{"product_id":"dtnb-ellman-s-reagent-cas-69-78-3","title":"DTNB (Ellman's Reagent) | CAS 69-78-3 | ≥98%","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;\"\u003e69-78-3\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;\"\u003e200-714-4\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;\"\u003eMFCD00007140\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;\"\u003eDG9650000\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;\"\u003eC1=CC(=C(C=C1SSC2=CC(=C(C=C2)[N+](=O)[O-])C(=O)O)C(=O)O)[N+](=O)[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\/C14H8N2O8S2\/c17-13(18)9-5-7(1-3-11(9)15(21)22)25-26-8-2-4-12(16(23)24)10(6-8)14(19)20\/h1-6H,(H,17,18)(H,19,20)\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;\"\u003eKIUMMUBSPKGMOY-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;\"\u003e6254\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;\"\u003eC₁₄H₈N₂O₈S₂\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;\"\u003e396.4 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;\"\u003e240–245 °C (dec.)\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 (10 mg\/mL) and in 0.1 M phosphate buffer, pH 7.2 (about 5 mM); dissolves in water after addition of a small amount of dilute NaOH.\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≥98%\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;\"\u003eYellow solid powder\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;\"\u003e2930.90\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 tightly closed and refrigerated at 2–8 °C. Prevent exposure to light and moisture.\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\u003eDTNB\u003c\/strong\u003e (Ellman's reagent; 5,5′-dithiobis(2-nitrobenzoic acid)) is an aromatic disulfide for the determination of sulfhydryl groups. It was first described in 1959 and tested on blood, urine, a purified protein and tissue extracts. DTNB reacts with the thiolate form of a free thiol to give a mixed disulfide and releases the 2-nitro-5-thiobenzoate anion (TNB²⁻), which is intensely yellow and is measured at 412 nm in aqueous buffer at pH 7–8. The rate of the reaction depends on the pH, on the pKa of the thiol and on steric and electrostatic effects.\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=\"300px\" height=\"170px\" viewbox=\"0 0 300 170\"\u003e\u003cpath d=\"M 56.2,59.2 L 56.2,79.6\"\u003e\u003c\/path\u003e\u003cpath d=\"M 52.5,59.2 L 52.5,79.6\"\u003e\u003c\/path\u003e\u003cpath d=\"M 54.4,78.6 L 37.8,88.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 54.4,78.6 L 75.7,90.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 75.7,90.8 L 97.0,78.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 97.0,78.5 L 118.3,90.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 97.0,82.8 L 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64.5,103.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 43.9,86.8 L 64.5,98.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 64.5,103.7 L 89.4,89.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M 89.4,89.3 L 110.1,101.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M 124.5,100.3 L 135.4,94.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 122.3,96.6 L 133.3,90.3\"\u003e\u003c\/path\u003e\u003cpath d=\"M 114.3,108.9 L 114.3,127.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 89.4,89.3 L 89.4,60.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 85.1,86.8 L 85.1,63.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 115.3,46.7 L 114.3,46.2 L 113.1,46.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 65.7,46.8 L 64.5,46.1 L 63.3,46.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 39.6,87.8 L 39.6,89.3 L 40.8,90.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 63.2,102.9 L 64.5,103.7 L 65.7,102.9\"\u003e\u003c\/path\u003e\u003cg style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003e\u003ctext x=\"141.2\" y=\"64.8\" text-anchor=\"middle\"\u003eO⁻\u003c\/text\u003e\u003ctext x=\"114.4\" y=\"21.6\" text-anchor=\"middle\"\u003eO\u003c\/text\u003e\u003ctext x=\"16.7\" y=\"50.3\" text-anchor=\"middle\"\u003eS⁻\u003c\/text\u003e\u003ctext x=\"116.3\" y=\"107.9\" text-anchor=\"middle\"\u003eN⁺\u003c\/text\u003e\u003ctext x=\"139.2\" y=\"93.5\" text-anchor=\"middle\"\u003eO\u003c\/text\u003e\u003ctext x=\"116.3\" y=\"136.7\" text-anchor=\"middle\"\u003eO⁻\u003c\/text\u003e\u003c\/g\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 of DTNB (left) with a thiol R–SH: the mixed disulfide (centre) forms and one TNB²⁻ anion (right), the yellow product measured at 412 nm, is released per thiol.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eMeasuring free thiols.\u003c\/strong\u003e DTNB is used to measure the free sulfhydryl content of proteins, peptides and tissues, and to label cysteine residues. The thiol content is calculated from the absorbance at 412 nm, either with the molar absorption coefficient of TNB²⁻ or against a cysteine standard curve. In 0.1 M sodium phosphate, pH 8.0, with 1 mM EDTA, the coefficient is 14,150 M⁻¹ cm⁻¹, and it does not change between pH 7.6 and 8.6. Denaturants and detergents such as urea, guanidine hydrochloride and SDS change the coefficient, so the value for the assay solvent is used. EDTA in the buffer chelates divalent metal ions, which can oxidise thiols, and a sample that reads low because its thiols are oxidised is first treated with a reducing agent.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAcetylcholinesterase activity.