4-Trityl-3-thiosemicarbazide

Also known as: 4-Trityl-3-thiosemicarbazide, Hydrazinecarbothioamide, N-(triphenylmethyl)-, 1-amino-3-tritylthiourea, 3-amino-1-(triphenylmethyl)thiourea, 4-tritylthiosemicarbazide

4-Trityl-3-thiosemicarbazide (CAS 21198-26-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C20H19N3S and a molecular weight of 333.45000 g/mol. Key properties include a melting point of 166-168ºC (dec.), a boiling point of 507.5ºC at 760mmHg, a density of 1.209g/cm3 and a flash point of 260.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 21198-26-5
Jingsj CID: J-1163615-0
Molecular Formula: C₂₀H₁₉N₃S
Molecular Weight: 333.45000 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	166-168ºC (dec.)
Boiling Point	507.5ºC at 760mmHg
Density	1.209g/cm3
Flash Point	260.7ºC
Exact Mass	333.13000
PSA	82.17000
LogP	4.79840
Vapor Pressure	2.02E-10mmHg at 25°C
Refractive Index	1.663

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 4-Trityl-3-thiosemicarbazide?

The CAS number of 4-Trityl-3-thiosemicarbazide is 21198-26-5.

What are the molecular formula and molecular weight of 4-Trityl-3-thiosemicarbazide?

4-Trityl-3-thiosemicarbazide has molecular formula C20H19N3S and molecular weight 333.45000 g/mol.

What are the upstream and downstream products of 4-Trityl-3-thiosemicarbazide?

For 4-Trityl-3-thiosemicarbazide, Upstream Products: Trityl isothiocyanate.

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. "4-Trityl-3-thiosemicarbazide (CAS 21198-26-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1163615-0 (accessed 2026-11-09).

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