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6-Ethyl-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone

Also known as: 6-Ethyl-2-thiouracil, 6-Ethyl-4-hydroxy-2-mercaptopyrimidine, 6-Ethyl-2-mercaptopyrimidin-4(3H)-one, 6-Ethyl-2-sulfanylidene-1H-pyrimidin-4-one, 4(1H)-Pyrimidinone, 6-ethyl-2,3-dihydro-2-thioxo-, 6-Ethyl-2-thioxo-2,3-dihydro-1H-pyrimidin-4-one

6-Ethyl-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone (CAS 53939-83-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H8N2OS and a molecular weight of 156.20600 g/mol. Key properties include a melting point of 228-230ºC, a boiling point of 244.2ºC at 760 mmHg, a density of 1.29g/cm3 and a flash point of 101.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
53939-83-6
Jingsj CID
J-1063577-5
Molecular Formula
C6H8N2OS
Molecular Weight
156.20600 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point228-230ºC
Boiling Point244.2ºC at 760 mmHg
Density1.29g/cm3
Flash Point101.5ºC
Exact Mass156.03600
PSA84.81000
LogP1.03330
Refractive Index1.613

Customs & Trade Information

HS Code2933599090
Summary2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 6-Ethyl-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone?

The CAS number of 6-Ethyl-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone is 53939-83-6.

What are the molecular formula and molecular weight of 6-Ethyl-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone?

6-Ethyl-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone has molecular formula C6H8N2OS and molecular weight 156.20600 g/mol.

What are the upstream and downstream products of 6-Ethyl-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone?

For 6-Ethyl-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone, Upstream Products: Ethyl 3-oxovalerate; Downstream Products: 4-Chloro-6-ethyl-5-iodopyrimidine, 6-Ethylpyrimidin-4(1H)-one, 6-ethylpyrimidine-2,4(1H,3H)-dione.

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

Last updated:

How to cite: Jingsj. "6-Ethyl-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone (CAS 53939-83-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1063577-5 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.