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2-(Methylthio)pyrimidine-4,6-diamine

Also known as: 4,6-Diamino-2-(methylthio)pyrimidine, 2-Methylthio-4,6-diaminopyrimidine, 4,6-Diamino-2-methylmercaptopyrimidine, 2-Methylsulfanyl-4,6-pyrimidinediamine, 6-Amino-2-(methylthio)-4-pyrimidinylamine

2-(Methylthio)pyrimidine-4,6-diamine (CAS 1005-39-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H8N4S and a molecular weight of 156.20900 g/mol. Key properties include a melting point of 189-193ºC, a boiling point of 413.5ºC at 760mmHg, a density of 1.38g/cm3 and a flash point of 203.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1005-39-6
Jingsj CID
J-12556-4
Molecular Formula
C5H8N4S
Molecular Weight
156.20900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point189-193ºC
Boiling Point413.5ºC at 760mmHg
Density1.38g/cm3
Flash Point203.9ºC
Exact Mass156.04700
PSA103.12000
LogP1.52530
Vapor Pressure0mmHg at 25°C
Refractive Index1.671

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 2-(Methylthio)pyrimidine-4,6-diamine?

The CAS number of 2-(Methylthio)pyrimidine-4,6-diamine is 1005-39-6.

What are the molecular formula and molecular weight of 2-(Methylthio)pyrimidine-4,6-diamine?

2-(Methylthio)pyrimidine-4,6-diamine has molecular formula C5H8N4S and molecular weight 156.20900 g/mol.

What are the upstream and downstream products of 2-(Methylthio)pyrimidine-4,6-diamine?

For 2-(Methylthio)pyrimidine-4,6-diamine, Upstream Products: 4,6-Diamino-2-mercaptopyrimidine, iodomethane; Downstream Products: 4,6-Diamino-2-pyrimidinol, Barbituric acid.

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

Last updated:

How to cite: Jingsj. "2-(Methylthio)pyrimidine-4,6-diamine (CAS 1005-39-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12556-4 (accessed 2026-11-09).

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