1,5-dihydro-6-methyl-4H-pyrazolo[3,4-d]pyrimidine-4-thione

Also known as: 4H-Pyrazolo[3,4-d]pyrimidine-4-thione, 1,5-dihydro-6-methyl-, 6-Methyl-1H-pyrazolo[3,4-d]pyrimidine-4(5H)-thione, 6-Methyl-1H-pyrazolo[3,4-d]pyrimidine-4-thiol, 6-methyl-1,5-dihydro-pyrazolo[3,4-d]pyrimidine-4-thione, NSC 515434

1,5-dihydro-6-methyl-4H-pyrazolo[3,4-d]pyrimidine-4-thione (CAS 15986-11-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H6N4S and a molecular weight of 166.20400 g/mol. Key properties include a boiling point of 291.8ºC at 760mmHg, a density of 1.68g/cm3 and a flash point of 130.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 15986-11-5
Jingsj CID: J-1082171-3
Molecular Formula: C₆H₆N₄S
Molecular Weight: 166.20400 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	291.8ºC at 760mmHg
Density	1.68g/cm3
Flash Point	130.3ºC
Exact Mass	166.03100
PSA	89.45000
LogP	1.32390
Vapor Pressure	0.0019mmHg at 25°C
Refractive Index	1.86

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 1,5-dihydro-6-methyl-4H-pyrazolo[3,4-d]pyrimidine-4-thione?

The CAS number of 1,5-dihydro-6-methyl-4H-pyrazolo[3,4-d]pyrimidine-4-thione is 15986-11-5.

What are the molecular formula and molecular weight of 1,5-dihydro-6-methyl-4H-pyrazolo[3,4-d]pyrimidine-4-thione?

1,5-dihydro-6-methyl-4H-pyrazolo[3,4-d]pyrimidine-4-thione has molecular formula C6H6N4S and molecular weight 166.20400 g/mol.

What are the upstream and downstream products of 1,5-dihydro-6-methyl-4H-pyrazolo[3,4-d]pyrimidine-4-thione?

For 1,5-dihydro-6-methyl-4H-pyrazolo[3,4-d]pyrimidine-4-thione, Upstream Products: 6-Methyl-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one, 4-Chloro-6-methyl-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. "1,5-dihydro-6-methyl-4H-pyrazolo[3,4-d]pyrimidine-4-thione (CAS 15986-11-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1082171-3 (accessed 2026-11-09).

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