330000

Rose bengal

Dye content 95 %, ≥96% (HPLC)

• Synonyme(s) : 4,5,6,7-Tetrachloro-2′,4′,5′,7′-tetraiodofluorescein disodium salt, Acid Red 94, Bengal Rose B sodium salt, Rose Bengal sodium salt
• Formule empirique (notation de Hill): C₂₀H₂Cl₄I₄Na₂O₅
• Numéro CAS: 632-69-9
• Poids moléculaire : 1017.64
• Numéro Beilstein : 3645857
• Numéro CE : 211-183-3
• Numéro MDL: MFCD00005043
• Code UNSPSC : 12171500
• ID de substance PubChem : 24859827
• Nomenclature NACRES : NA.47

Propriétés

• Pureté: ≥96% (HPLC)
• Forme: solid
• Composition: Dye content, 95%
• Technique(s): titration: suitable
• Couleur: red to brown
• ε (coefficient d'extinction): ≥ 3000 at 350-354 nm; ≥12000 at 311-315 nm; ≥32000 at 262-266 nm; ≥32000 at 513-517 nm; ≥98000 at 546-550 nm at 0.04 g/L (H2O + 1ml 1% Na2CO3)
• Application(s): diagnostic assay manufacturing; hematology; histology
• Température de stockage: room temp
• Chaîne SMILES: [Na+].[Na+].[O-]C(=O)c1c(Cl)c(Cl)c(Cl)c(Cl)c1C2=C3C=C(I)C(=O)C(I)=C3Oc4c(I)c([O-])c(I)cc24
• InChI: 1S/C20H4Cl4I4O5.2Na/c21-10-8(9(20(31)32)11(22)13(24)12(10)23)7-3-1-5(25)16(29)14(27)18(3)33-19-4(7)2-6(26)17(30)15(19)28;;/h1-2,29H,(H,31,32);;/q;2*+1/p-2
• Clé InChI: UWBXIFCTIZXXLS-UHFFFAOYSA-L

Description

Description générale

Rose Bengal is a red or rose color dye and is anionic in nature. It is a 4,5,6,7-tetrachloro 2′,4′,5′,7′-tetraiodo derivative of fluorescein. It is widely used to detect damage to the ocular surface epithelium in ocular surface diseases such as dry eye and herpetic keratitis. Rose Bengal has mild antiviral potency.

Rose Bengal is used to stain dead and degenerating cells and mucus.

Application

Rose Bengal has been used to evaluate acrosome integrity. It has also been used to initiate photothrombotic occlusion in blood.

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)