127107-30-6

Basic information

• Product Name: 3-amino-1-phenylpyrazole hydrochloride
• CAS NO: 127107-30-6
• Molecular Weight: 195.651
• Mol File: 127107-30-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3-amino-1-phenylpyrazole hydrochloride(CAS DataBase Reference)
• NIST Chemistry Reference: 3-amino-1-phenylpyrazole hydrochloride(127107-30-6)
• EPA Substance Registry System: 3-amino-1-phenylpyrazole hydrochloride(127107-30-6)

Safety Data

• Hazardous Substances Data: 127107-30-6(Hazardous Substances Data)

Upstream product

• 1128-56-9 3-amino-1-phenylpyrazole 

Relevant articles and documents

U.V. and 15N N.M.R. Integrated Study of the Protonation of Aminoazoles

The behaviour on protonation of a series of 3-, 4-, and 5-aminoisoxazoles has been studied by 15N n.m.r. spectroscopy.The results confirm that the first protonation site in the 3- and 5-amino derivatives is located at the endocyclic nitrogen atom, while in 4-amino derivatives it is at the exocyclic nitrogen.In addition, the protonation of 3-, 4-, and 5-amino substituted 1-methyl- and 1-phenyl-pyrazoles has been investigated by an integrated u.v. and 15N n.m.r. approach.The first protonation site in the 5-amino derivatives is the pyridine-like endocyclic nitrogen, while in the 4-amino derivatives it is the exocyclic nitrogen.The 3-amino series behaves exceptionally because a tautomeric equilibrium is possible between the endocyclic and exocyclic monocations.In sulphuric acid the position of this equilibrium is dependent on H2SO4 concentration.Diprotonation of these derivatives in concentrated sulphuric acid solutions has also been studied.