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5-(Pyridin-3-yl)-1,3,4-oxadiazole-2-thiol

Also known as: 5-(3-Pyridinyl)-1,3,4-oxadiazole-2-thiol, 5-(3-Pyridyl)-1,3,4-oxadiazole-2-thiol, 5-(Pyridin-3-yl)-1,3,4-oxadiazole-2(3H)-thione, 5-Pyridin-3-yl-3H-1,3,4-oxadiazole-2-thione, 5-Pyridin-3-yl-1,3,4-oxadiazole-2-thiol

5-(Pyridin-3-yl)-1,3,4-oxadiazole-2-thiol (CAS 3690-46-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H5N3OS and a molecular weight of 179.19900 g/mol. Key properties include a melting point of 231ºC (dec.), a boiling point of 274.9ºC at 760mmHg, a density of 1.52g/cm3 and a flash point of 120.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3690-46-8
Jingsj CID
J-1487650-7
Molecular Formula
C7H5N3OS
Molecular Weight
179.19900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point231ºC (dec.)
Boiling Point274.9ºC at 760mmHg
Density1.52g/cm3
Flash Point120.1ºC
Exact Mass179.01500
PSA90.61000
LogP1.42030
Refractive Index1.744

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 5-(Pyridin-3-yl)-1,3,4-oxadiazole-2-thiol?

The CAS number of 5-(Pyridin-3-yl)-1,3,4-oxadiazole-2-thiol is 3690-46-8.

What are the molecular formula and molecular weight of 5-(Pyridin-3-yl)-1,3,4-oxadiazole-2-thiol?

5-(Pyridin-3-yl)-1,3,4-oxadiazole-2-thiol has molecular formula C7H5N3OS and molecular weight 179.19900 g/mol.

What are the upstream and downstream products of 5-(Pyridin-3-yl)-1,3,4-oxadiazole-2-thiol?

For 5-(Pyridin-3-yl)-1,3,4-oxadiazole-2-thiol, Upstream Products: Carbon disulphide, Nicotinohydrazide, Nicotinic acid.

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

Last updated:

How to cite: Jingsj. "5-(Pyridin-3-yl)-1,3,4-oxadiazole-2-thiol (CAS 3690-46-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1487650-7 (accessed 2026-11-09).

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