1156538-72-5

Basic information

• Product Name: 6-(4-acetylphenylhydrazono)-2-methyl-3-(phenylazo)pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione
• Synonyms: 6-(4-acetylphenylhydrazono)-2-methyl-3-(phenylazo)pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione
• CAS NO: 1156538-72-5
• Molecular Weight: 415.411
• Mol File: 1156538-72-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 6-(4-acetylphenylhydrazono)-2-methyl-3-(phenylazo)pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 6-(4-acetylphenylhydrazono)-2-methyl-3-(phenylazo)pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione(1156538-72-5)
• EPA Substance Registry System: 6-(4-acetylphenylhydrazono)-2-methyl-3-(phenylazo)pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione(1156538-72-5)

Safety Data

• Hazardous Substances Data: 1156538-72-5(Hazardous Substances Data)

Upstream product

• 3283-79-2 4-acetylphenyldiazonium chloride 
• 59119-56-1 2-methyl-3-(phenylazo)pyrazolo[1,5-a]pyrimidine-5,7(4H,6H)-dione 

Relevant articles and documents

Synthesis and tautomeric structure of 3,6-bis(arylazo)pyrazolo [1,5-a]pyrimidine-5,7(4H,6H)-diones

Two series of 3,6-bis(arylazo)pyrazolo[1,5-a]pyrimidine-5,7-diones were prepared, and their acid dissociation constant pKas were determined and correlated with the Hammett equation. The results of these correlations, together with the spectroscopic data, indicated that the title compounds exist predominantly in the 3-arylazo-6- arylhydrazonopyrazolo[1,5-a]pyrimidine-5,7- dione tautomeric form, both in the solid and solution phases.