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2,5-Dimethyl-4-nitro-2H-pyrazole-3-carboxylic acid

Also known as: 1,3-Dimethyl-4-nitro-1H-pyrazole-5-carboxylic acid, 1,3-Dimethyl-4-nitropyrazole-5-carboxylic acid, 2,5-Dimethyl-4-nitropyrazole-3-carboxylic acid

2,5-Dimethyl-4-nitro-2H-pyrazole-3-carboxylic acid (CAS 3920-37-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H7N3O4 and a molecular weight of 185.13700 g/mol. Key properties include a boiling point of 379.432ºC at 760 mmHg and a density of 1.619 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3920-37-4
Jingsj CID
J-1488417-4
Molecular Formula
C6H7N3O4
Molecular Weight
185.13700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point379.432ºC at 760 mmHg
Density1.619 g/cm3
Exact Mass185.04400
PSA100.94000
LogP0.85810

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 2,5-Dimethyl-4-nitro-2H-pyrazole-3-carboxylic acid?

The CAS number of 2,5-Dimethyl-4-nitro-2H-pyrazole-3-carboxylic acid is 3920-37-4.

What are the molecular formula and molecular weight of 2,5-Dimethyl-4-nitro-2H-pyrazole-3-carboxylic acid?

2,5-Dimethyl-4-nitro-2H-pyrazole-3-carboxylic acid has molecular formula C6H7N3O4 and molecular weight 185.13700 g/mol.

What are the upstream and downstream products of 2,5-Dimethyl-4-nitro-2H-pyrazole-3-carboxylic acid?

For 2,5-Dimethyl-4-nitro-2H-pyrazole-3-carboxylic acid, Upstream Products: 1,3-Dimethyl-1H-pyrazole-5-carboxylic acid, methyl 1,3-dimethyl-4-nitro-1H-pyrazole-5-carboxylate.

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

Last updated:

How to cite: Jingsj. "2,5-Dimethyl-4-nitro-2H-pyrazole-3-carboxylic acid (CAS 3920-37-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1488417-4 (accessed 2026-11-09).

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