3-Amino-2,7-dimethyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one

3-氨基-2,7-二甲基-5,6,7,8-四氢-[1]苯并噻吩并[2,3-d]嘧啶-4(3H)-酮

Also known as: 3-Amino-2,7-dimethyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one, BAS 00727695, BRN 5958703, Benzothieno(2,3-d)pyrimidin-4(3H)-one, 5,6,7,8-tetrahydro-3-amino-2,7-dimethyl-, Oprea1_031247, Oprea1_125412

3-Amino-2,7-dimethyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one (CAS 120354-21-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H15N3OS and a molecular weight of 249.33200 g/mol. It is also known as 3-Amino-2,7-dimethyl-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one, BAS 00727695 and BRN 5958703. Key properties include a boiling point of 467.6ºC at 760 mmHg, a density of 1.53g/cm3 and a flash point of 236.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
120354-21-4
Jingsj CID
J-1307944-8
Molecular Formula
C12H15N3OS
Chinese Name
3-氨基-2,7-二甲基-5,6,7,8-四氢-[1]苯并噻吩并[2,3-d]嘧啶-4(3H)-酮
Molecular Weight
249.33200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point467.6ºC at 760 mmHg
Density1.53g/cm3
Flash Point236.6ºC

Frequently Asked Questions

What is the CAS number of 3-Amino-2,7-dimethyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one?

The CAS number of 3-Amino-2,7-dimethyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one is 120354-21-4.

What are the molecular formula and molecular weight of 3-Amino-2,7-dimethyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one?

3-Amino-2,7-dimethyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one has molecular formula C12H15N3OS and molecular weight 249.33200 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Amino-2,7-dimethyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one (CAS 120354-21-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1307944-8 (accessed 2026-10-25).

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