Direct Black 32
time:2015-08-09 18:29:45,count:0

Direct Black 32
Alias
C.I. 35440
C.I. Direct Black 32
2-Naphthalenesulfonic acid, 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
Category
Zwitterionic surfactants-Amino sulfonic acid
CAS No.
6428-38-2
Molecular Formula & Molecular Weight
Molecular Formula: C48H40N13Na3S3O13
Molecular Weight: 1172.07
Structural Formula
Properties
Appearance: solid.
Solubility: slightly soluble in water.
Stability: stable.
Risk: irritation, irritation to skin, eye.
Animal toxicity[1]: mouse intraperitoneal LD50: 1060mg/Kg;
mouse oral LD50: > 5000mg/Kg;
rat intraperitoneal LD50: 1000mg/Kg;
rat oral LD50: > 10000mg/Kg.
Ecology: may be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent masking, dispersing abilities.
Synthesis
 
Quality standards & test methods
item
physical and chemical indexes
test methods
actives*, %, ≥
95
 
*: should be marked on molecular weight.
Major Uses
Use as dye.
Manufacturers
 
References
[1]:http://toxnet.nlm.nih.gov/: 6428-38-2

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