2-Naphthalenesulfonicacid,6-[2-[2-amino-4-[(2-hydroxyethyl)amino]phenyl]diazenyl]-3-[2-[4-[[4-[2-[7-[2-[2-amino-4-[(2-hydroxyethyl)amino]phenyl]diazenyl]-1-hydroxy-3-sulfo-2-naphthalenyl]diazenyl]phenyl]amino]-3-sulfophenyl]diazenyl]-4-hydroxy-,sodium salt (1:3) cas no:6428-38-2

Name2-Naphthalenesulfonicacid,6-[2-[2-amino-4-[(2-hydroxyethyl)amino]phenyl]diazenyl]-3-[2-[4-[[4-[2-[7-[2-[2-amino-4-[(2-hydroxyethyl)amino]phenyl]diazenyl]-1-hydroxy-3-sulfo-2-naphthalenyl]diazenyl]phenyl]amino]-3-sulfophenyl]diazenyl]-4-hydroxy-,sodium salt (1:3)
CAS6428-38-2
Synonyms2-Naphthalenesulfonicacid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-,trisodium salt (9CI); C.I. Direct Black 32, trisodium salt (8CI); BenzonerolABS; C.I. 35440; C.I. Direct Black 32; Cotoneral ABS; Cotonerol AB; DialuminousBlack AB; Diazol Fast Black JRA; Direct Artificial Silk Black BO; Direct Black2S; Direct Black 32; Direct Black AB; Direct Black Z for Leather; Direct FastBlack AB; Direct Fast Black CAB; Kayarus Black ARX; Orbamin Black A Conc.; SumilightBlack AB
EINECS(EC#)229-209-7
Molecular FormulaC48H43 N13 O13 S3 . 3 Na
Molecular Weight1172.16

Hazard Moderately toxic. Low toxicity by ingestion.
Safety

Moderately toxic by intraperitoneal route. Low toxicity by ingestion. When heated to decomposition it emits toxic vapors of NO_x and SO_x.

Toxic information about C.I. Direct Black 32, Trisodium Salt (CAS NO.6428-38-2) is:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LD50	intraperitoneal	1060mg/kg (1060mg/kg)	behavioral: somnolence (general depressed activity) kidney, ureter, and bladder: other changes in urine composition skin and appendages (skin): "dermatitis, other: after systemic exposure"	Toksikologicheskii Vestnik. Vol. (3), Pg. 38, 1998.
mouse	LD50	oral	> 5gm/kg (5000mg/kg)	behavioral: somnolence (general depressed activity) kidney, ureter, and bladder: other changes in urine composition skin and appendages (skin): "dermatitis, other: after systemic exposure"	Toksikologicheskii Vestnik. Vol. (3), Pg. 38, 1998.
rat	LD50	intraperitoneal	1gm/kg (1000mg/kg)	behavioral: somnolence (general depressed activity) kidney, ureter, and bladder: other changes in urine composition skin and appendages (skin): "dermatitis, other: after systemic exposure"	Toksikologicheskii Vestnik. Vol. (3), Pg. 38, 1998.
rat	LD50	oral	> 10gm/kg (10000mg/kg)	behavioral: somnolence (general depressed activity) kidney, ureter, and bladder: other changes in urine composition skin and appendages (skin): "dermatitis, other: after systemic exposure"	Toksikologicheskii Vestnik. Vol. (3), Pg. 38, 1998.