Erythrosin B , 95% , 15905-32-5

CAS NO.：15905-32-5

Empirical Formula: C20H8I4O5

Molecular Weight: 835.89

MDL number: MFCD00005044

EINECS: 240-046-0

PRODUCT Properties

• Melting point: 303 °C (dec.)(lit.)
• Boiling point: 628.3±55.0 °C(Predicted)
• Density: 2.4391 (estimate)
• storage temp.: room temp
• solubility: spirit: soluble
• form: powder
• Colour Index: 45430:2
• pka: 7.21±0.20(Predicted)
• color: Red
• Water Solubility: Soluble in water, spirit, methanol, methyl cellosolve and ethanol.
• EPA Substance Registry System: 2',4',5',7'-Tetraiodofluorescein (15905-32-5)

Description and Uses

Erythrosin B has been used as a dye in fluorescence lifetime imaging.

Safety

• Symbol(GHS): GHS05
• Signal word: Danger
• Hazard statements: H314-H290
• Precautionary statements: P501-P234-P264-P280-P390-P303+P361+P353-P301+P330+P331-P363-P304+P340+P310-P305+P351+P338+P310-P406-P405
• Safety Statements: 22-24/25
• WGK Germany: 2
• RTECS: LM5940000
• TSCA: Yes
• HS Code: 29329990
• Toxicity: A food color formerly approved for use in the United States and Europe. It was used primarily in jams and marmalades, maraschino cherries, pickles and relishes, etc. The LD50 in rats is 150 mg/kg, i.p., and 600 mg/kg, p.o. Erythrosine has a variety of actions in vitro due in large measure to its ability to affect biological membranes and lipophilic sites of enzymes. Such data have led to the hypothesis that erythrosine could be neurotoxic, but both clinical and preclinical data have suggested that erythrosine is not likely to be neurotoxic at doses that might be encountered. Two other toxicological issues have been raised with this food color. It has been suggested to be a potential, if weak, carcinogen, and it may also contribute to potential thyroid toxicity resulting from release of iodine.