33165-52-5

Basic information

• Product Name: Butanoic acid, 2-[(2-chlorophenyl)azo]-3-oxo-, ethyl ester
• CAS NO: 33165-52-5
• Molecular Formula: C12H13ClN2O3
• Molecular Weight: 268.7
• Mol File: 33165-52-5.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: Butanoic acid, 2-[(2-chlorophenyl)azo]-3-oxo-, ethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Butanoic acid, 2-[(2-chlorophenyl)azo]-3-oxo-, ethyl ester(33165-52-5)
• EPA Substance Registry System: Butanoic acid, 2-[(2-chlorophenyl)azo]-3-oxo-, ethyl ester(33165-52-5)

Safety Data

• Hazardous Substances Data: 33165-52-5(Hazardous Substances Data)

Upstream product

• 89-90-7 2-chlorobenzenediazonium chloride 
• 141-97-9 ethyl acetoacetate 
• 95-51-2 o-chloroaniline 

Downstream Products

• 5707-69-7 4-(2-chlorophenylhydrazono)-3-methyl-5-isoxazolone 
• 134022-94-9 5-[(2-chlorophenyl)azo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridinecarbonitrile 
• 79326-49-1 2-(2-Chloro-phenyl)-4-(2-chloro-phenylazo)-5-methyl-2,4-dihydro-pyrazol-3-one 
• 89720-89-8 4-(2-Chloro-phenylazo)-5-methyl-2-(pyridine-2-carbonyl)-2,4-dihydro-pyrazol-3-one 

Relevant articles and documents

Synthesis of 5-(substituted phenylazo)-6-hydroxy-4-methyl-3--cyano-2- pyridones from ethyl 3-oxo-2-(substituted phenylazo)butanoates

A new procedure for the synthesis of known azo pyridone dyes is presented. A series of 5-(substituted arylazo)-6-hydroxy-4-methyl-3-cyano-2--pyridones were prepared from ethyl 3-oxo-2-(substituted phenylazo)butanoates and cyanoacetamide in acetone using potassium hydroxide as a catalyst by simple refluxing the reaction mixture. The structure of these dyes was confirmed by FT-IR, NMR and UV-Vis spectroscopy. Copyright 2011 (CC) SCS.

Syntheses and antimicrobial activities of five-membered heterocycles having a phenylazo substituent

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