{"product_id":"18-crown-6-cas-17455-13-9","title":"18-Crown-6 | CAS 17455-13-9 | ≥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;\"\u003e17455-13-9\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;\"\u003e241-473-5\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;\"\u003eMFCD00005113\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;\"\u003eMP4500000\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;\"\u003eC1COCCOCCOCCOCCOCCO1\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\/C12H24O6\/c1-2-14-5-6-16-9-10-18-12-11-17-8-7-15-4-3-13-1\/h1-12H2\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;\"\u003eXEZNGIUYQVAUSS-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;\"\u003e28557\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;\"\u003eC₁₂H₂₄O₆\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;\"\u003e264.31 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;\"\u003e36–40 °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 water, methanol, chloroform, benzene and hydrocarbons.\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;\"\u003eWhite 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;\"\u003e2932.99\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. Protect from 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\u003e18-Crown-6\u003c\/strong\u003e (1,4,7,10,13,16-hexaoxacyclooctadecane) is a macrocyclic polyether with six oxygen atoms in an 18-membered ring. The size of its cavity suits the potassium, ammonium and rubidium cations, and it binds the potassium cation with particular affinity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePotassium salts in organic solvents.\u003c\/strong\u003e 18-Crown-6 binds the potassium cation inside its ring, so it dissolves potassium salts in nonpolar and dipolar aprotic solvents in which they are otherwise insoluble. The anion of the dissolved salt is only weakly paired with the complexed cation, so it reacts as a “naked” anion. In this way the 18-crown-6 complexes of potassium fluoride, potassium cyanide and potassium acetate act as stronger nucleophiles in aprotic solvents, and substitution reactions with organic substrates are accelerated.\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=\"170px\" height=\"170px\" viewbox=\"0 0 170 170\"\u003e\u003cpath d=\"M 159.2,98.8 L 159.1,70.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 159.1,70.2 L 139.1,58.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 134.2,50.7 L 134.2,27.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 134.2,27.2 L 109.3,13.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 109.3,13.0 L 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style=\"font-size:30px;line-height:1;\"\u003e⟶\u003c\/div\u003e\n\u003cdiv\u003esolvent\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=\"170px\" height=\"170px\" viewbox=\"0 0 170 170\"\u003e\u003cpath d=\"M 159.2,98.8 L 159.1,70.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 159.1,70.2 L 139.1,58.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 134.2,50.7 L 134.2,27.2\"\u003e\u003c\/path\u003e\u003cpath d=\"M 134.2,27.2 L 109.3,13.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 109.3,13.0 L 89.4,24.6\"\u003e\u003c\/path\u003e\u003cpath d=\"M 79.7,24.6 L 59.7,13.1\"\u003e\u003c\/path\u003e\u003cpath d=\"M 59.7,13.1 L 34.9,27.5\"\u003e\u003c\/path\u003e\u003cpath d=\"M 34.9,27.5 L 35.0,50.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 30.1,59.0 L 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58.4,13.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 36.1,26.8 L 34.9,27.5 L 34.9,28.7\"\u003e\u003c\/path\u003e\u003cpath d=\"M 11.2,70.0 L 10.2,70.6 L 10.2,72.0\"\u003e\u003c\/path\u003e\u003cpath d=\"M 10.3,97.8 L 10.3,99.2 L 11.3,99.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 35.2,141.0 L 35.2,142.2 L 36.5,142.9\"\u003e\u003c\/path\u003e\u003cpath d=\"M 58.8,155.7 L 60.1,156.4 L 61.1,155.8\"\u003e\u003c\/path\u003e\u003cpath d=\"M 108.7,155.7 L 109.7,156.3 L 111.0,155.6\"\u003e\u003c\/path\u003e\u003cpath d=\"M 133.3,142.6 L 134.5,141.9 L 134.5,140.7\"\u003e\u003c\/path\u003e\u003cg style=\"font:12px sans-serif;fill:#000;stroke:none\"\u003e\u003ctext x=\"134.3\" y=\"60.1\" text-anchor=\"middle\"\u003eO\u003c\/text\u003e\u003ctext x=\"84.5\" y=\"31.6\" text-anchor=\"middle\"\u003eO\u003c\/text\u003e\u003ctext x=\"35.0\" y=\"60.4\" text-anchor=\"middle\"\u003eO\u003c\/text\u003e\u003ctext x=\"35.1\" y=\"117.7\" text-anchor=\"middle\"\u003eO\u003c\/text\u003e\u003ctext x=\"84.9\" y=\"146.2\" text-anchor=\"middle\"\u003eO\u003c\/text\u003e\u003ctext x=\"134.4\" y=\"117.4\" text-anchor=\"middle\"\u003eO\u003c\/text\u003e\u003ctext x=\"85\" y=\"91\" text-anchor=\"middle\" style=\"font:bold 15px sans-serif\"\u003eK⁺\u003c\/text\u003e\u003c\/g\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;font-size:20px;padding:0 4px;\"\u003e+\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:center;font-size:14px;padding:0 4px;\"\u003eY⁻\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:12px;margin:4px 0 0 0;\"\u003e\u003cem\u003e18-Crown-6 (left) binds the potassium cation of a salt K⁺Y⁻ and gives the dissolved complex with a weakly paired anion Y⁻ (right), for example fluoride, cyanide or acetate.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003ePhase-transfer catalysis.\u003c\/strong\u003e Because it carries potassium salts into organic solvents, 18-crown-6 is used as a phase-transfer catalyst. Reported uses include alkylation reactions with potassium carbonate, the \u003cem\u003eN\u003c\/em\u003e-alkylation of heterocycles with \u003cem\u003etert\u003c\/em\u003e-butoxide bases, the allylation of aldehydes with potassium allyltrifluoroborate to give homoallylic alcohols, and the synthesis of diaryl ethers, diaryl thioethers and diarylamines. Its complex with potassium cyanide catalyses the addition of trimethylsilyl cyanide to carbonyl compounds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCoordination chemistry.\u003c\/strong\u003e 18-Crown-6 is also used as a complexing agent to prepare molecular complexes of metal cations, including ionic liquids based on crown-ether coordination compounds.\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":"10 g","offer_id":55370207854929,"sku":"NOR-17455139-10g","price":44.9,"currency_code":"EUR","in_stock":true},{"title":"25 g","offer_id":55166958305617,"sku":"NOR-17455139-25g","price":84.2,"currency_code":"EUR","in_stock":true},{"title":"50 g","offer_id":55370207887697,"sku":"NOR-17455139-50g","price":109.2,"currency_code":"EUR","in_stock":true},{"title":"100 g","offer_id":55166958338385,"sku":"NOR-17455139-100g","price":129.2,"currency_code":"EUR","in_stock":true},{"title":"250 g","offer_id":55370207920465,"sku":"NOR-17455139-250g","price":198.2,"currency_code":"EUR","in_stock":true},{"title":"500 g","offer_id":55166958371153,"sku":"NOR-17455139-500g","price":229.2,"currency_code":"EUR","in_stock":true},{"title":"1 kg","offer_id":55166958403921,"sku":"NOR-17455139-1kg","price":398.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/6357\/1793\/files\/NorrChemica_18-Crown-6.png?v=1791060488","url":"https:\/\/www.norrchemica.com\/products\/18-crown-6-cas-17455-13-9","provider":"NorrChemica","version":"1.0","type":"link"}