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2,6-Dithiopurine

Also known as: 2,6-DIMERCAPTOPURINE, 2,6-DITHIOXANTHINE, 2,6-PURINEDITHIOL, 2,6-THIOPURINE, 3,7-Dihydro-1H-purine-2,6-dithione, 3,7-dihydropurine-2,6-dithione, 6-Sulfanyl-1,9-dihydro-2H-purine-2-thione, 9H-PURINE-2,6-DITHIOL, DITHIOXANTHINE, EINECS 226-608-8, MFCD00022644, 1H-Purine-2,6-dithione, 3,9-dihydro-, 1H-purine-2,6-dithione, 3,7-dihydro-, 2H-Purine-2-thione, 1,9-dihydro-6-mercapto-

2,6-Dithiopurine (CAS 5437-25-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4N4S2 and a molecular weight of 184.24 g/mol. Key properties include a melting point of >350 °C(lit.), a boiling point of 496.2±37.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 253.9±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
5437-25-2
Jingsj CID
J-1994249-5
Molecular Formula
C5H4N4S2
Molecular Weight
184.24 g/mol
Category
Pharma Intermediates
Last updated
11/3/2026

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Physicochemical Properties

Melting Point>350 °C(lit.)
Boiling Point496.2±37.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point253.9±26.5 °C
Exact Mass183.987732
PSA132.06000
LogP-0.60
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.890
Additional Propertyslightly soluble

Activity & Biological Data

Additional Information[1]. Stephen Boulware, et al. 2,6-Dithiopurine, a nucleophilic scavenger, protects against mutagenesis in mouse skin treated in vivo with 2-(chloroethyl) ethyl sulfide, a mustard gas analog. Toxicol Appl Pharmacol. 2012 Sep 1;263(2):203-9.

Customs & Trade Information

HS Code2933990090
Summary2933990090. 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 2,6-Dithiopurine?

The CAS number of 2,6-Dithiopurine is 5437-25-2.

What are the molecular formula and molecular weight of 2,6-Dithiopurine?

2,6-Dithiopurine has molecular formula C5H4N4S2 and molecular weight 184.24 g/mol.

What are the upstream and downstream products of 2,6-Dithiopurine?

For 2,6-Dithiopurine, Upstream Products: 2-Thioxanthine, Formic Acid, 2,4-Dimercapto-5,6-diaminopyrimidine; Downstream Products: Purine, 2,6-Dibromopurine, 6-Amino-2-bromopurine.

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

Last updated:

How to cite: Jingsj. "2,6-Dithiopurine (CAS 5437-25-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1994249-5 (accessed 2026-11-09).

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