5-Ethynyl-1H-pyrazolo[4,3-b]pyridine

5-乙炔基-1H-吡唑并[4,3-b]吡啶

Also known as: 5-Ethynyl-2H-pyrazolo[4,3-b]pyridine, 1H-Pyrazolo[4,3-b]pyridine, 5-ethynyl-, 5-Ethynyl-4-azaindazole, (1H-Pyrazolo[4,3-b]pyridin-5-yl)acetylene, MFCD22380512

5-Ethynyl-1H-pyrazolo[4,3-b]pyridine (CAS 1374652-56-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H5N3 and a molecular weight of 143.14500 g/mol. It is also known as 5-Ethynyl-2H-pyrazolo[4,3-b]pyridine, 1H-Pyrazolo[4,3-b]pyridine, 5-ethynyl- and 5-Ethynyl-4-azaindazole. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1374652-56-8
Jingsj CID: J-1514288-9
Molecular Formula: C₈H₅N₃
Chinese Name: 5-乙炔基-1H-吡唑并[4,3-b]吡啶
Molecular Weight: 143.14500 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 5-Ethynyl-1H-pyrazolo[4,3-b]pyridine?

The CAS number of 5-Ethynyl-1H-pyrazolo[4,3-b]pyridine is 1374652-56-8.

What are the molecular formula and molecular weight of 5-Ethynyl-1H-pyrazolo[4,3-b]pyridine?

5-Ethynyl-1H-pyrazolo[4,3-b]pyridine has molecular formula C8H5N3 and molecular weight 143.14500 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. "5-Ethynyl-1H-pyrazolo[4,3-b]pyridine (CAS 1374652-56-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1514288-9 (accessed 2026-10-25).

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