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

3,4,5-三甲基-1H-吡唑

Also known as: 1H-Pyrazole, 3,4,5-trimethyl-, 3,4,5-TRIMETHYL-1H-PYRAZOLE, 3,4,5-Trimethyl-1H-pyrazole AldrichCPR, 3,4,5-Trimethylpyrazole, 3,4,5-trimethyl-1H-pyrazole(SALTDATA: FREE)

3,4,5-Trimethyl-1H-pyrazole (CAS 5519-42-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H10N2 and a molecular weight of 110.157 g/mol. It is also known as 1H-Pyrazole, 3,4,5-trimethyl-, 3,4,5-TRIMETHYL-1H-PYRAZOLE and 3,4,5-Trimethyl-1H-pyrazole AldrichCPR. Key properties include a boiling point of 240.5±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 107.2±11.7 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5519-42-6
Jingsj CID
J-1035107-7
Molecular Formula
C6H10N2
Chinese Name
3,4,5-三甲基-1H-吡唑
Molecular Weight
110.157 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point240.5±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point107.2±11.7 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 3,4,5-Trimethyl-1H-pyrazole?

The CAS number of 3,4,5-Trimethyl-1H-pyrazole is 5519-42-6.

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

3,4,5-Trimethyl-1H-pyrazole has molecular formula C6H10N2 and molecular weight 110.157 g/mol.

Is 3,4,5-Trimethyl-1H-pyrazole hazardous?

3,4,5-Trimethyl-1H-pyrazole has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "3,4,5-Trimethyl-1H-pyrazole (CAS 5519-42-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1035107-7 (accessed 2026-10-22).

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