| Identification | |
| Name: | Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,3',6'-dihydroxy- |
| Synonyms: | Fluorescein(8CI);3,6-Dihydroxyspiro[xanthene-9,3'-phthalide];3',6'-Fluorandiol;Benzoic acid,2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)-;C.I. 45350:1;D and C Yellow No. 7;3',6'-Dihydroxy-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one;C Yellow No. 7;Japan Yellow 201;Japan Yellow No. 201;Resorcinolphthalein;Yellow fluorescein; |
| CAS: | 2321-07-5 |
| EINECS: | 219-031-8 |
| Molecular Formula: | C20H12O5 |
| Molecular Weight: | 332.31 |
| InChI: | InChI=1/C20H12O5/c21-11-5-7-15-17(9-11)24-18-10-12(22)6-8-16(18)20(15)14-4-2-1-3-13(14)19(23)25-20/h1-10,21-22H |
| Molecular Structure: | ![(C20H12O5) Fluorescein(8CI);3,6-Dihydroxyspiro[xanthene-9,3'-phthalide];3',6'-Fluorandiol;Benzoic acid,2-(6-hyd...](https://img.guidechem.com/casimg/2321-07-5.gif) |
| Properties | |
| Density: | 1.6 g/cm3 |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
| Refractive index: | 1.46355 |
| Water Solubility: | insoluble |
| Solubility: | Insoluble in water |
| Appearance: | orange-red crystalline powder |
| Report: |
Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program. |
| Packinggroup: | I; II; III |
| Storage Temperature: | −20°C |
| Usage: | Used as a flavor in foods and in perfumery. |
| Safety Data | |
| Hazard Symbols |
Xi:Irritant
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