4-Hydroxy-1-phenylpyrazolo[3,4-d]pyrimidine

Also known as: 1-Phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-ol, 4H-Pyrazolo[3,4-d]pyrimidin-4-one,1,5-dihydro-1-phenyl-, 1-Phenyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one, 1-Phenyl-1H-pyrazolo[3,4-d]pyrimidine-4(5H)-one, 1-Phenyl-4-hydroxy-1H-pyrazolo[3,4-d]pyrimidine, 4-Hydroxy-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine, 1-Phenylallopurinol, NSC 3954, EINECS 244-331-0, MFCD00082637

4-Hydroxy-1-phenylpyrazolo[3,4-d]pyrimidine (CAS 21314-17-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H8N4O and a molecular weight of 212.20700 g/mol. Key properties include a melting point of 304-307 °C, a boiling point of 472.508ºC at 760 mmHg, a density of 1.45g/cm3 and a flash point of 239.565ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 21314-17-0
Jingsj CID: J-45217-5
Molecular Formula: C₁₁H₈N₄O
Molecular Weight: 212.20700 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	304-307 °C
Boiling Point	472.508ºC at 760 mmHg
Density	1.45g/cm3
Flash Point	239.565ºC
Exact Mass	212.07000
PSA	63.83000
LogP	1.52110
Vapor Pressure	0mmHg at 25°C
Refractive Index	1.749

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-Hydroxy-1-phenylpyrazolo[3,4-d]pyrimidine?

The CAS number of 4-Hydroxy-1-phenylpyrazolo[3,4-d]pyrimidine is 21314-17-0.

What are the molecular formula and molecular weight of 4-Hydroxy-1-phenylpyrazolo[3,4-d]pyrimidine?

4-Hydroxy-1-phenylpyrazolo[3,4-d]pyrimidine has molecular formula C11H8N4O and molecular weight 212.20700 g/mol.

What are the upstream and downstream products of 4-Hydroxy-1-phenylpyrazolo[3,4-d]pyrimidine?

For 4-Hydroxy-1-phenylpyrazolo[3,4-d]pyrimidine, Upstream Products: 5-amino-1-phenylpyrazole-4-carboxamide, Triethyl orthoformate, Ethyl formate; Downstream Products: 4-Hydrazinyl-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine, 4-Chloro-1-phenyl-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: 8/21/2026

How to cite: Jingsj. "4-Hydroxy-1-phenylpyrazolo[3,4-d]pyrimidine (CAS 21314-17-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45217-5 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.