1-(tert-Butyl)-3-methyl-1H-pyrazole-5-carboxylic acid

1-(叔丁基)-3-甲基-1H-吡唑-5-羧酸

Also known as: 1-tert-Butyl-3-methyl-1H-pyrazole-5-carboxylic acid, 1H-Pyrazole-5-carboxylic acid, 1-(1,1-dimethylethyl)-3-methyl-, 2-tert-Butyl-5-methylpyrazole-3-carboxylic acid, 2-tert-Butyl-5-methyl-3-pyrazolecarboxylic acid, 1-(1,1-Dimethylethyl)-3-methyl-1H-pyrazole-5-carboxylic acid, BUTTPARK 92\18-70

1-(tert-Butyl)-3-methyl-1H-pyrazole-5-carboxylic acid (CAS 175277-09-5) 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 182.22000 g/mol. It is also known as 1-tert-Butyl-3-methyl-1H-pyrazole-5-carboxylic acid, 1H-Pyrazole-5-carboxylic acid, 1-(1,1-dimethylethyl)-3-methyl- and 2-tert-Butyl-5-methylpyrazole-3-carboxylic acid. Key properties include a melting point of 149ºC, a boiling point of 313.9ºC at 760mmHg, a density of 1.13g/cm3 and a flash point of 143.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
175277-09-5
Jingsj CID
J-1371061-9
Molecular Formula
C9H14N2O2
Chinese Name
1-(叔丁基)-3-甲基-1H-吡唑-5-羧酸
Molecular Weight
182.22000 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point149ºC
Boiling Point313.9ºC at 760mmHg
Density1.13g/cm3
Flash Point143.7ºC

Frequently Asked Questions

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

The CAS number of 1-(tert-Butyl)-3-methyl-1H-pyrazole-5-carboxylic acid is 175277-09-5.

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

1-(tert-Butyl)-3-methyl-1H-pyrazole-5-carboxylic acid has molecular formula C9H14N2O2 and molecular weight 182.22000 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)-3-methyl-1H-pyrazole-5-carboxylic acid (CAS 175277-09-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1371061-9 (accessed 2026-10-25).

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