ERYTHROSINE B

PRODUCT IDENTIFICATION

 

CAS NO. 16423-68-0

ERYTHROSINE B

EINECS NO. 240-474-8
FORMULA C20H6I4Na2O5
MOL WT. 879.86

H.S. CODE

3204.12

TOXICITY

Oral rat LD50: 1840 mg/kg
SYNONYMS Acid Red 51; C.I. 45430; FD & C Red No.3;
2',4',5',7'-Tetraiodo-3',6'-dihydroxy-spiro[3H-isobenzofuran-1,9'-xanthen]-3-one disodium salt; Tetraiodofluorescein Sodium Salt; Calcoid Erythrosine N; 2,4,5,7-Tetraiodo-3,6-dihydroxyxanthene-9-spiro-1'-3H-isobenzofuran-3'-one disodium salt; 2',4',5',7'-Tetraiodofluorescein, disodium salt; C.I.Food Red 14; Aizen Erythrosine; Tetraiodifluorescein, disodium salt;  Spiro[isobenzofuran- 1(3H),9'-[9H]xanthen]-3-one, 3',6'-dihydroxy-2',4',5',7'-tetraiodo-, disodium salt;
SMILES

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE maroon powder
MELTING POINT >300 C (Decomposes)
BOILING POINT

 

SPECIFIC GRAVITY

 

SOLUBILITY IN WATER

Soluble

PH  
VAPOR DENSITY

 

NFPA RATINGS Health: 2; Flammability: 0; Reactivity: 0

REFRACTIVE INDEX

 

FLASH POINT

 

STABILITY Stable under ordinary conditions. Hygroscopic.

APPLICATIONS

Erythrosine B is an iodo derivative of fluorescin with distinctly bluish shade where as eosin is a bromine derivatives of fluorescin. It is used in coloring cosmetics and food. It is usedas a plasma stain for nerve cells and staining bacteria in soil. It is used as a phosphorescent triplet probe to detect rotational diffusion of membrane proteins.
SALES SPECIFICATION

APPEARANCE

maroon powder

DYE CONTENT

87.0% min

VOLATILE MATTER

11.0% max

WATER INSOLUBLES

0.2% max

SUBSIDIARY DYES

4.0% max

INDIVIDUAL IMPURITY

0.5% max

ARSENIC

3ppm max

LEAD

10ppm max

MERCURY

1ppm max

TRANSPORTATION
PACKING

 

HAZARD CLASS  
UN NO.  
OTHER INFORMATION
Hazard Symbols: XN, Risk Phrases: 22, Safety Phrases: 24/25/36