Description

Pirbenicillin CAS NO 55975-92-3 is a semi-synthetic penicillin derivative, specifically a ureidopenicillin, known for its extended spectrum of antibacterial activity. This compound is valued for its efficacy against a range of Gram-negative and Gram-positive bacteria, including Pseudomonas aeruginosa. It is primarily utilized in pharmaceutical research and development for the synthesis of advanced antibiotic formulations and serves as a critical intermediate in antimicrobial studies.

Application

• Pharmaceutical Intermediate: Key starting material in the synthesis of advanced penicillin-based antibiotic APIs.
• Antimicrobial Research: Used in microbiological and pharmacological studies to investigate structure-activity relationships and new therapeutic pathways.
• Reference Standard: Serves as a high-purity analytical standard for quality control and regulatory testing in pharmaceutical manufacturing.
• Preclinical Development: Employed in the formulation and testing of new injectable antibiotic candidates.

Basic Information

Product Name	Pirbenicillin
CAS No.	55975-92-3
Molecular Formula	C23H27N5O7S2
Molecular Weight	549.62 g/mol
Synonyms	Pirbenicillin; BL-P 1654; 6-[D-2-Phenyl-2-(4-hydroxy-1,5-naphthyridine-3-carboxamido)acetamido]penicillanic acid; (2S,5R,6R)-6-[[(2R)-2-Phenyl-2-[[4-hydroxy-1,5-naphthyridine-3-carbonyl]amino]acetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid; Ureidopenicillin BL-P1654
EINECS	Contact for details

Quality Control

Our Pirbenicillin is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, identity confirmation by IR and NMR spectroscopy, and stringent controls for residual solvents and impurities. Certificates of Analysis (COA) documenting compliance with in-house specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Residual Solvents (GC)	Complies with ICH guidelines

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