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
InChIKey JJMGMMBYVVRVHI-UHFFFAOYSA-N
SMILES Cn1nccc1C(=O)Cl

 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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