Homatropine methylbromide

溴甲后马托品

Also known as: Homatropine methobromide, Methylhomatropine bromide, N-Methylhomatropinium bromide, 8-Methylhomatropinium bromide, Homatropine methylbromide (8CI), Malcotran, Mesopin, Novatrin, Novatropine, Sethyl, Arkytropin, Esopin, Homapin, Homalone, Tropinium methobromide mandelate, UNII-68JRS2HC1C

Homatropine methylbromide (CAS 80-49-9) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C17H24BrNO3 and a molecular weight of 370.281 g/mol. It is also known as Homatropine methobromide, Methylhomatropine bromide and N-Methylhomatropinium bromide. Key properties include a melting point of 192°C, a boiling point of 403.3ºC at 760 mmHg, a density of 1.21g/cm3 and a flash point of 197.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 80-49-9
Jingsj CID: J-47469-0
Molecular Formula: C₁₇H₂₄BrNO₃
Chinese Name: 溴甲后马托品
Molecular Weight: 370.281 g/mol
Category: Organohalogen Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	192°C
Boiling Point	403.3ºC at 760 mmHg
Density	1.21g/cm3
Flash Point	197.7ºC
Exact Mass	369.093964
PSA	46.53000
Refractive Index	1.588

Activity & Biological Data

Additional Information	[1]. Sim MK et al. Muscarinic receptors in the aortae of normo- and hypertensive rats: a binding study. Clin Exp Hypertens. 1993 Mar;15(2):409-21. [2]. Bryant SM et al. Intramuscular ophthalmic homatropine vs. atropine to prevent lethality in rates with dichlorvos poisoning. J Med Toxicol. 2006 Dec;2(4):156-9. [3]. Leung E et al. Modification by hexamethonium of the muscarinic receptors blocking activity of pancuronium and homatropine in isolated tissues of the guinea-pig. Eur J Pharmacol. 1982 May 7;80(1):11-7.

Additional Information

[1]. Sim MK et al. Muscarinic receptors in the aortae of normo- and hypertensive rats: a binding study. Clin Exp Hypertens. 1993 Mar;15(2):409-21. [2]. Bryant SM et al. Intramuscular ophthalmic homatropine vs. atropine to prevent lethality in rates with dichlorvos poisoning. J Med Toxicol. 2006 Dec;2(4):156-9. [3]. Leung E et al. Modification by hexamethonium of the muscarinic receptors blocking activity of pancuronium and homatropine in isolated tissues of the guinea-pig. Eur J Pharmacol. 1982 May 7;80(1):11-7.

Frequently Asked Questions

What is the CAS number of Homatropine methylbromide?

The CAS number of Homatropine methylbromide is 80-49-9.

What are the molecular formula and molecular weight of Homatropine methylbromide?

Homatropine methylbromide has molecular formula C17H24BrNO3 and molecular weight 370.281 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Homatropine methylbromide (CAS 80-49-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47469-0 (accessed 2026-10-28).

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