CI 45350
- Product Name
- CI 45350
- CAS No.
- 518-45-6
- Chemical Name
- CI 45350
- Synonyms
- KI202(2);KI202(1);Fluoresceine 94;C.I.Solvent Yellow 94:C.I.45350:1;3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one;3',6'-dihydroxyspiro[isobenzofuran-3,9'-xanthene]-1-one
- CBNumber
- CB4965895
- Molecular Formula
- C20H12O5
- Formula Weight
- 332.30628
- MOL File
- 518-45-6.mol
CI 45350 Chemical Properties,Usage,Production
Preparation
Resorcinol and Phthalic anhydride alone or in the presence of sulfuric acid Zinc chloride or condensation, namely for fluorescein, again into free acid.
Definition
ChEBI: Fluorescein (acid form) is a xanthene dye that is highly fluorescent and commonly used as a fluorescent tracer. It has a role as a radioopaque medium and a fluorescent dye. It is a xanthene dye, a member of benzoic acids, a hydroxy monocarboxylic acid, a cyclic ketone, a member of phenols and an organic heterotricyclic compound.
Properties and Applications
yellow. Soluble in water and ethanol as yellow, with strong green fluorescence. In concentrated sulfuric acid to yellow, with weak fluorescence, dilution after yellow, with yellow precipitation. Dye aqueous solution to join sodium hydroxide color dark, with dark green fluorescence. The dye for C.I. Acid Yellow 73 free Acid. Used in cosmetics coloring.
| Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
| Melting point | Stable | |||||
| ISO | Poor | Insoluble | General | No change | ||
CI 45350 Preparation Products And Raw materials
Raw materials
Preparation Products
CI 45350 Suppliers
- Tel
- +1-5166625404
- Fax
- 1-516-927-0118
- Info@alfa-chemistry.com
- Country
- United States
- ProdList
- 21317
- Advantage
- 58
View Lastest Price from CI 45350 manufacturers
- Product
- Fluorescin 518-45-6
- Price
- US $0.00/g
- Min. Order
- 10g
- Purity
- >95.00%
- Supply Ability
- 10g
- Release date
- 2024-03-28