1,5,7,8-Tetrahydro-2-methyl-4H-thiopyrano[4,3-d]pyrimidin-4-one

3,5,7,8-四氢-2-甲基-4H-硫代吡喃并[4,3-D]嘧啶-4-酮

Also known as: DR 2313, 1,5,7,8-TETRAHYDRO-2-METHYL-4H-THIOPYRANO[4,3-D]PYRIMIDIN-4-ONE, 7,8-Dihydro-2-methyl-1H-thiopyrano[4,3-d]pyrimidin-4(5H)-one, 2-Methyl-1,5,7,8-tetrahydro-4H-thiopyrano[4,3-d]pyrimidin-4-one, 2-methyl-3,5,7,8-tetrahydrothiopyrano(4,3-d)pyrimidine-4-one, 4H-Thiopyrano[4,3-d]pyrimidin-4-one, 1,5,7,8-tetrahydro-2-methyl-, SC-202756

1,5,7,8-Tetrahydro-2-methyl-4H-thiopyrano[4,3-d]pyrimidin-4-one (CAS 284028-90-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H10N2OS and a molecular weight of 182.243 g/mol. It is also known as DR 2313, 1,5,7,8-TETRAHYDRO-2-METHYL-4H-THIOPYRANO[4,3-D]PYRIMIDIN-4-ONE and 7,8-Dihydro-2-methyl-1H-thiopyrano[4,3-d]pyrimidin-4(5H)-one. Key properties include a boiling point of 349.3±52.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 165.0±30.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
284028-90-6
Jingsj CID
J-1975829-1
Molecular Formula
C8H10N2OS
Chinese Name
3,5,7,8-四氢-2-甲基-4H-硫代吡喃并[4,3-D]嘧啶-4-酮
Molecular Weight
182.243 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point349.3±52.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point165.0±30.7 °C

Frequently Asked Questions

What is the CAS number of 1,5,7,8-Tetrahydro-2-methyl-4H-thiopyrano[4,3-d]pyrimidin-4-one?

The CAS number of 1,5,7,8-Tetrahydro-2-methyl-4H-thiopyrano[4,3-d]pyrimidin-4-one is 284028-90-6.

What are the molecular formula and molecular weight of 1,5,7,8-Tetrahydro-2-methyl-4H-thiopyrano[4,3-d]pyrimidin-4-one?

1,5,7,8-Tetrahydro-2-methyl-4H-thiopyrano[4,3-d]pyrimidin-4-one has molecular formula C8H10N2OS and molecular weight 182.243 g/mol.

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

Last updated:

How to cite: Jingsj. "1,5,7,8-Tetrahydro-2-methyl-4H-thiopyrano[4,3-d]pyrimidin-4-one (CAS 284028-90-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1975829-1 (accessed 2026-10-25).

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