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2-Thioxanthine

Also known as: 1,2,3,7-tetrahydro-2-thioxo-6H-purin-6-one, 2-sulfanylidene-3,7-dihydropurin-6-one, 2-Mercapto-6-hydroxypurine, 2-Mercaptoxanthine, 2-Thio-6-oxopurine, 2-Thio-6-oxypurine, 6-Hydroxy-2-mercaptopurine, 6-Hydroxypurine-2-thiol, 2-thio-xanthin, 2-thioxanthene, 2-Thioxo-2,3-dihydro-1H-purin-6(7H)-one, 2-Mercaptohypoxanthine, Xanthine, 2-thio-

2-Thioxanthine (CAS 2487-40-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4N4OS and a molecular weight of 168.17600 g/mol. Key properties include a melting point of >300°C and a density of 1.78g/cm3. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
2487-40-3
Jingsj CID
J-15718-6
Molecular Formula
C5H4N4OS
Molecular Weight
168.17600 g/mol
Category
Pharma Intermediates
Last updated
11/3/2026
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Physicochemical Properties

Melting Point>300°C
Density1.78g/cm3
Exact Mass168.01100
PSA109.42000
LogP0.30880
Refractive Index2.019

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-Thioxanthine?

The CAS number of 2-Thioxanthine is 2487-40-3.

What are the molecular formula and molecular weight of 2-Thioxanthine?

2-Thioxanthine has molecular formula C5H4N4OS and molecular weight 168.17600 g/mol.

What are the upstream and downstream products of 2-Thioxanthine?

For 2-Thioxanthine, Upstream Products: 5,6-diamino-2-sulfanylpyrimidin-4-ol, Methanimidic acid, (Z)-, 6-amino-2-sulfanylpyrimidin-4-ol; Downstream Products: 2,6-Dithiopurine, 2-Bromohypoxanthine, 6-chloro-2-(methylthio)-7H-purine.

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-Thioxanthine (CAS 2487-40-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15718-6 (accessed 2026-11-09).

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