1-(tert-Butyl)-5-methyl-1H-pyrazole-3-carbonyl chloride

1-叔丁基-5-甲基-1H-吡唑-3-羰酰氯

Also known as: 1-tert-butyl-5-methyl-1H-pyrazole-3-carbonyl chloride, 1-tert-butyl-5-methylpyrazole-3-carbonyl chloride, 1H-Pyrazole-3-carbonyl chloride, 1-(1,1-dimethylethyl)-5-methyl-

1-(tert-Butyl)-5-methyl-1H-pyrazole-3-carbonyl chloride (CAS 306936-94-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H13ClN2O and a molecular weight of 200.66500 g/mol. It is also known as 1-tert-butyl-5-methyl-1H-pyrazole-3-carbonyl chloride, 1-tert-butyl-5-methylpyrazole-3-carbonyl chloride and 1H-Pyrazole-3-carbonyl chloride, 1-(1,1-dimethylethyl)-5-methyl-. Key properties include a boiling point of 279.6ºC at 760mmHg, a density of 1.16g/cm3 and a flash point of 122.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
306936-94-7
Jingsj CID
J-1524108-1
Molecular Formula
C9H13ClN2O
Chinese Name
1-叔丁基-5-甲基-1H-吡唑-3-羰酰氯
Molecular Weight
200.66500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point279.6ºC at 760mmHg
Density1.16g/cm3
Flash Point122.9ºC
Exact Mass200.07200
PSA34.89000
LogP2.32550
Refractive Index1.533

Customs & Trade Information

HS Code2933199090
Summary2933199090. 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%

Frequently Asked Questions

What is the CAS number of 1-(tert-Butyl)-5-methyl-1H-pyrazole-3-carbonyl chloride?

The CAS number of 1-(tert-Butyl)-5-methyl-1H-pyrazole-3-carbonyl chloride is 306936-94-7.

What are the molecular formula and molecular weight of 1-(tert-Butyl)-5-methyl-1H-pyrazole-3-carbonyl chloride?

1-(tert-Butyl)-5-methyl-1H-pyrazole-3-carbonyl chloride has molecular formula C9H13ClN2O and molecular weight 200.66500 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1-(tert-Butyl)-5-methyl-1H-pyrazole-3-carbonyl chloride (CAS 306936-94-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1524108-1 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.