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6-(Methylthio)purine

Also known as: 6-Methylmercaptopurine, 6-methylthiopurine, 6-(methylsulfanyl)-7H-purine, 6-(methylsulfanyl)-9H-purine, 6-(methylthio)-1H-purine, 1H-Purine, 6-(methylthio)-, 6-Methyl MP, S-Methyl-6-mercaptopurine, Sq 8,343, Sq 8343, EINECS 200-057-3, MFCD00005576

6-(Methylthio)purine (CAS 50-66-8) 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 melting point of 219-223 °C, a boiling point of 470.2ºC at 760 mmHg and a density of 1.47 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
50-66-8
Jingsj CID
J-14934-8
Molecular Formula
C6H6N4S
Molecular Weight
166.20400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point219-223 °C
Boiling Point470.2ºC at 760 mmHg
Density1.47 g/cm3
Exact Mass166.03100
PSA79.76000
LogP1.07480
Refractive Index1.806
Storage Conditions2-8°C

Activity & Biological Data

Additional Information[1]. Sugimura H, Takei H. Synthesis of 6-alkylpurine derivatives by nickel-complex-catalyzed coupling reaction of 6-(methylthio) purine derivatives with Grignard reagents. Bulletin of the Chemical Society of Japan, 1985, 58(2): 664-666.

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 6-(Methylthio)purine?

The CAS number of 6-(Methylthio)purine is 50-66-8.

What are the molecular formula and molecular weight of 6-(Methylthio)purine?

6-(Methylthio)purine has molecular formula C6H6N4S and molecular weight 166.20400 g/mol.

What are the upstream and downstream products of 6-(Methylthio)purine?

For 6-(Methylthio)purine, Upstream Products: 6-Chloropurine, Sodium thiomethoxide, Mercaptopurine; Downstream Products: 6-Methylthioinosine, 6-morpholinopurine.

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

Last updated:

How to cite: Jingsj. "6-(Methylthio)purine (CAS 50-66-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14934-8 (accessed 2026-11-09).

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