1-Methyl-1H-pyrazole-5-carbonyl chloride

Modify Date: 2025-08-25 18:13:16

1-Methyl-1H-pyrazole-5-carbonyl chloride Structure
1-Methyl-1H-pyrazole-5-carbonyl chloride structure
Common Name 1-Methyl-1H-pyrazole-5-carbonyl chloride
CAS Number 84547-59-1 Molecular Weight 144.55900
Density 1.37g/cm3 Boiling Point 226.6ºC at 760 mmHg
Molecular Formula C5H5ClN2O Melting Point N/A
MSDS N/A Flash Point 90.8ºC

 Names

Name 2-methylpyrazole-3-carbonyl chloride
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.37g/cm3
Boiling Point 226.6ºC at 760 mmHg
Molecular Formula C5H5ClN2O
Molecular Weight 144.55900
Flash Point 90.8ºC
Exact Mass 144.00900
PSA 34.89000
LogP 0.79910
Index of Refraction 1.584

 Safety Information

Hazard Codes C: Corrosive;
HS Code 2933199090

 Synthetic Route

~99%

1-Methyl-1H-pyrazole-5-carbonyl chloride Structure

1-Methyl-1H-pyr...

CAS#:84547-59-1

Literature: Takeda Pharmaceutical Company Limited Patent: EP2530078 A1, 2012 ; Location in patent: Page/Page column 72 ;

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1-Methyl-1H-pyrazole-5-carbonyl chloride Structure

1-Methyl-1H-pyr...

CAS#:84547-59-1

Literature: Bioorganic and Medicinal Chemistry, , vol. 21, # 15 p. 4714 - 4729

 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%

 Synonyms

2-Methyl-2H-pyrazole-3-carbonyl chloride
1-methylpyrazole-5-carbonyl chloride
1-Methylpyrazol-5-oylchloride
1-methyl-1H-pyrazole-5-carbonylchloride
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