c\/strong\u003e With indole, the reaction takes place at the 3-position. Two indole molecules bind to one aldehyde molecule to form a bis(indolyl)methane, as shown by a crystal structure. With indoles substituted at the 3-position, the reaction is more likely to take place at the 2-position. The reaction needs strongly acidic conditions and the presence of an alcohol. The identity of the coloured product is still unclear.\u003c\/p\u003e\n\u003cdiv style=\"margin:8px 0 18px 0;\"\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-start;gap:2px;\"\u003e\n\u003cdiv style=\"display:flex;align-items:center;\"\u003e\u003cdiv style=\"font:14px sans-serif;padding:0 2px 0 4px;\"\u003e2\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;\"\u003e\u003csvg role=\"img\" style=\"max-width:100%;height:auto;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" stroke=\"#000\" stroke-width=\"1.6\" width=\"73px\" height=\"56px\" viewbox=\"0 0 73 56\"\u003e\u003cpath d=\"M 68.0,42.7 L 67.9,23.4\"\u003e\u003c\/path\u003e\u003cpath d=\"M 65.1,41.1 L 65.1,25.1\"\u003e\u003c\/path\u003e\u003cpath d=\"M 67.9,23.4 L 51.2,13.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 51.2,13.8 L 34.5,23.4\"\u003e\u003c\/path\u003e\u003cpath d=\"M 51.2,17.1 L 37.4,25.1\"\u003e\u003c\/path\u003e\u003cpath d=\"M 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133.6,81.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 118.5,73.1 L 117.6,72.7 L 116.8,73.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 100.9,100.8 L 100.9,101.8 L 101.7,102.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M 116.9,111.0 L 117.7,111.5 L 118.5,111.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 65.3,100.8 L 65.2,101.8 L 64.5,101.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 18.5,85.3 L 17.6,85.1 L 17.3,84.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 11.8,67.6 L 11.5,66.6 L 12.2,65.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 23.8,52.9 L 24.5,52.2 L 25.4,52.4\"\u003e\u003c\/path\u003e\u003cpath d=\"M 42.5,56.0 L 43.5,56.2 L 43.8,57.1\"\u003e\u003c\/path\u003e\u003cpath d=\"M 69.0,42.5 L 68.2,42.0 L 68.4,41.4\"\u003e\u003c\/path\u003e\u003cpath d=\"M 105.9,9.7 L 106.5,9.0 L 107.5,9.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 124.6,12.8 L 125.5,13.0 L 125.8,13.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 131.3,30.5 L 131.6,31.4 L 130.9,32.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 119.3,45.2 L 118.6,45.9 L 117.7,45.7\"\u003e\u003c\/path\u003e\u003ctext x=\"147.7\" y=\"117.4\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eN\u003c\/text\u003e\u003ctext x=\"34.4\" y=\"111.9\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eH\u003c\/text\u003e\u003ctext x=\"42.7\" y=\"111.9\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eN\u003c\/text\u003e\u003ctext x=\"62.3\" y=\"29.5\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eH\u003c\/text\u003e\u003ctext x=\"70.6\" y=\"29.5\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eN\u003c\/text\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:12px;margin:4px 0 0 0;\"\u003e\u003cem\u003eReaction with indole: two indole molecules bind at the 3-position to one aldehyde, giving a bis(indol-3-yl)methane. The coloured species formed in the test is not drawn.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eOther analytes.\u003c\/strong\u003e The Ehrlich reagent also detects pyrroles, porphobilinogen and hydrazine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIndole test for bacteria.\u003c\/strong\u003e Kovács' reagent contains DMAB together with isoamyl alcohol and concentrated hydrochloric acid. The reagent is used to test whether bacteria break down tryptophan to indole with the enzyme tryptophanase. After the reagent is added, a red colour in the surface layer shows a positive result and a yellow colour a negative result.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHydrazine determination.\u003c\/strong\u003e Hydrazine reacts with DMAB to form an azine. Strong acids convert the azine into a quinoid form with an intense orange-red colour. This reaction has been used in a spectrophotometric method for the determination of hydrazine in environmental water.