{"product_id":"molekula-fluorescein-disodium-salt-insoluble-50-53-dye-content","title":"Molekula Fluorescein disodium salt (insoluble, 50-53% dye content)","description":"\u003cp\u003eFluorescein disodium salt (insoluble, 50–53% dye content) is a fluorescent dye used in biological staining, diagnostic assays, and tracer studies.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCAS number:\u003c\/strong\u003e 518-47-8\u003c\/p\u003e\u003cp\u003eSelect the required pack size. Contact Bench \u0026amp; Flask for bulk quantities and availability.\u003c\/p\u003e\u003cp\u003eSupplier packaging image is illustrative; packaging may vary by pack size.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eProperty\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eValue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eAppearance\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eRed\/ dark orange powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eHeavy metals\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e≤ 40 mg\/kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eLoss on Drying\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e≤ 8%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eAssay\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e≥80.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eAbsorption Ratio\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e1.20-1.70 ((λmax - 15 nm)\/(λmax +15 nm))\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eCadmium (Cd)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e≤ 1 mg\/kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eLead (Pb)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e≤ 10 mg\/kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eMercury (Hg)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e≤ 1 mg\/kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eArsenic (As)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e≤ 3 mg\/kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eWavelength of Max. Absorption\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e488.0 - 492.0 nm (in distilled water)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eStorage \u0026amp; handling\u003c\/h3\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eProperty\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eValue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eAmbient\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eFlash Point\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e218 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eAcidity\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eNeutral\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eIdentification\u003c\/h3\u003e\u003ctable style=\"width:100%;border-collapse:collapse\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eProperty\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eValue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eSKU\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e15462696\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eCAS Number\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e518-47-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eIUPAC Name\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003edisodium;2-(3-oxido-6-oxoxanthen-9-yl)benzoate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eEC Number\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e208-253-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eMolecular Formula\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eC20H10Na2O5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eMolecular Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e376.28\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eExact Mass\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e376.0324\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eSMILES\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eC1=CC=C2C(=C1)C(=O)OC23C4=C(C=C(C=C4)\\[O-\\])OC5=C3C=CC(=C5)\\[O-\\].\\[Na+\\].\\[Na+\\]\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eInChIKey\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eNJDNXYGOVLYJHP-UHFFFAOYSA-L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eInChI\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eInChI=1S\/C20H12O5.2Na\/c21-11-5-7-15-17(9-11)25-18-10-12(22)6-8-16(18)19(15)13-3-1-2-4-14(13)20(23)24;;\/h1-10,21H,(H,23,24);;\/q;2\\*+1\/p-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003ePubChem CID\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e10608\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eREACH Code\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eY113\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eTSCA Listed\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eHTS Code\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e32129000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003eTariff Code\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd\"\u003e3212900000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eSafety \u0026amp; GHS\u003c\/h3\u003e\u003ch3\u003ePrecautionary statements\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eP264Wash thoroughly after handling\u003c\/li\u003e\n\u003cli\u003eP280Wear protective gloves\/protective clothing\/eye protection\/face protection\u003c\/li\u003e\n\u003cli\u003eP308+313IF exposed or concerned: Get medical advice\/attention\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\\\\\u003c\/p\u003e\u003cp\u003e\\\\\u003c\/p\u003e\u003cp\u003e\\\\\u003c\/p\u003e\u003cp\u003e\\\\\u003c\/p\u003e\u003cp\u003e\\\\\u003c\/p\u003e\u003cp\u003e\\\\\u003c\/p\u003e\u003ch3\u003eAlternative names\u003c\/h3\u003e\u003cp\u003eAk-Fluor; Fluorescein disodium salt; Fluorescein, soluble; Ki202; Resorcinol phthalein sodium; Sodium fluorescein; Soluble fluorescein; Uranin; Uranine WSS; Uranine Yellow\u003c\/p\u003e\u003ch3\u003eProduct documentation\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/molekula.com\/specification\/15462696.pdf\"\u003eProduct specification PDF\u003c\/a\u003e. Batch-specific certificates of analysis and safety data sheets are available on request.\u003c\/p\u003e","brand":"Molekula","offers":[{"title":"500 g","offer_id":55041816527186,"sku":"15462696-500g","price":105.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1100\/3225\/7362\/files\/molekula-fluorescein-disodium-salt-insoluble-50-53-dye-content-1035906.jpg?v=1791954253","url":"https:\/\/www.benchandflask.co.uk\/products\/molekula-fluorescein-disodium-salt-insoluble-50-53-dye-content","provider":"Bench\u0026Flask","version":"1.0","type":"link"}