5-chloro-3-methyl-2(1H)-Pyrazinone

Product Name: 5-chloro-3-methyl-2(1H)-Pyrazinone
CAS No.: 105985-18-0
Chemical Name: 5-chloro-3-methyl-2(1H)-Pyrazinone
Synonyms: 5-Chloro-3-methyl-pyrazin-2-ol;5-chloro-3-methyl-1h-pyrazin-2-one;5-chloro-3-methyl-2(1H)-Pyrazinone;5-chloro-3-methylpyrazin-2(1H)-one;2(1H)-Pyrazinone, 5-chloro-3-methyl-
CBNumber: CB62514987
Molecular Formula: C5H5ClN2O
Formula Weight: 144.56
MOL File: 105985-18-0.mol

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5-chloro-3-methyl-2(1H)-Pyrazinone Property

Density: 1.45±0.1 g/cm3(Predicted)
pka: 10.05±0.60(Predicted)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H320Causes eye irritation

H335May cause respiratory irritation

Precautionary statements

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

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

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

Matrix Scientific

Product number: 303921
Product name: 5-Chloro-3-methylpyrazin-2(1H)-one
Packaging: 100.00mg
Price: $106
Updated: 2026/05/19

Matrix Scientific

Product number: 303921
Product name: 5-Chloro-3-methylpyrazin-2(1H)-one
Packaging: 250.00mg
Price: $123
Updated: 2026/05/19

Matrix Scientific

Product number: 303921
Product name: 5-Chloro-3-methylpyrazin-2(1H)-one
Packaging: 1.00g
Price: $321
Updated: 2026/05/19

aablocks

Product number: AA0084KC
Product name: 5-CHLORO-3-METHYL-2(1H)-PYRAZINONE
Purity: 98%
Packaging: 100mg
Price: $72
Updated: 2026/05/28

aablocks

Product number: AA0084KC
Product name: 5-CHLORO-3-METHYL-2(1H)-PYRAZINONE
Purity: 98%
Packaging: 250mg
Price: $86
Updated: 2026/05/28