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4,5-Diamino-6-hydroxy-2-mercaptopyrimidine hemisulfate salt hydrate

4,5-二氨基-6-羟基-2-巯基嘧啶半硫酸盐水合物

Also known as: 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine hemisulfate salt hydrate 97%, 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine hydrate hemisulfate salt, 5,6-Diamino-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone sulfate hydrate (2:1:2), MFCD00191981

4,5-Diamino-6-hydroxy-2-mercaptopyrimidine hemisulfate salt hydrate (CAS 304851-89-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H10N4O6S2 and a molecular weight of 274.27500 g/mol. It is also known as 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine hemisulfate salt hydrate 97%, 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine hydrate hemisulfate salt and 5,6-Diamino-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone sulfate hydrate (2:1:2). Key properties include a melting point of 235ºC (dec.)(lit.), a boiling point of 558.4ºC at 760 mmHg and a flash point of 291.5ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
304851-89-6
Jingsj CID
J-13512-2
Molecular Formula
C4H10N4O6S2
Chinese Name
4,5-二氨基-6-羟基-2-巯基嘧啶半硫酸盐水合物
Molecular Weight
274.27500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point235ºC (dec.)(lit.)
Boiling Point558.4ºC at 760 mmHg
Flash Point291.5ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine hemisulfate salt hydrate?

The CAS number of 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine hemisulfate salt hydrate is 304851-89-6.

What are the molecular formula and molecular weight of 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine hemisulfate salt hydrate?

4,5-Diamino-6-hydroxy-2-mercaptopyrimidine hemisulfate salt hydrate has molecular formula C4H10N4O6S2 and molecular weight 274.27500 g/mol.

Is 4,5-Diamino-6-hydroxy-2-mercaptopyrimidine hemisulfate salt hydrate hazardous?

4,5-Diamino-6-hydroxy-2-mercaptopyrimidine hemisulfate salt hydrate has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "4,5-Diamino-6-hydroxy-2-mercaptopyrimidine hemisulfate salt hydrate (CAS 304851-89-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13512-2 (accessed 2026-10-23).

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