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. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed and H318 — Causes serious eye damage. 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
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 498.6ºC at 760mmHg |
|---|---|
| Density | 1.82g/cm3 |
| Flash Point | 255.4ºC |
| Exact Mass | 152.01600 |
| PSA | 93.26000 |
| LogP | 0.64160 |
| Vapor Pressure | 0.0119mmHg at 25°C |
| Refractive Index | 1.941 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H318 — Causes serious eye damage
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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-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 and hazard statements H302 — Harmful if swallowed; H318 — Causes serious eye damage.
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 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.