C.I. Acid Yellow 23
time:2015-09-08 19:10:22,count:0

C.I. Acid Yellow 23
Alias
Acid Yellow 23
Tartrazine
C.I. 19140
1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-(2-(4-sulfophenyl)diazenyl)-, sodium salt (1:3)
Category
Zwitterionic surfactants-Amino sulfonic acid
CAS No.
1934-21-0
Molecular Formula & Molecular Weight
Molecular Formula: C16H9N4Na3S2O9
Molecular Weight: 534.36
Structural Formula
Properties
Appearance: solid.
Solubility: soluble in water.
Stability: stable.
Risk: irritation, irritation to skin, eye.
Animal toxicity[1]: mouse oral LD50: 12750mg/Kg;
rat intraperitoneal LD50: > 2000mg/Kg;
rat intravenous LD50: > 2000mg/Kg.
reproductive effect.
Human toxicity[1]: human oral TDLo: 0.014mg/Kg.
Ecology: may be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent masking, coloring 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.
Hair dying agent in personal care products.
Manufacturers
 
References
[1]:http://toxnet.nlm.nih.gov/: 1934-21-0

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