Sepantronium bromide

溴化塞泮托铵

Also known as: YM-155, YM155, Sepantronium bromide (YM155), Sepantronium Bromide, 1-(2-Methoxyethyl)-2-methyl-4,9-dioxo-3-(2-pyrazinylmethyl)-4,9-dihydro-1H-naphtho[2,3-d]imidazol-3-ium bromide, 4,9-Dihydro-1-(2-methoxyethyl)-2-methyl-4,9-dioxo-3-(2-pyrazinylmethyl)-1H-naphth[2,3-d]imidazolium bromide, 1H-Naphth[2,3-d]imidazolium, 4,9-dihydro-1-(2-methoxyethyl)-2-methyl-4,9-dioxo-3-(2-pyrazinylmethyl)-, bromide (1:1), UNII-7H5Q4J1CM5, Sepantronium monobromide, YM 155

Sepantronium bromide (CAS 781661-94-7) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H19BrN4O3 and a molecular weight of 443.294 g/mol. It is also known as YM-155, YM155 and Sepantronium bromide (YM155). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
781661-94-7
Jingsj CID
J-1977879-8
Molecular Formula
C20H19BrN4O3
Chinese Name
溴化塞泮托铵
Molecular Weight
443.294 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of Sepantronium bromide?

The CAS number of Sepantronium bromide is 781661-94-7.

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

Sepantronium bromide has molecular formula C20H19BrN4O3 and molecular weight 443.294 g/mol.

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

Last updated:

How to cite: Jingsj. "Sepantronium bromide (CAS 781661-94-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1977879-8 (accessed 2026-10-25).

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