3-ethynyl-4-nitro-1H-pyrazole

3-乙炔基-4-硝基-1H-吡唑

3-ethynyl-4-nitro-1H-pyrazole (CAS 2228505-42-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3N3O2 and a molecular weight of 137.10 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2228505-42-6
Jingsj CID: J-580937-2
Molecular Formula: C₅H₃N₃O₂
Chinese Name: 3-乙炔基-4-硝基-1H-吡唑
Molecular Weight: 137.10 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 3-ethynyl-4-nitro-1H-pyrazole?

The CAS number of 3-ethynyl-4-nitro-1H-pyrazole is 2228505-42-6.

What are the molecular formula and molecular weight of 3-ethynyl-4-nitro-1H-pyrazole?

3-ethynyl-4-nitro-1H-pyrazole has molecular formula C5H3N3O2 and molecular weight 137.10 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "3-ethynyl-4-nitro-1H-pyrazole (CAS 2228505-42-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-580937-2 (accessed 2026-10-24).

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