3-Amino-5-pyrazolone

Modify Date: 2025-08-22 12:07:59

3-Amino-5-pyrazolone Structure
3-Amino-5-pyrazolone structure
Common Name 3-Amino-5-pyrazolone
CAS Number 6126-22-3 Molecular Weight 99.091
Density 1.6±0.1 g/cm3 Boiling Point 479.5±25.0 °C at 760 mmHg
Molecular Formula C3H5N3O Melting Point 214 °C (dec.)(lit.)
MSDS Chinese USA Flash Point 243.8±23.2 °C
Symbol GHS07
GHS07
Signal Word Warning

 Names

Name 3-Amino-5-hydroxypyrazole
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.6±0.1 g/cm3
Boiling Point 479.5±25.0 °C at 760 mmHg
Melting Point 214 °C (dec.)(lit.)
Molecular Formula C3H5N3O
Molecular Weight 99.091
Flash Point 243.8±23.2 °C
Exact Mass 99.043259
PSA 74.93000
LogP -0.22
Vapour Pressure 0.0±1.2 mmHg at 25°C
Index of Refraction 1.741

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H315-H319-H335
Precautionary Statements P261-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xi
Risk Phrases R36/37/38
Safety Phrases S26-S37/39
RIDADR NONH for all modes of transport
WGK Germany 3
HS Code 2933199090

 Synthetic Route

~%

3-Amino-5-pyrazolone Structure

3-Amino-5-pyrazolone

CAS#:6126-22-3

Literature: Bulletin de la Societe Chimique de France, , vol. <5>4, p. 854,858

 Precursor & DownStream

Precursor  2

DownStream  0

 Customs

HS Code 2933199090
Summary 2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Articles3

More Articles
Synthesis of 2,6-difluoro-N-(3-[11C]methoxy-1H-pyrazolo[3,4-b]pyridine-5-yl)-3-(propylsulfonamidio)benzamide as a new potential PET agent for imaging of B-Raf(V600E) in cancers.

Bioorg. Med. Chem. Lett. 23(4) , 1017-21, (2013)

The authentic standard 2,6-difluoro-N-(3-methoxy-1H-pyrazolo[3,4-b]pyridine-5-yl)-3-(propylsulfonamidio)benzamide was synthesized from 2,6-difluorobenzoic acid and 3-amino-5-hydroxypyrazole in 9 steps...

One-step synthesis of diarylpyrazolo[3,4-b]pyridines from isoflavones.

J. Comb. Chem. 12(4) , 600-3, (2010)

A new concise, facile, and efficient method for the synthesis of 3-hydroxy-5,6-diphenylpyrazolo[3,4-b]pyridine derivatives has been described. The cyclocondensation of isoflavones with 3-amino-5-hydro...

Molecular structure and vibrational spectra of 3-amino-5-hydroxypyrazole by density functional method.

Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 71(5) , 1776-82, (2009)

In this work, we report a combined experimental and theoretical study on molecular and vibrational structure of 3-amino-5-hydroxypyrazole (3A5HP). The Fourier transform infrared and Fourier transform ...

 Synonyms

5-Amino-1,2-dihydro-3H-pyrazol-3-one
3-amino-5-pyrazole
(−)-Selagine
5-Amino-1,2-dihydro-pyrazol-3-on
Huperzine A
3-aminopyrazol-5-one
5-Amino-3-hydroxy-1H-pyrazole
3-Amino-1H-pyrazol-5(4H)-one
(-)-Huperzine A
3-Amino-3-pyrazolin-5-one
3-amino-5-pyrazolinone
3-aminopyrazolin-5-one
5-AMINO-3-PYRAZOLOL
5-amino-1,2-dihydro-pyrazol-3-one
EINECS 228-095-6
3-amino-5-oxo-4,5-dihydropyrazole
5-amino-3-pyrazolone
5-Amino-1H-pyrazol-3(2H)-one
3-amino-pyrazol-2-en-5-one
3-Amino-1H-pyrazol-5-ol
5-amino-1,2-dihydropyrazol-3-one
5-AMINOPYRAZOL-3-OL
(−)-Huperzine A
5-amino-3-pyrrazolone
MFCD00022384
3-amino-5-oxopyrazoline
3-Amino-5-pyrazolone
3H-Pyrazol-3-one, 5-amino-1,2-dihydro-
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