Pefloxacin mesylate dihydrate

甲磺酸培氟沙星二水合物

Also known as: Pefloxacin mesilate dihydrate, Pefloxacin methanesulfonate dihydrate, 1-Ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid methanesulfonate dihydrate, Pefloxacin methane sulfonate dihydrate, RB-1589, EU-5306

Pefloxacin mesylate dihydrate (CAS 149676-40-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H28FN3O8S and a molecular weight of 465.49400 g/mol. It is also known as Pefloxacin mesilate dihydrate, Pefloxacin methanesulfonate dihydrate and 1-Ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid methanesulfonate dihydrate. Key properties include a melting point of 271ºC, a boiling point of 529.1ºC at 760mmHg and a flash point of 273.8ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
149676-40-4
Jingsj CID
J-1969419-9
Molecular Formula
C18H28FN3O8S
Chinese Name
甲磺酸培氟沙星二水合物
Molecular Weight
465.49400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point271ºC
Boiling Point529.1ºC at 760mmHg
Flash Point273.8ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Pefloxacin mesylate dihydrate?

The CAS number of Pefloxacin mesylate dihydrate is 149676-40-4.

What are the molecular formula and molecular weight of Pefloxacin mesylate dihydrate?

Pefloxacin mesylate dihydrate has molecular formula C18H28FN3O8S and molecular weight 465.49400 g/mol.

Is Pefloxacin mesylate dihydrate hazardous?

Pefloxacin mesylate dihydrate has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Pefloxacin mesylate dihydrate (CAS 149676-40-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1969419-9 (accessed 2026-10-24).

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