2-Mercaptopurine

2-巯基嘌呤

Also known as: 2-Mercaptopurine, 2-Thiopurine, 1H-Purine-2-thiol, 1,3-dihydro-2H-purine-2-thione, 3,9-dihydro-2H-purine-2-thione, 2-Purinethiol, 2-Mercapto-9H-purine, 7H-Purine-2-thiol, 9H-Purine-2-thiol, 2-mercaptopurin

2-Mercaptopurine (CAS 28128-19-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4N4S and a molecular weight of 152.17700 g/mol. It is also known as 2-Thiopurine, 1H-Purine-2-thiol and 1,3-dihydro-2H-purine-2-thione. Key properties include a boiling point of 498.6ºC at 760mmHg, a density of 1.82g/cm3 and a flash point of 255.4ºC. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
28128-19-0
Jingsj CID
J-1510289-6
Molecular Formula
C5H4N4S
Chinese Name
2-巯基嘌呤
Molecular Weight
152.17700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point498.6ºC at 760mmHg
Density1.82g/cm3
Flash Point255.4ºC

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of 2-Mercaptopurine?

The CAS number of 2-Mercaptopurine is 28128-19-0.

What are the molecular formula and molecular weight of 2-Mercaptopurine?

2-Mercaptopurine has molecular formula C5H4N4S and molecular weight 152.17700 g/mol.

Is 2-Mercaptopurine hazardous?

2-Mercaptopurine has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "2-Mercaptopurine (CAS 28128-19-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1510289-6 (accessed 2026-10-26).

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