4,5-Diphenyl-1,2,3-thiadiazole

4,5-二苯基-1,2,3-噻二唑

Also known as: 1,2,3-Thiadiazole,4,5-diphenyl-, 4,5-Diphenyl-1,2,3-thiadiazol, 4,5-Diphenyl-[1,2,3]thiadiazole, 4,5-bis-phenyl-1,2,3-thiadiazole, 4,5-di(phenyl)thiadiazole, 4,5-diphenylthiadiazole, Diphenyl-[1,2,3]thiadiazol, diphenyl-[1,2,3]thiadiazole, 1.2.3-Thiadiazolon, 4,2,3-thiadiazole

4,5-Diphenyl-1,2,3-thiadiazole (CAS 5393-99-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H10N2S and a molecular weight of 238.30800 g/mol. It is also known as 1,2,3-Thiadiazole,4,5-diphenyl-, 4,5-Diphenyl-1,2,3-thiadiazol and 4,5-Diphenyl-[1,2,3]thiadiazole. Key properties include a melting point of 92-94ºC, a boiling point of 361.2ºC at 760mmHg, a density of 1.216g/cm3 and a flash point of 161.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5393-99-7
Jingsj CID
J-31210-7
Molecular Formula
C14H10N2S
Chinese Name
4,5-二苯基-1,2,3-噻二唑
Molecular Weight
238.30800 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point92-94ºC
Boiling Point361.2ºC at 760mmHg
Density1.216g/cm3
Flash Point161.9ºC
Exact Mass238.05600
PSA54.02000
LogP3.87210
Refractive Index1.633

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 4,5-Diphenyl-1,2,3-thiadiazole?

The CAS number of 4,5-Diphenyl-1,2,3-thiadiazole is 5393-99-7.

What are the molecular formula and molecular weight of 4,5-Diphenyl-1,2,3-thiadiazole?

4,5-Diphenyl-1,2,3-thiadiazole has molecular formula C14H10N2S and molecular weight 238.30800 g/mol.

What are the upstream and downstream products of 4,5-Diphenyl-1,2,3-thiadiazole?

For 4,5-Diphenyl-1,2,3-thiadiazole, Upstream Products: Water, 1,2-Diphenyl-2-diazoethanone, 2-Phenylacetophenone; Downstream Products: Tetraphenylthiophene.

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

Last updated:

How to cite: Jingsj. "4,5-Diphenyl-1,2,3-thiadiazole (CAS 5393-99-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31210-7 (accessed 2026-10-28).

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