![Molecular structure of 4-Mercapto-1H-pyrazolo[3,4-d]pyrimidine (CAS 5334-23-6)](/images/chem_structures_svg/420/5334-23-6.svg)
4-Mercapto-1H-pyrazolo[3,4-d]pyrimidine
Also known as: 1H-Pyrazolo[3,4-d]pyrimidine-4-thiol, 4-Mercaptopyrazolo[3,4-d]pyrimidine, Tisopurine, Thiopurinol, 1,5-Dihydro-4H-pyrazolo[3,4-d]pyrimidine-4-thione, Mercaptopyrazolepyrimidine, 4H-Pyrazolo[3,4-d]pyrimidine-4-thione,1,5-dihydro-, 1,2-Dihydropyrazolo[3,4-d]pyrimidine-4-thione, NSC 1392
4-Mercapto-1H-pyrazolo[3,4-d]pyrimidine (CAS 5334-23-6) 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. Key properties include a melting point of 300ºC, a boiling point of 386.8ºC at 760 mmHg and a flash point of 187.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5334-23-6
- Jingsj CID
- J-19632-7
- Molecular Formula
- C5H4N4S
- Molecular Weight
- 152.17700 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 300ºC |
|---|---|
| Boiling Point | 386.8ºC at 760 mmHg |
| Flash Point | 187.7ºC |
| Exact Mass | 152.01600 |
| PSA | 93.26000 |
| LogP | 0.64160 |
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 4-Mercapto-1H-pyrazolo[3,4-d]pyrimidine?
The CAS number of 4-Mercapto-1H-pyrazolo[3,4-d]pyrimidine is 5334-23-6.
What are the molecular formula and molecular weight of 4-Mercapto-1H-pyrazolo[3,4-d]pyrimidine?
4-Mercapto-1H-pyrazolo[3,4-d]pyrimidine has molecular formula C5H4N4S and molecular weight 152.17700 g/mol.
What are the upstream and downstream products of 4-Mercapto-1H-pyrazolo[3,4-d]pyrimidine?
For 4-Mercapto-1H-pyrazolo[3,4-d]pyrimidine, Upstream Products: Allopurinol, 4-Chloro-1H-pyrazolo[3,4-d]pyrimidine; Downstream Products: 4-(methylthio)-1H-pyrazolo[3,4-d]pyrimidine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Mercapto-1H-pyrazolo[3,4-d]pyrimidine (CAS 5334-23-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19632-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.