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

2-氨基-5-(乙基硫代)-1,3,4-噻二唑

Also known as: 5-(ethylthio)-1,3,4-thiadiazol-2-amine, 2-Amino-5-ethylthio-1,3,4-thiadiazole, 5-(ethylsulfanyl)-1,3,4-thiadiazol-2-amine, 2-Amino-5-ethylsulfanyl-1,3,4-thiadiazole, 1,3,4-Thiadiazol-2-amine, 5-(ethylthio)-, 5-ethylsulfanyl-1,3,4-thiadiazol-2-amine, 5-ethylthio-1,3,4-thiadiazole-2-ylamine, 2-Amino-5-(ethylmercapto)-1,3,4-thiadiazole, EINECS 247-169-9, MFCD00040401

2-Amino-5-(ethylthio)-1,3,4-thiadiazole (CAS 25660-70-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H7N3S2 and a molecular weight of 161.24800 g/mol. It is also known as 5-(ethylthio)-1,3,4-thiadiazol-2-amine, 2-Amino-5-ethylthio-1,3,4-thiadiazole and 5-(ethylsulfanyl)-1,3,4-thiadiazol-2-amine. Key properties include a melting point of 135-137 °C(lit.), a boiling point of 322.2ºC at 760mmHg, a density of 1.39g/cm3 and a flash point of 148.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
25660-70-2
Jingsj CID
J-28209-1
Molecular Formula
C4H7N3S2
Chinese Name
2-氨基-5-(乙基硫代)-1,3,4-噻二唑
Molecular Weight
161.24800 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point135-137 °C(lit.)
Boiling Point322.2ºC at 760mmHg
Density1.39g/cm3
Flash Point148.7ºC

Frequently Asked Questions

What is the CAS number of 2-Amino-5-(ethylthio)-1,3,4-thiadiazole?

The CAS number of 2-Amino-5-(ethylthio)-1,3,4-thiadiazole is 25660-70-2.

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

2-Amino-5-(ethylthio)-1,3,4-thiadiazole has molecular formula C4H7N3S2 and molecular weight 161.24800 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Amino-5-(ethylthio)-1,3,4-thiadiazole (CAS 25660-70-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28209-1 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.