Aclidinium bromide

Also known as: UNII-UQW7UF9N91, Tudorza Pressair, LAS 34273, LAS-W 330, Eklira, Bretaris, (3R)-3-[(2-Hydroxy-2,2-di(thiophen-2-yl)acetyl)oxy]-1-(3-phenoxypropyl)quinuclidin-1-ium bromide, 1-Azoniabicyclo[2.2.2]octane, 3-[(2-hydroxy-2,2-di-2-thienylacetyl)oxy]-1-(3-phenoxypropyl)-, bromide (1:1), (3R)-

Aclidinium bromide (CAS 320345-99-1) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C26H30BrNO4S2 and a molecular weight of 564.555 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 320345-99-1
Jingsj CID: J-1886-3
Molecular Formula: C₂₆H₃₀BrNO₄S₂
Molecular Weight: 564.555 g/mol
Category: Organohalogen Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	563.079956
PSA	112.24000
LogP	1.62960

Activity & Biological Data

Additional Information	[1]. Cazzola M. Aclidinium bromide, a novel long-acting muscarinic M3 antagonist for the treatment of COPD. Curr Opin Investig Drugs. 2009 May;10(5):482-90. [2]. Joos GF. Potential for long-acting muscarinic antagonists in chronic obstructive pulmonary disease. Expert Opin Investig Drugs. 2010 Feb;19(2):257-64. [3]. Sentellas S, Ramos I, Albertí J et al. Aclidinium bromide, a new, long-acting, inhaled muscarinic antagonist: in vitro plasma inactivation and pharmacological activity of its main metabolites. Eur J Pharm Sci. 2010 Mar 18;39(5):283-90. [4]. Sims MW, Panettieri RA Jr. Profile of aclidinium bromide in the treatment of chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis. 2011;6:457-66.

Additional Information

[1]. Cazzola M. Aclidinium bromide, a novel long-acting muscarinic M3 antagonist for the treatment of COPD. Curr Opin Investig Drugs. 2009 May;10(5):482-90. [2]. Joos GF. Potential for long-acting muscarinic antagonists in chronic obstructive pulmonary disease. Expert Opin Investig Drugs. 2010 Feb;19(2):257-64. [3]. Sentellas S, Ramos I, Albertí J et al. Aclidinium bromide, a new, long-acting, inhaled muscarinic antagonist: in vitro plasma inactivation and pharmacological activity of its main metabolites. Eur J Pharm Sci. 2010 Mar 18;39(5):283-90. [4]. Sims MW, Panettieri RA Jr. Profile of aclidinium bromide in the treatment of chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis. 2011;6:457-66.

Frequently Asked Questions

What is the CAS number of Aclidinium bromide?

The CAS number of Aclidinium bromide is 320345-99-1.

What are the molecular formula and molecular weight of Aclidinium bromide?

Aclidinium bromide has molecular formula C26H30BrNO4S2 and molecular weight 564.555 g/mol.

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. "Aclidinium bromide (CAS 320345-99-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1886-3 (accessed 2026-11-07).

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