Allopurinol
Also known as: 4-Hydroxypyrazolo[3,4-d]pyrimidine, 1H-Pyrazolo[3,4-d]pyrimidin-4-ol, 1,5-Dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one, Zyloprim, Zyloric, Caplenal, HPP, Adenock
Allopurinol (CAS 315-30-0) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C5H4N4O and a molecular weight of 136.111 g/mol. Key properties include a melting point of 350 ºC, a boiling point of 290.8ºC at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 129.7ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 315-30-0
- Jingsj CID
- J-11409-5
- Molecular Formula
- C5H4N4O
- Molecular Weight
- 136.111 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 350 ºC |
|---|---|
| Boiling Point | 290.8ºC at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 129.7ºC |
| Exact Mass | 136.038513 |
| PSA | 74.43000 |
| LogP | -1.46 |
| Refractive Index | 1.816 |
| Additional Property | 0.35 g/L (25 ºC) |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H317 — May cause an allergic skin reaction
Activity & Biological Data
| Additional Information | [1]. Pacher P, et al. Therapeutic effects of xanthine oxidase inhibitors: renaissance half a century after the discovery of allopurinol. Pharmacol Rev. 2006 Mar;58(1):87-114. [2]. Reiter S, et al. Demonstration of a combined deficiency of xanthine oxidase and aldehyde oxidase in xanthinuric patients not forming oxipurinol. Clin Chim Acta. 1990 Mar 15;187(3):221-34. |
|---|
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 Allopurinol?
The CAS number of Allopurinol is 315-30-0.
What are the molecular formula and molecular weight of Allopurinol?
Allopurinol has molecular formula C5H4N4O and molecular weight 136.111 g/mol.
Is Allopurinol hazardous?
Allopurinol has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H317 — May cause an allergic skin reaction.
What are the upstream and downstream products of Allopurinol?
For Allopurinol, Upstream Products: 1,5-Dihydro-3-(methylthio)-4H-pyrazolo[3,4-d]pyrimidin-4-one; Downstream Products: 3-Bromo-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one, 3-Iodo-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one, 4-Chloro-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. "Allopurinol (CAS 315-30-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11409-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.