Acid Yellow 49

Modify Date: 2025-08-24 09:08:39

Acid Yellow 49 Structure
Acid Yellow 49 structure
Common Name Acid Yellow 49
CAS Number 12239-15-5 Molecular Weight 426.277
Density 1.6±0.1 g/cm3 Boiling Point N/A
Molecular Formula C16H13Cl2N5O3S Melting Point N/A
MSDS N/A Flash Point N/A

 Names

Name 2,5-dichloro-4-[(2Z)-2-(5-imino-3-methyl-1-phenylpyrazol-4-ylidene)hydrazinyl]benzenesulfonic acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.6±0.1 g/cm3
Molecular Formula C16H13Cl2N5O3S
Molecular Weight 426.277
Exact Mass 425.011627
PSA 131.31000
LogP 3.91
Index of Refraction 1.720

 Safety Information

HS Code 3204120000

 Synthetic Route

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Acid Yellow 49 Structure

Acid Yellow 49

CAS#:12239-15-5

Literature: Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), , p. 1107 - 1114

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Acid Yellow 49 Structure

Acid Yellow 49

CAS#:12239-15-5

Literature: Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), , p. 1107 - 1114

 Precursor & DownStream

Precursor  2

DownStream  0

 Customs

HS Code 3204120000

 Synonyms

5-Amino-1-phenyl-4-((2,5-dichloro-4-sulfophenyl)azo)-3-methyl-pyrazole
einecs 235-473-4
Benzenesulfonic acid, 4-((5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo)-2,5-dichloro-
c.i. acid yellow 49
Benzenesulfonic acid, 4-[(E)-2-(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl]-2,5-dichloro-
2,5-Dichloro-4-((5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo)benzenesulfonic acid
4-((5-Amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo)-2,5-dichlorobenzenesulphonic acid
i04-9876
4-[(E)-(5-Amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl]-2,5-dichlorobenzenesulfonic acid
Acid Yellow 49
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