Description

Mezlocillin is a broad-spectrum, semisynthetic acylureidopenicillin antibiotic. It is valued for its enhanced activity against Gram-negative bacteria, including Pseudomonas aeruginosa, compared to earlier penicillins. This product is essential for pharmaceutical manufacturers and research institutions developing injectable antibiotic formulations and conducting microbiological studies.

Application

• Pharmaceutical Active Ingredient (API): Primary use in the formulation of injectable antibiotic drugs for clinical use.
• Research & Development: Serves as a critical reference standard and intermediate in antimicrobial research and new drug discovery programs.
• Microbiological Studies: Used in laboratory settings to study bacterial resistance mechanisms and efficacy profiles.
• Veterinary Medicine: Potential application in developing treatments for bacterial infections in animals.

Basic Information

Product Name	Mezlocillin
CAS No.	51481-65-3
Molecular Formula	C21H25N5O8S2
Molecular Weight	539.59 g/mol
Synonyms	Mezlocillin Sodium; Baypen; Mezlin; (2S,5R,6R)-3,3-Dimethyl-7-oxo-6-[[(2R)-2-[[(3S,5S)-5-methyl-2-oxo-1,3-oxazolidin-3-yl]carbonylamino]-2-phenylacetyl]amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid; Bay e 5003; 6-[D(-)-α-(3-Methylsulfonyl-2-oxoimidazolidine-1-carboxamido)phenylacetamido]penicillanic acid; Sodium Mezlocillin
EINECS	257-231-5

Quality Control

Our Mezlocillin is manufactured under strict quality management systems. Each batch is tested to ensure it meets high-purity standards suitable for pharmaceutical applications, with specifications typically referencing pharmacopeial guidelines. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to maintain stability and potency.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Identification (HPLC)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%
Bacterial Endotoxins	< 0.25 EU/mg
Sterility (for sterile grade)	Sterile

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.