\u003c\/p\u003e\n\u003cdiv style=\"margin:8px 0 18px 0;\"\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-start;gap:2px;\"\u003e\n\u003cdiv style=\"display:flex;align-items:center;\"\u003e\u003cdiv style=\"font:13px sans-serif;padding:0 2px 0 0;margin-left:-2px;\"\u003eH₂N–NH₂\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;\"\u003e\u003cdiv style=\"font-size:20px;padding:0 4px;align-self:center;\"\u003e+\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;\"\u003e\u003cdiv style=\"font:14px sans-serif;padding:0 2px 0 4px;\"\u003e2\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;\"\u003e\u003csvg role=\"img\" style=\"max-width:100%;height:auto;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" stroke=\"#000\" stroke-width=\"1.6\" width=\"99px\" height=\"93px\" viewbox=\"0 0 99 93\"\u003e\u003cpath d=\"M 6.4,57.5 L 18.9,64.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 23.2,73.9 L 23.2,86.6\"\u003e\u003c\/path\u003e\u003cpath d=\"M 27.4,64.8 L 40.0,57.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 40.0,57.5 L 40.0,38.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 40.0,38.2 L 56.8,28.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 42.9,39.9 L 56.8,31.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 56.8,28.5 L 73.5,38.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 73.5,38.2 L 90.3,28.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 90.3,28.5 L 90.3,15.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 87.4,26.9 L 87.4,15.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 73.5,38.2 L 73.5,57.6\"\u003e\u003c\/path\u003e\u003cpath d=\"M 70.6,39.9 L 70.6,55.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 73.5,57.6 L 56.7,67.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 56.7,67.2 L 40.0,57.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 56.7,63.9 L 42.9,55.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 40.0,39.2 L 40.0,38.2 L 40.8,37.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 55.9,29.0 L 56.8,28.5 L 57.6,29.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 89.5,29.0 L 90.3,28.5 L 90.3,27.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 73.5,56.6 L 73.5,57.6 L 72.7,58.1\"\u003e\u003c\/path\u003e\u003cpath d=\"M 57.6,66.8 L 56.7,67.2 L 55.9,66.8\"\u003e\u003c\/path\u003e\u003ctext x=\"19.6\" y=\"73.2\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eN\u003c\/text\u003e\u003ctext x=\"85.3\" y=\"15.2\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eO\u003c\/text\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;\"\u003e\u003cdiv style=\"display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:90px;max-width:150px;padding:0 4px;text-align:center;font-size:12px;line-height:1.3;\"\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-size:30px;line-height:1;\"\u003e⟶\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;\"\u003e\u003csvg role=\"img\" style=\"max-width:100%;height:auto;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" stroke=\"#000\" stroke-width=\"1.6\" width=\"256px\" height=\"57px\" viewbox=\"0 0 256 57\"\u003e\u003cpath d=\"M 22.7,10.2 L 27.9,24.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 25.2,33.5 L 17.0,43.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M 33.7,29.2 L 48.5,31.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 48.5,31.7 L 61.0,16.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 61.0,16.8 L 80.1,20.1\"\u003e\u003c\/path\u003e\u003cpath d=\"M 62.1,20.0 L 77.9,22.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 80.1,20.1 L 86.8,38.4\"\u003e\u003c\/path\u003e\u003cpath d=\"M 86.8,38.4 L 105.9,41.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 105.9,41.7 L 114.1,31.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 104.7,38.5 L 111.8,30.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 122.5,27.5 L 133.2,29.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M 141.0,25.8 L 149.8,15.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 138.7,24.0 L 147.6,13.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M 149.8,15.2 L 169.0,18.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 169.0,18.5 L 181.4,3.6\"\u003e\u003c\/path\u003e\u003cpath d=\"M 181.4,3.6 L 200.5,6.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 182.5,6.7 L 198.3,9.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 200.5,6.9 L 207.2,25.1\"\u003e\u003c\/path\u003e\u003cpath d=\"M 207.2,25.1 L 222.1,27.