Fluorescein disodium salt (insoluble, 50-53% dye content)
(15462696 | 518-47-8)

CAS: 518-47-8
Molecular Formula: C20H10O5 ·2Na
Molecular Weight: 376.28
Availablility: In Stock
Fluorescein disodium salt (insoluble, 50-53% dye content) Chemical Structure

Prepack Pricing ( GBP ‐ £ )
15462696-500g 500g £39.70

Product Detail
Product Code 15462696
Product Name Fluorescein disodium salt (insoluble, 50-53% dye content)
Categories Stains & Indicators
CAS 518-47-8
Molecular Formula C20H10O5 ·2Na
Molecular Weight 376.28
Storage Details Ambient
Harmonised Tariff Code 32129000

Product Specification
Heavy metals < 40 mg/kg
Lead <10 mg/kg
AS <3 mg/kg
HG < 1 mg/kg
Cd <1 mg/kg
Loss on Drying <8%
Assay >80%
Absorption Ratio 1.20-1.70 ((λmax - 15 nm)/(λmax +15 nm))
Appearance Red/ dark orange powder
Wavelenght of max absorption 488.0 - 492.0 nm (in distilled water)

Safety Information
Pictograms
Signal word none
Hazard statements
Precautionary statements