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4-Iodo-1H-pyrazole-3-carboxylic acid

Also known as: 1H-Pyrazole-3-carboxylic acid, 4-iodo-, 4-iodo-1H-pyrazole-5-carboxylic acid, 4-IODO-PYRAZOLE-3-CARBOXYLIC ACID, 4-Iod-pyrazol-3-carbonsaeure, 4-iodo-2H-pyrazole-3-carboxylic acid, 4-iodopyrazole-3(5)-carboxylic acid

4-Iodo-1H-pyrazole-3-carboxylic acid (CAS 6647-93-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3IN2O2 and a molecular weight of 237.983 g/mol. Key properties include a boiling point of 456.0±30.0 °C at 760 mmHg, a density of 2.5±0.1 g/cm3 and a flash point of 229.6±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6647-93-4
Jingsj CID
J-1118526-5
Molecular Formula
C4H3IN2O2
Molecular Weight
237.983 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point456.0±30.0 °C at 760 mmHg
Density2.5±0.1 g/cm3
Flash Point229.6±24.6 °C
Exact Mass237.923904
PSA65.98000
LogP0.41
Vapor Pressure0.0±1.2 mmHg at 25°C
Refractive Index1.742
Storage Conditions2-8°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 4-Iodo-1H-pyrazole-3-carboxylic acid?

The CAS number of 4-Iodo-1H-pyrazole-3-carboxylic acid is 6647-93-4.

What are the molecular formula and molecular weight of 4-Iodo-1H-pyrazole-3-carboxylic acid?

4-Iodo-1H-pyrazole-3-carboxylic acid has molecular formula C4H3IN2O2 and molecular weight 237.983 g/mol.

What are the upstream and downstream products of 4-Iodo-1H-pyrazole-3-carboxylic acid?

For 4-Iodo-1H-pyrazole-3-carboxylic acid, Upstream Products: 1H-Pyrazole-3-carboxylic acid, 3-Methyl-4-iodopyrazole, 4-Iodo-3,5-dimethyl-1H-pyrazole.

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

Last updated:

How to cite: Jingsj. "4-Iodo-1H-pyrazole-3-carboxylic acid (CAS 6647-93-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1118526-5 (accessed 2026-11-09).

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