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2-Amino-5-(methylthio)-1,3,4-thiadiazole

Also known as: 1,3,4-Thiadiazol-2-amine, 5-(methylthio)-, 1,3,4-Thiadiazole, 2-amino-5-(methylthio)-, 2-Amino-5-(methylthio)-1,3,4-thiadiazole, 2-Amino-5-methylmercapto-1,3,4-thiadiazole, 2-Amino-5-methylthio-1,3,4-thiadiazole, 5-(Methylthio)-1,3,4-thiadiazol-2-amine, 5-methylsulfanyl-1,3,4-thiadiazol-2-amine, NSC 67524

2-Amino-5-(methylthio)-1,3,4-thiadiazole (CAS 5319-77-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H5N3S2 and a molecular weight of 147.22200 g/mol. Key properties include a melting point of 178-181 °C(lit.), a boiling point of 318.1ºC at 760mmHg, a density of 1.48g/cm3 and a flash point of 146.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5319-77-7
Jingsj CID
J-28210-0
Molecular Formula
C3H5N3S2
Molecular Weight
147.22200 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point178-181 °C(lit.)
Boiling Point318.1ºC at 760mmHg
Density1.48g/cm3
Flash Point146.2ºC
Exact Mass146.99200
PSA106.07000
LogP0.77230
Refractive Index1.662

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. 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-Amino-5-(methylthio)-1,3,4-thiadiazole?

The CAS number of 2-Amino-5-(methylthio)-1,3,4-thiadiazole is 5319-77-7.

What are the molecular formula and molecular weight of 2-Amino-5-(methylthio)-1,3,4-thiadiazole?

2-Amino-5-(methylthio)-1,3,4-thiadiazole has molecular formula C3H5N3S2 and molecular weight 147.22200 g/mol.

What are the upstream and downstream products of 2-Amino-5-(methylthio)-1,3,4-thiadiazole?

For 2-Amino-5-(methylthio)-1,3,4-thiadiazole, Upstream Products: 5-Amino-1,3,4-thiadiazole-2-thiol, Methyl bromide, iodomethane; Downstream Products: 2-Bromo-5-(methylthio)-1,3,4-thiadiazole.

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-Amino-5-(methylthio)-1,3,4-thiadiazole (CAS 5319-77-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28210-0 (accessed 2026-11-09).

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