75722-61-1

Basic information

• Product Name: 5-(phenylcarbamoyl)pyridazine-4-carboxylic acid
• CAS NO: 75722-61-1
• Molecular Weight: 243.222
• Mol File: 75722-61-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 5-(phenylcarbamoyl)pyridazine-4-carboxylic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 5-(phenylcarbamoyl)pyridazine-4-carboxylic acid(75722-61-1)
• EPA Substance Registry System: 5-(phenylcarbamoyl)pyridazine-4-carboxylic acid(75722-61-1)

Safety Data

• Hazardous Substances Data: 75722-61-1(Hazardous Substances Data)

Upstream product

• 59648-14-5 pyridazine-4,5-dicarboxylic acid 
• 59648-15-6 furo<3,4-d>pyridazine-5,7-dione 
• 62-53-3 aniline 

Relevant articles and documents

Ring-Chain Isomerism of Some 4,5-Disubstituted Pyridazines involving Heterospiro-compounds

I.r., u.v., and 1H n.m.r. spectral evidence demonstrated that 5-(o-aminophenylcarbamoyl)pyridazine-4-carboxylic acid (4), for which the zwitterionic structure (4a) appeared the most likely in the solid state, existed in dimethyl sulphoxide solution nearly exclusively as 3',4'-dihydro-3'-oxospiro-4-carboxylic acid (18).The equilibrium (4a) (18) was strongly influenced by the nature of the solvent.A study of the behaviour of compounds (5)-(10) enabled us to establish that the spirocyclisation critically depends on both the nature of the substituents on the pyridazine ring and on the nucleophilicity of the group bonded to the phenyl ring.