Acid yellow 34

4-chloro-3-(3-methyl-5-oxo-4-phenyldiazenyl-4H-pyrazol-1-yl)benzenesulfonic acid

CAS: 6359-90-6

Molecular Formula	`C16H13ClN4O4S`
Molecular Weight	392.8 g/mol
LogP	2.7
Topological Polar Surface Area	120.0 A2
Hydrogen Bond Donors	1
Hydrogen Bond Acceptors	7
Rotatable Bonds	4
Exact Mass	392.0346
Heavy Atoms	26
Complexity	700.0

Chemical Identifiers

CAS Number	6359-90-6
SMILES	`CC1=NN(C(=O)C1N=NC2=CC=CC=C2)C3=C(C=CC(=C3)S(=O)(=O)O)Cl`
InChIKey	`QDTMJKXRTWLGGY-UHFFFAOYSA-N`

📖 Product Overview

Acid yellow 34 (CAS: 6359-90-6) is a chemical compound with molecular formula C16H13ClN4O4S and molecular weight 392.8 g/mol. Its IUPAC systematic name is 4-chloro-3-(3-methyl-5-oxo-4-phenyldiazenyl-4H-pyrazol-1-yl)benzenesulfonic acid. LogP 2.7 Topological Polar Surface Area 120.0 A2 Hydrogen Bond Donors 1 Hydrogen Bond Acceptors 7 Rotatable Bonds 4 Exact Mass 392.0346 Heavy Atoms 26 Complexity 700.0 InChI Key: QDTMJKXRTWLGGY-UHFFFAOYSA-N. SMILES: CC1=NN(C(=O)C1N=NC2=CC=CC=C2)C3=C(C=CC(=C3)S(=O)(=O)O)Cl.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.

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