4-Hydrazino-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine

4-肼基-6,7-二氢-5H-环戊[4,5]噻吩并[2,3-d]嘧啶

Also known as: (2,3-dihydro-1H-8-thia-5,7-diaza-cyclopenta[a]inden-4-yl)-hydrazine, 4-Hydrazinyl-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine, 5H-Cyclopenta[4,5]thieno[2,3-d]pyrimidine, 4-hydrazino-6,7-dihydro-, 5H-Cyclopenta[4,5]thieno[2,3-d]pyrimidine, 4-hydrazinyl-6,7-dihydro-, AKOS BBV-000997, CHEMBRDG-BB 4004603

4-Hydrazino-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine (CAS 303798-10-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H10N4S and a molecular weight of 206.26700 g/mol. It is also known as (2,3-dihydro-1H-8-thia-5,7-diaza-cyclopenta[a]inden-4-yl)-hydrazine, 4-Hydrazinyl-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine and 5H-Cyclopenta[4,5]thieno[2,3-d]pyrimidine, 4-hydrazino-6,7-dihydro-. Key properties include a boiling point of 460.4ºC at 760 mmHg, a density of 1.525g/cm3 and a flash point of 232.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
303798-10-9
Jingsj CID
J-1504779-3
Molecular Formula
C9H10N4S
Chinese Name
4-肼基-6,7-二氢-5H-环戊[4,5]噻吩并[2,3-d]嘧啶
Molecular Weight
206.26700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point460.4ºC at 760 mmHg
Density1.525g/cm3
Flash Point232.3ºC

Frequently Asked Questions

What is the CAS number of 4-Hydrazino-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine?

The CAS number of 4-Hydrazino-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine is 303798-10-9.

What are the molecular formula and molecular weight of 4-Hydrazino-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine?

4-Hydrazino-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine has molecular formula C9H10N4S and molecular weight 206.26700 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Hydrazino-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine (CAS 303798-10-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1504779-3 (accessed 2026-10-24).

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