4H,5H-pyrazolo[1,5-a]pyrazin-4-one

Product Name: 4H,5H-pyrazolo[1,5-a]pyrazin-4-one
CAS No.: 1301714-00-0
Chemical Name: 4H,5H-pyrazolo[1,5-a]pyrazin-4-one
Synonyms: pyrazolo[1,5-a]pyrazin-4-ol;5H-Pyrazolo[1,5-a]pyrazin-4-one;PYRAZOLO[1,5-A]PYRAZIN-4(5H)-ONE;4H,5H-pyrazolo[1,5-a]pyrazin-4-one
CBNumber: CB53662415
Molecular Formula: C6H5N3O
Formula Weight: 135.12
MOL File: 1301714-00-0.mol

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4H,5H-pyrazolo[1,5-a]pyrazin-4-one Property

Boiling point:: 243.2±40.0 °C(Predicted)
Density: 1.51±0.1 g/cm3(Predicted)
storage temp.: Sealed in dry,Room Temperature
pka: 11.54±0.20(Predicted)
Appearance: Off-white to light brown Solid

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Biosynth

Product number: BCC71400
Product name: Pyrazolo[1,5-a]pyrazin-4-ol
Packaging: 0.5g
Price: $500
Updated: 2026/06/04

Biosynth

Product number: BCC71400
Product name: Pyrazolo[1,5-a]pyrazin-4-ol
Packaging: 5g
Price: $1937.5
Updated: 2026/06/04

aablocks

Product number: AA00HRXZ
Product name: Pyrazolo[1,5-a]pyrazin-4(5H)-one
Purity: 96%
Packaging: 100mg
Price: $53
Updated: 2026/05/29

aablocks

Product number: AA00HRXZ
Product name: Pyrazolo[1,5-a]pyrazin-4(5H)-one
Purity: 96%
Packaging: 250mg
Price: $88
Updated: 2026/05/29

ACHEMBLOCK

Product number: S81281
Product name: 4H,5H-pyrazolo[1,5-a]pyrazin-4-one
Purity: 97%
Packaging: 1G
Price: $205
Updated: 2026/05/27