5-(Propylthio)-1,3,4-thiadiazole-2-thiol

Also known as: 1,3,4-Thiadiazole-2(3H)-thione,5-(propylthio)-, 2-N-PROPYLTHIO-1,3,4-THIADIAZOLE-5-THIOL, 2-Propylthio-1,3,4-thiadiazole-5-thiol, 5-(PROPYLTHIO)-1,3,4-THIADIAZOLE-2-THIOL, 5-(propylthio)-1,3,4-thiadiazole-2-thiolate, 5-N-PROPYLTHIO-1,3,4-THIADIAZOLE-2-THIOL, 5-Propylmercapto-3H-[1,3,4]thiadiazol-2-thione, 5-propylsulfanyl-3H-1,3,4-thiadiazole-2-thione, 5-propylsulfanyl-3H-[1,3,4]thiadiazole-2-thione, 5-propylthio-1,3,4-thiadiazole-2-thiol, D2-1,3,4-Thiadiazoline-5-thione, 2-(propylthio)-, HMS553O22, PROPYLTHIO-1,3,4-THIADIAZOLE-2-THIOL, n-propylthio-1,3,4-thiadiazole-5(4H)-thione

5-(Propylthio)-1,3,4-thiadiazole-2-thiol (CAS 19921-88-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C5H8N2S3 and a molecular weight of 192.32500 g/mol. Key properties include a melting point of 145-147ºC, a boiling point of 273.3ºC at 760mmHg, a density of 1.47g/cm3 and a flash point of 119.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19921-88-1
Jingsj CID: J-1513766-3
Molecular Formula: C₅H₈N₂S₃
Molecular Weight: 192.32500 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	145-147ºC
Boiling Point	273.3ºC at 760mmHg
Density	1.47g/cm3
Flash Point	119.1ºC
Exact Mass	191.98500
PSA	118.12000
LogP	2.32890
Vapor Pressure	0.00578mmHg at 25°C
Refractive Index	1.725

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. 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 5-(Propylthio)-1,3,4-thiadiazole-2-thiol?

The CAS number of 5-(Propylthio)-1,3,4-thiadiazole-2-thiol is 19921-88-1.

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

5-(Propylthio)-1,3,4-thiadiazole-2-thiol has molecular formula C5H8N2S3 and molecular weight 192.32500 g/mol.

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

For 5-(Propylthio)-1,3,4-thiadiazole-2-thiol, Upstream Products: 2,5-Dimercapto-1,3,4-thiadiazole, 1-bromopropane.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-(Propylthio)-1,3,4-thiadiazole-2-thiol (CAS 19921-88-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1513766-3 (accessed 2026-11-09).

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