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Methyl 3-(tert-butyl)-1H-pyrazole-4-carboxylate

Also known as: Methyl 3-(tert-butyl)-1H-pyrazole-4-carboxylate, Methyl 3(5)-t-butylpyrazole-4-carboxylate, 3-tert-Butyl-1H-pyrazole-4-carboxylic acid methyl ester, methyl 5-tert-butyl-1H-pyrazole-4-carboxylate, 1H-Pyrazole-4-carboxylic acid, 3-(1,1-dimethylethyl)-, methyl ester, Methyl 3(5)-tert-butylpyrazole-4-carboxylate, Methyl 3-tert-butyl-1H-pyrazole-4-carboxylate, Methyl 3-(2-methyl-2-propanyl)-1H-pyrazole-4-carboxylate

Methyl 3-(tert-butyl)-1H-pyrazole-4-carboxylate (CAS 1017782-45-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H14N2O2 and a molecular weight of 182.220 g/mol. Key properties include a melting point of 135-137°C, a boiling point of 319.1±30.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 146.8±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1017782-45-4
Jingsj CID
J-1113326-7
Molecular Formula
C9H14N2O2
Molecular Weight
182.220 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point135-137°C
Boiling Point319.1±30.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point146.8±24.6 °C
Exact Mass182.105530
PSA54.98000
LogP2.40
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.503

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 Methyl 3-(tert-butyl)-1H-pyrazole-4-carboxylate?

The CAS number of Methyl 3-(tert-butyl)-1H-pyrazole-4-carboxylate is 1017782-45-4.

What are the molecular formula and molecular weight of Methyl 3-(tert-butyl)-1H-pyrazole-4-carboxylate?

Methyl 3-(tert-butyl)-1H-pyrazole-4-carboxylate has molecular formula C9H14N2O2 and molecular weight 182.220 g/mol.

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

Last updated:

How to cite: Jingsj. "Methyl 3-(tert-butyl)-1H-pyrazole-4-carboxylate (CAS 1017782-45-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1113326-7 (accessed 2026-10-29).

Data for reference only; verify product details with suppliers before purchase.