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2429-81-4

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Basic Information
CAS No.: 2429-81-4
Name: 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
Molecular Structure:
Molecular Structure of 2429-81-4 (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)
Formula: C46H34 N10 O13 S3 . 4 Na
Molecular Weight: 1119.00
Synonyms: Benzoicacid,5-[[4'-[[2,6-diamino-3-[[8-hydroxy-3,6-disulfo-7-[(4-sulfo-1-naphthalenyl)azo]-2-naphthalenyl]azo]-5-methylphenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-,tetrasodium salt (9CI); C.I. Direct Brown 31 (7CI); C.I. Direct Brown 31,tetrasodium salt (8CI); Airedale Brown BSD; Amanil Fast Brown HP; Amanil RayonBrown B; Atlantic Brown BCW; Atlantic Brown BP; Belamine Fast Brown BP;Benzanil Brown BS; Benzo Deep Brown NZ; C.I. 35660; Calcomine Brown B;Calcomine Catechu 2B; Chlorazol Brown LF; Chocolate EMBL; Chrome Leather BrownBS; Cupranil Brown BCW; Cupranil Brown BCWR; Diaphtamine Fast Brown TB; DiazolCutch F; Diazol Cutch FB; Diphenyl Brown BS; Diphenyl Brown TB; Diphenyl FastBrown F; Direct Brown 31; Direct Brown 3B; Direct Brown B; Direct Brown BS;Direct Brown BSB; Direct Brown FS; Direct Brown TRB; Direct Fast Brown BP;Direct Fast Brown TSN; Direct Fast Brown TWC; Erie Fast Brown B; Fenamin BrownPBL; Fixanol Brown LF; Hispamin Fast Brown NZ; Phenamine Fast Brown T;Phenamine Fast Brown TWC; Pontamine Brown BCW; Pontamine Brown BT; TertrodirectBrown TB; Triazol Brown B; Trisulphone Brown B; Vegentine Fast Brown B;Vondacel Brown S; Vondacel Brown SP
Density: g/cm3
Boiling Point: °Cat760mmHg
Flash Point: °C
Safety: Mutation data reported. When heated to decomposition it emits toxic vapors of NOx and SOx.
PSA: 421.27000
LogP: 10.30300
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Chemistry

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.

Uses

  C.I. Direct brown 31 (CAS NO.2429-81-4) is used as dye.

Toxicity Data With Reference

1.    

mmo-sat 300 nmol/plate

     MUREAV    Mutation Research. 136 (1984),33.
2.    

mma-sat 10 nmol/plate

     MUREAV    Mutation Research. 136 (1984),33.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Mutation data reported. When heated to decomposition it emits toxic vapors of NOx and SOx.

Specification

 Its extinguishing agent are dry powder, foam, sand, carbon dioxide and  water mist.