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1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid

Also known as: 1-METHYL-3-PROPYL-5-PYRAZOLE CARBOXYLIC ACID, 1-METHYL-3-PROPYLPYRAZOLE-5-CARBOXYLIC ACID, 2-METHYL-5-PROPYL-2H-PYRAZOLE-3-CARBOXYLIC ACID, 2-methyl-5-propylpyrazole-3-carboxylic acid, Methisosildenafil Impurity 14, MFCD02169703, ASINEX-REAG BAS 02107705, CHEMBRDG-BB 4402460, TIMTEC-BB SBB010494

1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid (CAS 139755-99-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H12N2O2 and a molecular weight of 168.19300 g/mol. Key properties include a boiling point of 330.3ºC at 760mmHg, a density of 1.19g/cm3 and a flash point of 153.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
139755-99-0
Jingsj CID
J-22848-8
Molecular Formula
C8H12N2O2
Molecular Weight
168.19300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point330.3ºC at 760mmHg
Density1.19g/cm3
Flash Point153.5ºC
Exact Mass168.09000
PSA55.12000
LogP1.07080
Vapor Pressure6.74E-05mmHg at 25°C

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-methyl-3-propyl-1H-pyrazole-5-carboxylic acid?

The CAS number of 1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid is 139755-99-0.

What are the molecular formula and molecular weight of 1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid?

1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid has molecular formula C8H12N2O2 and molecular weight 168.19300 g/mol.

What are the upstream and downstream products of 1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid?

For 1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid, Upstream Products: 1-Methyl-3-propyl-1H-pyrazole-5-carboxylic acid ethyl ester, Ethyl 2,4-dioxoheptanoate, Ethyl 3-n-propylpyrazole-5-carboxylate; Downstream Products: 4-[[2-Ethoxy-5-[(4-methyl-1-piperazinyl)sulfonyl]benzoyl]amino]-1-methyl-3-propyl-1H-pyrazole-5-carboxamide, 1-Methyl-4-nitro-3-propyl-(1H)-pyrazole-5-carboxamide, 4-[(2-Ethoxybenzoyl)amino]-1-methyl-3-propyl-1H-pyrazole-5-carboxamide.

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

Last updated:

How to cite: Jingsj. "1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid (CAS 139755-99-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22848-8 (accessed 2026-11-09).

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