4-Chloro-1H-pyrazolo[3,4-d]pyrimidine

Also known as: 4-Chloro-1H-pyrazolo[3,4-d]pyrimidine, 4-Chloropyrazolo[3,4-d]pyrimidine, 1H-Pyrazolo[3,4-d]pyrimidine, 4-chloro-, AKOS BBS-00002106, IFLAB-BB F0909-0060, MFCD03030404, NSC 4937

4-Chloro-1H-pyrazolo[3,4-d]pyrimidine (CAS 5399-92-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3ClN4 and a molecular weight of 154.557 g/mol. Key properties include a melting point of >350ºC, a boiling point of 348.3±22.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 195.3±7.9 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.: 5399-92-8
Jingsj CID: J-851608-3
Molecular Formula: C₅H₃ClN₄
Molecular Weight: 154.557 g/mol
Category: Pharma Intermediates
Last updated: 11/3/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point	>350ºC
Boiling Point	348.3±22.0 °C at 760 mmHg
Density	1.7±0.1 g/cm3
Flash Point	195.3±7.9 °C
Exact Mass	154.004623
PSA	54.46000
LogP	0.05
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.740
Storage Conditions	Refrigerator

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-Chloro-1H-pyrazolo[3,4-d]pyrimidine?

The CAS number of 4-Chloro-1H-pyrazolo[3,4-d]pyrimidine is 5399-92-8.

What are the molecular formula and molecular weight of 4-Chloro-1H-pyrazolo[3,4-d]pyrimidine?

4-Chloro-1H-pyrazolo[3,4-d]pyrimidine has molecular formula C5H3ClN4 and molecular weight 154.557 g/mol.

What are the upstream and downstream products of 4-Chloro-1H-pyrazolo[3,4-d]pyrimidine?

For 4-Chloro-1H-pyrazolo[3,4-d]pyrimidine, Upstream Products: 4,6-Dichloro-5-pyrimidinecarbaldehyde, Allopurinol, Hydrazine monohydrochloride; Downstream Products: 4-chloro-3-iodo-1H-pyrazolo[3,4-d]pyrimidine, 3-Bromo-4-chloro-1H-pyrazolo[3,4-d]pyrimidine, tert-butyl 4-(1H-pyrazolo[3,4-d]pyrimidin-4-yl)piperazine-1-carboxylate.

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

Last updated: 11/3/2026

How to cite: Jingsj. "4-Chloro-1H-pyrazolo[3,4-d]pyrimidine (CAS 5399-92-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-851608-3 (accessed 2026-11-09).

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