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 229.8,24.2 L 238.7,13.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 228.7,35.1 L 233.0,46.6\"\u003e\u003c\/path\u003e\u003cpath d=\"M 207.2,25.1 L 194.8,40.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 203.9,24.5 L 193.6,36.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 194.8,40.0 L 175.6,36.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 86.8,38.4 L 74.3,53.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M 83.5,37.8 L 73.2,50.1\"\u003e\u003c\/path\u003e\u003cpath d=\"M 74.3,53.3 L 55.2,49.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 55.2,49.9 L 48.5,31.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 57.4,47.4 L 51.8,32.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M 175.6,36.7 L 169.0,18.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 177.8,34.1 L 172.3,19.1\"\u003e\u003c\/path\u003e\u003cpath d=\"M 60.3,17.6 L 61.0,16.8 L 61.9,17.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 79.1,20.0 L 80.1,20.1 L 80.4,21.1\"\u003e\u003c\/path\u003e\u003cpath d=\"M 104.9,41.5 L 105.9,41.7 L 106.3,41.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 149.4,15.7 L 149.8,15.2 L 150.8,15.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M 180.8,4.3 L 181.4,3.6 L 182.3,3.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 199.5,6.7 L 200.5,6.9 L 200.8,7.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 195.4,39.3 L 194.8,40.0 L 193.8,39.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 176.6,36.9 L 175.6,36.7 L 175.3,35.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 75.0,52.5 L 74.3,53.3 L 73.4,53.1\"\u003e\u003c\/path\u003e\u003cpath d=\"M 56.2,50.1 L 55.2,49.9 L 54.9,49.0\"\u003e\u003c\/path\u003e\u003ctext x=\"25.8\" y=\"34.4\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eN\u003c\/text\u003e\u003ctext x=\"114.7\" y=\"32.8\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eN\u003c\/text\u003e\u003ctext x=\"133.8\" y=\"36.1\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eN\u003c\/text\u003e\u003ctext x=\"222.7\" y=\"34.4\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eN\u003c\/text\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:12px;margin:4px 0 0 0;\"\u003e\u003cem\u003eGeneral reaction: hydrazine + 2 4-(dimethylamino)benzaldehyde → azine. Strong acids convert the azine into the orange-red quinoid form (not drawn).\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSchiff bases.\u003c\/strong\u003e DMAB condenses with primary amines to give coloured Schiff bases, and it also gives coloured products with pyrroles.\u003c\/p\u003e\n\u003cdiv style=\"margin:8px 0 18px 0;\"\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-start;gap:2px;\"\u003e\n\u003cdiv style=\"display:flex;align-items:center;\"\u003e\u003csvg role=\"img\" style=\"max-width:100%;height:auto;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" stroke=\"#000\" stroke-width=\"1.6\" width=\"45px\" height=\"16px\" viewbox=\"0 0 45 16\"\u003e\u003cpath d=\"M 10.5,4.4 L 20.9,4.4\"\u003e\u003c\/path\u003e\u003ctext x=\"2.7\" y=\"10.4\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eR\u003c\/text\u003e\u003ctext x=\"21.5\" y=\"10.4\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eN\u003c\/text\u003e\u003ctext x=\"29.8\" y=\"10.4\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eH\u003c\/text\u003e\u003ctext x=\"38.1\" y=\"15.2\" style=\"font:7px sans-serif;fill:#000;stroke:none\"\u003e2\u003c\/text\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;\"\u003e\u003cdiv style=\"font-size:20px;padding:0 4px;align-self:center;\"\u003e+\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;\"\u003e\u003csvg role=\"img\" style=\"max-width:100%;height:auto;\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" stroke=\"#000\" stroke-width=\"1.6\" width=\"99px\" height=\"93px\" viewbox=\"0 0 99 93\"\u003e\u003cpath d=\"M 6.4,57.5 L 18.9,64.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 23.2,73.9 L 23.2,86.6\"\u003e\u003c\/path\u003e\u003cpath d=\"M 27.4,64.8 L 40.0,57.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 40.0,57.5 L 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0;\"\u003e\u003cem\u003eGeneral reaction: R–NH₂ (primary amine) + 4-(dimethylamino)benzaldehyde → Schiff base (imine).