ethyl 5-sulfanyl[1,2,3]triazolo[1,5-a]quinazoline-3-carboxylate

5-巯基[1,2,3]三唑并[1,5-a]喹唑啉-3-羧酸乙酯

Also known as: ethyl 5-mercapto-[1,2,3]triazolo[1,5-a]quinazoline-3-carboxylate, ethyl 5-sulfanylidene-1H-triazolo[1,5-a]quinazoline-3-carboxylate, [1,2,3]triazolo[1,5-a]quinazoline-3-carboxylic acid, 4,5-dihydro-5-thioxo-, ethyl ester, HMS1664O20, BUTTPARK 134\40-40

ethyl 5-sulfanyl[1,2,3]triazolo[1,5-a]quinazoline-3-carboxylate (CAS 519056-58-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H10N4O2S and a molecular weight of 274.29800 g/mol. It is also known as ethyl 5-mercapto-[1,2,3]triazolo[1,5-a]quinazoline-3-carboxylate, ethyl 5-sulfanylidene-1H-triazolo[1,5-a]quinazoline-3-carboxylate and [1,2,3]triazolo[1,5-a]quinazoline-3-carboxylic acid, 4,5-dihydro-5-thioxo-, ethyl ester. Key properties include a melting point of 171ºC and a density of 1.55g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
519056-58-7
Jingsj CID
J-1337723-6
Molecular Formula
C12H10N4O2S
Chinese Name
5-巯基[1,2,3]三唑并[1,5-a]喹唑啉-3-羧酸乙酯
Molecular Weight
274.29800 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point171ºC
Density1.55g/cm3

Frequently Asked Questions

What is the CAS number of ethyl 5-sulfanyl[1,2,3]triazolo[1,5-a]quinazoline-3-carboxylate?

The CAS number of ethyl 5-sulfanyl[1,2,3]triazolo[1,5-a]quinazoline-3-carboxylate is 519056-58-7.

What are the molecular formula and molecular weight of ethyl 5-sulfanyl[1,2,3]triazolo[1,5-a]quinazoline-3-carboxylate?

ethyl 5-sulfanyl[1,2,3]triazolo[1,5-a]quinazoline-3-carboxylate has molecular formula C12H10N4O2S and molecular weight 274.29800 g/mol.

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

Last updated:

How to cite: Jingsj. "ethyl 5-sulfanyl[1,2,3]triazolo[1,5-a]quinazoline-3-carboxylate (CAS 519056-58-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1337723-6 (accessed 2026-10-26).

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