\u003c\/strong\u003e In the acetylcholinesterase assay, the enzyme hydrolyses acetylthiocholine to thiocholine and acetate, and thiocholine reacts with DTNB to give the yellow anion. The increase in colour gives the enzyme activity. The method was developed for tissue extracts, homogenates and cell suspensions, including human erythrocytes, and results with acetylthiocholine resemble those obtained with acetylcholine.\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=\"200px\" height=\"110px\" viewbox=\"0 0 200 110\"\u003e\u003cpath d=\"M 12.0,80.0 L 41.3,63.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 43.9,64.5 L 43.8,34.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 38.8,64.5 L 38.8,34.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 41.3,63.0 L 66.8,77.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 74.5,77.7 L 100.0,63.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 100.0,63.0 L 129.3,79.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 129.3,79.9 L 154.3,65.4\"\u003e\u003c\/path\u003e\u003cpath d=\"M 155.5,57.5 L 141.7,33.6\"\u003e\u003c\/path\u003e\u003cpath d=\"M 161.7,57.5 L 175.6,33.6\"\u003e\u003c\/path\u003e\u003cpath d=\"M 163.0,65.4 L 188.0,79.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 39.9,63.8 L 41.3,63.0 L 42.6,63.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 98.7,63.7 L 100.0,63.0 L 101.5,63.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 127.9,79.0 L 129.3,79.9 L 130.6,79.1\"\u003e\u003c\/path\u003e\u003cg style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003e\u003ctext x=\"41.3\" y=\"33.3\" text-anchor=\"middle\"\u003eO\u003c\/text\u003e\u003ctext x=\"70.7\" y=\"84.1\" text-anchor=\"middle\"\u003eS\u003c\/text\u003e\u003ctext x=\"160.7\" y=\"67.1\" text-anchor=\"middle\"\u003eN⁺\u003c\/text\u003e\u003c\/g\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\u003eacetylcholinesterase\u003c\/div\u003e\n\u003cdiv style=\"font-size:30px;line-height:1;\"\u003e⟶\u003c\/div\u003e\n\u003cdiv\u003eH₂O, − acetate\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=\"160px\" height=\"110px\" viewbox=\"0 0 160 110\"\u003e\u003cpath d=\"M 28.6,74.0 L 54.9,58.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 54.9,58.8 L 85.1,76.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 85.1,76.2 L 110.9,61.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 112.2,53.3 L 97.8,28.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 118.4,53.3 L 132.7,28.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 119.7,61.2 L 145.5,76.1\"\u003e\u003c\/path\u003e\u003cpath d=\"M 53.6,59.5 L 54.9,58.8 L 56.4,59.6\"\u003e\u003c\/path\u003e\u003cpath d=\"M 83.6,75.3 L 85.1,76.2 L 86.4,75.4\"\u003e\u003c\/path\u003e\u003cg style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003e\u003ctext x=\"28.3\" y=\"80.4\" text-anchor=\"end\"\u003eHS\u003c\/text\u003e\u003ctext x=\"117.3\" y=\"62.9\" text-anchor=\"middle\"\u003eN⁺\u003c\/text\u003e\u003c\/g\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:12px;margin:4px 0 0 0;\"\u003e\u003cem\u003eHydrolysis of acetylthiocholine (left) by acetylcholinesterase gives thiocholine (right), which then reacts with DTNB as shown above.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eGlutathione.\u003c\/strong\u003e In the enzymatic recycling assay for glutathione, DTNB oxidises reduced glutathione (GSH) and releases TNB, which is measured at 412 nm. Glutathione reductase with NADPH reduces the glutathione disulfide (GSSG) that forms back to GSH, so the cycle continues. The method determines both GSH and GSSG and is run in a 96-well plate format.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLight and pH sensitivity.\u003c\/strong\u003e DTNB is sensitive to light. Daylight, especially ultraviolet light near 325 nm, destroys the reagent during the assay, while light at the absorbance maximum of the yellow product has no effect. Window glass does not block the harmful wavelength, so the reaction is run under artificial room light with daylight excluded. In aqueous buffer the reagent is stable near pH 7, but its decomposition increases with pH and is fast in strong base. Phosphate-buffer stock solutions kept dark at 0–5 °C last more than two months.\u003c\/p\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":"1.0 g","offer_id":55166959190353,"sku":"NOR-69783-1g","price":74.9,"currency_code":"EUR","in_stock":true},{"title":"5.0 g","offer_id":55166959223121,"sku":"NOR-69783-5g","price":89.2,"currency_code":"EUR","in_stock":true},{"title":"10 g","offer_id":55166959255889,"sku":"NOR-69783-10g","price":129.2,"currency_code":"EUR","in_stock":true},{"title":"25 g","offer_id":55166959288657,"sku":"NOR-69783-25g","price":229.2,"currency_code":"EUR","in_stock":true},{"title":"50 g","offer_id":55361977516369,"sku":"NOR-69783-50g","price":398.2,"currency_code":"EUR","in_stock":true},{"title":"100 g","offer_id":55166959321425,"sku":"NOR-69783-100g","price":675.0,"currency_code":"EUR","in_stock":true},{"title":"250 g","offer_id":55361977549137,"sku":"NOR-69783-250g","price":1595.0,"currency_code":"EUR","in_stock":false},{"title":"500 g","offer_id":55361977581905,"sku":"NOR-69783-500g","price":2745.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/6357\/1793\/files\/DTNB.png?v=1792259369","url":"https:\/\/www.norrchemica.com\/products\/dtnb-ellman-s-reagent-cas-69-78-3","provider":"NorrChemica","version":"1.0","type":"link"}