Benzonatate

Also known as: Benzononatine, Tessalon, Ventussin, Exangit, 2-[2-[2-[2-[2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethyl 4-(butylamino)benzoate, Benzonatato, Benzonatatum, MFCD00072060, EINECS 203-194-7

Benzonatate (CAS 104-31-4) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C30H53NO11 and a molecular weight of 603.74200 g/mol. Key properties include a density of 1.096 g/cm3 and a flash point of 346.3ºC. GHS hazard statements: H412 — Harmful to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 104-31-4
Jingsj CID: J-45711-8
Molecular Formula: C₃₀H₅₃NO₁₁
Molecular Weight: 603.74200 g/mol
Category: Esters
Last updated: 8/21/2026

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Physicochemical Properties

Density	1.096 g/cm3
Flash Point	346.3ºC
Exact Mass	603.36200
PSA	121.40000
LogP	2.90760
Vapor Pressure	9.98E-17mmHg at 25°C
Refractive Index	1.495
Storage Conditions	2-8°C

GHS Safety & Compliance

H412 — Harmful to aquatic life with long lasting effects

Activity & Biological Data

Additional Information	[1]. Thimann DA, et al. Benzonatate toxicity in a teenager resulting in coma, seizures, and severe metabolic acidosis. J Pediatr Pharmacol Ther. 2012;17(3):270-273. [2]. Teo S, et al. The Antitussive Benzonatate Is Not Tumorigenic in Rodent Carcinogenicity Studies. Toxicol Pathol. 2018;46(6):683-692.

Frequently Asked Questions

What is the CAS number of Benzonatate?

The CAS number of Benzonatate is 104-31-4.

What are the molecular formula and molecular weight of Benzonatate?

Benzonatate has molecular formula C30H53NO11 and molecular weight 603.74200 g/mol.

Is Benzonatate hazardous?

Benzonatate has GHS hazard statements H412 — Harmful to aquatic life with long lasting effects.

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. "Benzonatate (CAS 104-31-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45711-8 (accessed 2026-11-06).

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