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3,4,5-Tribromo-1H-pyrazole

Also known as: 3,4,5-Tribromopyrazole, 3,4,5-Tribromopyrazol, 1H-Pyrazole, 3,4,5-tribromo-, 3,4,5-TRIBROMO-1H-PYRAZOLE, MFCD00040248

3,4,5-Tribromo-1H-pyrazole (CAS 17635-44-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3HBr3N2 and a molecular weight of 304.765 g/mol. Key properties include a melting point of 190-192°C, a boiling point of 381.5±37.0 °C at 760 mmHg, a density of 2.8±0.1 g/cm3 and a flash point of 184.5±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17635-44-8
Jingsj CID
J-39229-0
Molecular Formula
C3HBr3N2
Molecular Weight
304.765 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point190-192°C
Boiling Point381.5±37.0 °C at 760 mmHg
Density2.8±0.1 g/cm3
Flash Point184.5±26.5 °C
Exact Mass301.768951
PSA28.68000
LogP3.27
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.690

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 3,4,5-Tribromo-1H-pyrazole?

The CAS number of 3,4,5-Tribromo-1H-pyrazole is 17635-44-8.

What are the molecular formula and molecular weight of 3,4,5-Tribromo-1H-pyrazole?

3,4,5-Tribromo-1H-pyrazole has molecular formula C3HBr3N2 and molecular weight 304.765 g/mol.

What are the upstream and downstream products of 3,4,5-Tribromo-1H-pyrazole?

For 3,4,5-Tribromo-1H-pyrazole, Upstream Products: Pyrazole, 1H-Pyrazole-3-carboxylic acid, 3,4,5-Tribromo-1-nitro-1H-pyrazole; Downstream Products: 3,4-Dibromo-5-nitro-1H-pyrazole, 3,4,5-Tribromo-1-nitro-1H-pyrazole, 3,5-Dibromo-4-nitro-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. "3,4,5-Tribromo-1H-pyrazole (CAS 17635-44-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39229-0 (accessed 2026-11-09).

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