C.I. ACID RED 73

PRODUCT IDENTIFICATION

CAS NO. 5413-75-2

C.I. ACID RED 73 

EINECS NO. 226-502-1
FORMULA C22H16N4O7S2
MOL WT. 556.49
H.S. CODE 3204.12
TOXICITY  
SYNONYMS C.I. Acid Red 73; C.I. 27290; Brilliant Crocein MOO;
7-Hydroxy-8-[[4-(phenylazo)phenyl]azo]-1,3-Naphthalenedisulfonic acid disodium salt; Sodium 6-hydroxy-5-(4-phenylazophenylazo)naphthalene-2,4-disulphonate; Croceine Scarlet; Scarlet GR; Brilliant Crocein; Other RN: 61813-60-3, 77466-28-5, 84842-89-7, 188763-03-3
SMILES c12c(cc(S(=O)(=O)[O-])cc2S(=O)(=O)[O-])ccc(c1\N=N \c1ccc(\N=N\ c2ccccc2 )cc1) O.[Na+].[Na+]

CLASSIFICATION

Acid dye

EXTRA NOTES

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE red powder
MELTING POINT  
BOILING POINT  
SPECIFIC GRAVITY  
SOLUBILITY IN WATER Soluble
SOLUBILITY

 

FASTNESS Light (4), Washing (4), Rubbing Wet (4-5), Rubbing·Dry (4)
AUTOIGNITION  
pH  
VAPOR DENSITY  
NFPA RATINGS Health: 1; Flammability: 0; Reactivity: 0

REFRACTIVE INDEX

 
FLASH POINT

 

STABILITY Stable under ordinary conditions

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking - Azo compound

Google Scholar Search - Acid Red 73

Drug Information Portal (U.S. National Library of Medicine) - Acid Red 73

PubChem Compound Summary - Acid Red 73

KEGG (Kyoto Encyclopedia of Genes and Genomes) - Acid Red 73

http://www.ebi.ac.uk/ - Acid Red 73

http://www.ncbi.nlm.nih.gov/ - Acid Red 73

http://toxnet.nlm.nih.gov/
Hazardous Substances Data Bank - Acid Red 73

Local:
Acid dyes are water-soluble dyes employed mostly in the form of sodium salts of the sulfonic or carboxylic acids. They are anionic which attach strongly to cationic groups in the fibre directly. They can be applicable to all kind of natural fibres like wool, cotton and silk as well as to synthetics like polyesters, acrylic and rayon. But they are not substantive to cellulosic fibres. They are also used in paints, inks, plastics and leather.

SALES SPECIFICATION

APPEARANCE

red powder
STRENGTH

100.0 ± 3.0%

MOISTURE

5.0% max

INSOLUBLES N WATER

1.0% max

TRANSPORTATION
PACKING  
HAZARD CLASS Not regulated
UN NO.

 

OTHER INFORMATION

Hazard Symbols: n/a Risk Phrases: n/a, Safety Phrases: 24/25