\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSulfonamide determination.\u003c\/strong\u003e Sulfonamides have been determined spectrophotometrically through their condensation with an excess of DMAB in aqueous solution, in the presence of hydrochloric acid and the surfactant sodium dodecyl sulfate (SDS). The reaction has also been used to determine sulfonamide residues in milk.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHemicyanine dyes.\u003c\/strong\u003e Condensation of a quaternised 2-methylbenzothiazole with DMAB has been used as a route to unsymmetrical hemicyanine dyes. 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42.9,55.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 40.0,39.2 L 40.0,38.2 L 40.8,37.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 55.9,29.0 L 56.8,28.5 L 57.6,29.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 89.5,29.0 L 90.3,28.5 L 90.3,27.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 73.5,56.6 L 73.5,57.6 L 72.7,58.1\"\u003e\u003c\/path\u003e\u003cpath d=\"M 57.6,66.8 L 56.7,67.2 L 55.9,66.8\"\u003e\u003c\/path\u003e\u003ctext x=\"19.6\" y=\"73.2\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eN\u003c\/text\u003e\u003ctext x=\"85.3\" y=\"15.2\" style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003eO\u003c\/text\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;\"\u003e\u003cdiv style=\"display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:90px;max-width:150px;padding:0 4px;text-align:center;font-size:12px;line-height:1.3;\"\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-size:30px;line-height:1;\"\u003e⟶\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;\"\u003e\u003cdiv style=\"font:13px sans-serif;padding:0 2px 0 0;margin-left:-2px;\"\u003ehemicyanine dye\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:12px;margin:4px 0 0 0;\"\u003e\u003cem\u003eCondensation of a quaternised 2-methylbenzothiazolium salt with 4-(dimethylamino)benzaldehyde gives a hemicyanine dye (structure not drawn); R = N-substituent, X⁻ = counter-ion.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003cdiv style=\"background: #002147; padding: 10px 20px; margin-bottom: 0;\"\u003e\u003ch3 style=\"margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 0.70em; font-weight: bold; letter-spacing: 0.12em; text-transform: uppercase; color: #fff;\"\u003eShipping Destinations\u003c\/h3\u003e\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e4e8f0; border-top: none; padding: 12px 16px; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 0.95em;\"\u003e\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"padding: 5px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cspan style=\"display: inline-block; width: 7px; height: 7px; background: #002147; border-radius: 50%; margin-right: 10px; vertical-align: middle;\"\u003e\u003c\/span\u003eEU \u0026amp; UK: Priority delivery, 2–5 business days.\u003c\/li\u003e\n\u003cli style=\"padding: 5px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cspan style=\"display: inline-block; width: 7px; height: 7px; background: #002147; border-radius: 50%; margin-right: 10px; vertical-align: middle;\"\u003e\u003c\/span\u003eUnited States (DDP): 3–7 business days, duties and taxes prepaid.\u003c\/li\u003e\n\u003cli style=\"padding: 5px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cspan style=\"display: inline-block; width: 7px; height: 7px; background: #002147; border-radius: 50%; margin-right: 10px; vertical-align: middle;\"\u003e\u003c\/span\u003eEFTA Countries (DDP): 3–7 business days, duties and taxes prepaid.\u003c\/li\u003e\n\u003cli style=\"padding: 5px 0; border-bottom: 1px solid #f0f0f0;\"\u003e\n\u003cspan style=\"display: inline-block; width: 7px; height: 7px; background: #002147; border-radius: 50%; margin-right: 10px; vertical-align: middle;\"\u003e\u003c\/span\u003eWorldwide: 7–14 business days, selected locations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"NorrChemica™","offers":[{"title":"50 g","offer_id":55062636986705,"sku":"NOR-100107-50g","price":39.9,"currency_code":"EUR","in_stock":true},{"title":"100 g","offer_id":55062637019473,"sku":"NOR-100107-100g","price":49.2,"currency_code":"EUR","in_stock":true},{"title":"250 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