2-Thioxo-2,3-dihydro-1H-pyrazolo[1,5-a][1,3,5]triazin-4-one

2-硫代-2,3-二氢吡唑并[1,5-a][1,3,5]三嗪-4(1H)-酮

Also known as: 2-Sulfanylidene-2,3-dihydro-1H-pyrazolo[1,5-a][1,3,5]triazin-4-one, 4-Oxo-2-thioxo-2,3-dihydro-1H-pyrazolo[1,5-a][1,3,5]triazine, 2-Thio-2,3-dihydro-1H-pyrazolo[1,5-a][1,3,5]triazin-4-one

2-Thioxo-2,3-dihydro-1H-pyrazolo[1,5-a][1,3,5]triazin-4-one (CAS 34682-99-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4N4OS and a molecular weight of 168.17600 g/mol. It is also known as 2-Sulfanylidene-2,3-dihydro-1H-pyrazolo[1,5-a][1,3,5]triazin-4-one, 4-Oxo-2-thioxo-2,3-dihydro-1H-pyrazolo[1,5-a][1,3,5]triazine and 2-Thio-2,3-dihydro-1H-pyrazolo[1,5-a][1,3,5]triazin-4-one. Key property: a density of 1.937g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
34682-99-0
Jingsj CID
J-1080989-5
Molecular Formula
C5H4N4OS
Chinese Name
2-硫代-2,3-二氢吡唑并[1,5-a][1,3,5]三嗪-4(1H)-酮
Molecular Weight
168.17600 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Density1.937g/cm3

Frequently Asked Questions

What is the CAS number of 2-Thioxo-2,3-dihydro-1H-pyrazolo[1,5-a][1,3,5]triazin-4-one?

The CAS number of 2-Thioxo-2,3-dihydro-1H-pyrazolo[1,5-a][1,3,5]triazin-4-one is 34682-99-0.

What are the molecular formula and molecular weight of 2-Thioxo-2,3-dihydro-1H-pyrazolo[1,5-a][1,3,5]triazin-4-one?

2-Thioxo-2,3-dihydro-1H-pyrazolo[1,5-a][1,3,5]triazin-4-one has molecular formula C5H4N4OS and molecular weight 168.17600 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Thioxo-2,3-dihydro-1H-pyrazolo[1,5-a][1,3,5]triazin-4-one (CAS 34682-99-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1080989-5 (accessed 2026-10-25).

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