4,5,6-Triamino-2(1H)-pyrimidinethione

Also known as: 2-MERCAPTO-4,5,6-TRIAMINOPYRIMIDINE, 2(1H)-Pyrimidinethione, 4,5,6-triamino-, 4,5,6-Triamino-2-mercaptopyrimidine, 4,5,6-Triaminopyrimidine-2-thiol, 4,5,6-Triamino-1H-pyrimidine-2-thione, 4,5,6-triamino-2(1h)-pyrimidinethione, Nsc 45760, 2-thio-4,5,6-triaminopyrimidine, 4,5,6-TRIAMINO-PYRIMIDINE-2-THIOL

4,5,6-Triamino-2(1H)-pyrimidinethione (CAS 1073-99-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H7N5S and a molecular weight of 157.197 g/mol. Key properties include a boiling point of 281.5±50.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 124.0±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1073-99-0
Jingsj CID: J-41996-5
Molecular Formula: C₄H₇N₅S
Molecular Weight: 157.197 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point	281.5±50.0 °C at 760 mmHg
Density	2.0±0.1 g/cm3
Flash Point	124.0±30.1 °C
Exact Mass	157.042221
PSA	138.83000
LogP	-2.77
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.971

Customs & Trade Information

HS Code	2933599090
Summary	2933599090. 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 4,5,6-Triamino-2(1H)-pyrimidinethione?

The CAS number of 4,5,6-Triamino-2(1H)-pyrimidinethione is 1073-99-0.

What are the molecular formula and molecular weight of 4,5,6-Triamino-2(1H)-pyrimidinethione?

4,5,6-Triamino-2(1H)-pyrimidinethione has molecular formula C4H7N5S and molecular weight 157.197 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,5,6-Triamino-2(1H)-pyrimidinethione (CAS 1073-99-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-41996-5 (accessed 2026-11-09).

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