Basic information
CAS NO
104-23-4
EINECS
203-187-9
Molecular Formula
C12H11N3O3S
Molecular Weight
277.299
English Name
4'-aminoazobenzene-4-sulfonic acid
Synonyms
C.I. 13011 (Free acid), C.I. Food Yellow 6, 4-(4-Aminophenylazo)benzenesulfonic acid, 4-Aminoazobenzene-4-sulfonic acid, sodium 4-[(E)-(4-aminophenyl)diazenyl]benzenesulfonate, 4-[(E)-(4-aminophenyl)diazenyl]benzenesulfonic acid, potassium 4-[(E)-(4-aminophenyl)diazenyl]benzenesulfonate, 4-Aminoazobenzene-4'-sulfonic acid, 4'-Aminoazobenzene-4-sulphonic acid, Para-Aminoazobenzene-4-sulfonic acid
Physical and Chemical Properties
Density
1.43g/cm3
Refractive index
1.663
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