IUPAC Name: Tetrasodium(3E)-3-[[4-[4-[2,6-diamino-3-methyl-5-[(7Z)-8-oxo-3,6-disulfonato-7-[(4-sulfonatonaphthalen-1-yl)hydrazinylidene]naphthalen-2-yl]diazenylphenyl]diazenylphenyl]phenyl]hydrazinylidene]-6-oxocyclohexa-1,4-diene-1-carboxylate
Molecular Formula: C46H30N10O13S3•4 Na
Molecular Weight: 1119.00g/mol
EINECS: 219-390-0
Freely Rotating Bonds: 15
Polar Surface Area: 346.81 Å2
The Cas Register Number of C.I. Direct brown 31 is 2429-81-4.The chemical synonyms of C.I. Direct brown 31 (CAS NO.2429-81-4) are Tetrasodium 5-[[4'-[[2,6-diamino-3-[[8-hydroxy-3,6-disulphonato-7-[(4-sulphonato-1-naphthyl)azo]-2-naphthyl]azo]-5-tolyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate ; Vondacel Brown SP ; C.I. Direct Brown 31 ; 5-[[4'-[[2,6-Diamino-3-[[8-hydroxy-3,6-bis(sodiosulfo)-7-[(4-sodiosulfo-1-naphtyl)azo]-2-naphtyl]azo]-5-methylphenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxybenzoic acid sodium salt ; 5-[[4'-[[2,6-Diamino-5-methyl-3-[[7-[(4-sodiosulfo-1-naphthalenyl)azo]-8-hydroxy-3,6-bis(sodiosulfo)-2-naphthalenyl]azo]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxybenzoic acid sodium salt .The molecular structure of C.I. Direct brown 31 (CAS NO.2429-81-4) is.
C.I. Direct brown 31 (CAS NO.2429-81-4) is used as dye.
1. | mmo-sat 300 nmol/plate | MUREAV Mutation Research. 136 (1984),33. | ||
2. | mma-sat 10 nmol/plate | MUREAV Mutation Research. 136 (1984),33. |
Reported in EPA TSCA Inventory.
Mutation data reported. When heated to decomposition it emits toxic vapors of NOx and SOx.
Its extinguishing agent are dry powder, foam, sand, carbon dioxide and water mist.
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