3-(2-Thienyl)-1H-pyrazole

3-(2-噻吩基)-1H-吡唑

Also known as: 3-(2-thienyl)pyrazole, 5-(2-thienyl)-1H-pyrazole, 3-thiophen-2-yl-1H-pyrazole, 5-thiophen-2-yl-1H-pyrazole, 2-pyrazol-3-ylthiophene, AKOS BBS-00002515, BUTTPARK 15\07-57, IFLAB-BB F3250-0656, TIMTEC-BB SBB004070, MFCD00178757

3-(2-Thienyl)-1H-pyrazole (CAS 19933-24-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H6N2S and a molecular weight of 150.20100 g/mol. It is also known as 3-(2-thienyl)pyrazole, 5-(2-thienyl)-1H-pyrazole and 3-thiophen-2-yl-1H-pyrazole. Key properties include a melting point of 97-99 °C, a boiling point of 152 °C (1.6 mmHg), a density of 1.297g/cm3 and a flash point of 143.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19933-24-5
Jingsj CID
J-44181-8
Molecular Formula
C7H6N2S
Chinese Name
3-(2-噻吩基)-1H-吡唑
Molecular Weight
150.20100 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point97-99 °C
Boiling Point152 °C (1.6 mmHg)
Density1.297g/cm3
Flash Point143.4ºC

Frequently Asked Questions

What is the CAS number of 3-(2-Thienyl)-1H-pyrazole?

The CAS number of 3-(2-Thienyl)-1H-pyrazole is 19933-24-5.

What are the molecular formula and molecular weight of 3-(2-Thienyl)-1H-pyrazole?

3-(2-Thienyl)-1H-pyrazole has molecular formula C7H6N2S and molecular weight 150.20100 g/mol.

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

Last updated:

How to cite: Jingsj. "3-(2-Thienyl)-1H-pyrazole (CAS 19933-24-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44181-8 (accessed 2026-10-22).

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