1,4-Diphenyl-3-thiosemicarbazide

Also known as: Diphenylthiosemicarbazide, N,2-Diphenylhydrazinecarbothioamide, Hydrazinecarbothioamide, N,2-diphenyl-, 1,4-Diphenylthiosemicarbazide, 1-Anilino-3-phenylthiourea, 2-Phenyl-N-phenyl-1-hydrazinecarbothioamide, N,2-Diphenyl-hydrazinecarbothioamide, NSC 406528, NSC 49341, EINECS 217-192-9

1,4-Diphenyl-3-thiosemicarbazide (CAS 1768-59-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C13H13N3S and a molecular weight of 243.32700 g/mol. Key properties include a melting point of 178ºC, a boiling point of 366.6ºC at 760mmHg, a density of 1.304g/cm3 and a flash point of 175.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1768-59-8
Jingsj CID: J-27563-8
Molecular Formula: C₁₃H₁₃N₃S
Molecular Weight: 243.32700 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	178ºC
Boiling Point	366.6ºC at 760mmHg
Density	1.304g/cm3
Flash Point	175.5ºC
Exact Mass	243.08300
PSA	68.18000
LogP	3.53700
Vapor Pressure	1.45E-05mmHg at 25°C
Refractive Index	1.749

Customs & Trade Information

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1,4-Diphenyl-3-thiosemicarbazide?

The CAS number of 1,4-Diphenyl-3-thiosemicarbazide is 1768-59-8.

What are the molecular formula and molecular weight of 1,4-Diphenyl-3-thiosemicarbazide?

1,4-Diphenyl-3-thiosemicarbazide has molecular formula C13H13N3S and molecular weight 243.32700 g/mol.

What are the upstream and downstream products of 1,4-Diphenyl-3-thiosemicarbazide?

For 1,4-Diphenyl-3-thiosemicarbazide, Upstream Products: Phenyl isothiocyanate, Phenylhydrazine, 2,4-Diphenyl-3-thiosemicarbazide; Downstream Products: 2-[(4,5-diphenyl-4H-1,2,4-triazol-3-yl)sulfanyl]acetohydrazide, Phenyl isothiocyanate, Phenylhydrazine.

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. "1,4-Diphenyl-3-thiosemicarbazide (CAS 1768-59-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27563-8 (accessed 2026-11-09).

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