Trazodone

Also known as: Desyrel, Trazon, Trialodine, 2-{3-[4-(3-chlorophenyl)piperazin-1-yl]propyl}[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one, 2-[3-[4-(3-chlorophenyl)-1-piperazinyl]propyl]-1,2,4-triazolo[4,3-a]pyridin-3(2H)-one, AF-1161

Trazodone (CAS 19794-93-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C19H22ClN5O and a molecular weight of 371.86 g/mol. Key properties include a melting point of 86-87ºC, a boiling point of 528.5±60.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 273.4±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19794-93-5
Jingsj CID: J-1972806-3
Molecular Formula: C₁₉H₂₂ClN₅O
Molecular Weight: 371.86 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	86-87ºC
Boiling Point	528.5±60.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	273.4±32.9 °C
Exact Mass	371.151276
PSA	45.78000
LogP	1.66
Vapor Pressure	0.0±1.4 mmHg at 25°C
Refractive Index	1.671

Activity & Biological Data

Additional Information	[1]. Fagiolini A, et, al. Rediscovering trazodone for the treatment of major depressive disorder. CNS Drugs. 2012 Dec;26(12):1033-49.

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 Trazodone?

The CAS number of Trazodone is 19794-93-5.

What are the molecular formula and molecular weight of Trazodone?

Trazodone has molecular formula C19H22ClN5O and molecular weight 371.86 g/mol.

What are the upstream and downstream products of Trazodone?

For Trazodone, Upstream Products: 1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one, 1-Chloro-3-iodobenzene; Downstream Products: Trazodone hydrochloride.

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. "Trazodone (CAS 19794-93-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1972806-3 (accessed 2026-11-06).

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