1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine

Also known as: 1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-ylamine, 1-methylpyrazolo[3,4-d]pyrimidin-4-amine, (1-methylpyrazolo[3,4-d]pyrimidin-4-yl)amine, 1H-Pyrazolo[3,4-d]pyrimidin-4-amine, 1-methyl-, 1H-Pyrazolo[3,4-d]pyrimidin-4-amine, 1-methyl- (9CI), NSC 1399

1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 5334-99-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H7N5 and a molecular weight of 149.153 g/mol. Key properties include a melting point of 268-270ºC, a boiling point of 354.4±22.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 168.2±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5334-99-6
Jingsj CID: J-1348625-4
Molecular Formula: C₆H₇N₅
Molecular Weight: 149.153 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	268-270ºC
Boiling Point	354.4±22.0 °C at 760 mmHg
Density	1.6±0.1 g/cm3
Flash Point	168.2±22.3 °C
Exact Mass	149.070145
PSA	69.62000
LogP	-0.49
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.807

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 1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine?

The CAS number of 1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine is 5334-99-6.

What are the molecular formula and molecular weight of 1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine?

1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine has molecular formula C6H7N5 and molecular weight 149.153 g/mol.

What are the upstream and downstream products of 1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine?

For 1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine, Upstream Products: 4-Chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidine, 5-Amino-1-methyl-1H-pyrazole-4-carbonitrile, Methanimidic acid, (Z)-; Downstream Products: 1-Methyl-1H-pyrazolo[3,4-d]pyrimidin-4-ol.

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. "1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 5334-99-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1348625-4 (accessed 2026-11-09).

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