Description

Phenelfamycin B CAS NO 118498-92-3 is a specialized macrolide antibiotic belonging to the elfamycin class, known for its potent activity against Gram-positive bacteria. This compound is a critical intermediate and reference standard in pharmaceutical research and development, particularly for studying novel antibacterial agents and resistance mechanisms. It is essential for research institutions, pharmaceutical manufacturers, and biotechnology companies engaged in antibiotic discovery, microbiological studies, and quality control of related pharmaceutical products.

Application

• Pharmaceutical Research & Development: Serves as a key intermediate in the synthesis of novel elfamycin-class antibiotics and as a biological tool for studying structure-activity relationships.
• Microbiological Studies: Used as a reference standard in antimicrobial susceptibility testing and research on bacterial resistance mechanisms against macrolide antibiotics.
• Quality Control & Analytical Testing: Employed as a high-purity certified reference material (CRM) for the assay and impurity profiling of antibiotic formulations in QC laboratories.
• Biochemical Research: Utilized in enzymatic and receptor-binding assays to investigate the mode of action of elfamycins at the molecular level.
• Veterinary Pharmaceutical Development: Investigated for potential applications in developing antibacterial treatments for animal health.

Basic Information

Product Name	Phenelfamycin B
CAS No.	118498-92-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Phenelfamycin B; Antibiotic A 201 B; Elfamycin B; A-201 B; Phenelfamycin; (Additional IUPAC/systematic names available on request)
EINECS	Contact for details

Quality Control

Our Phenelfamycin B is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and reliability for research applications. Each lot undergoes comprehensive analytical testing, including identity confirmation by spectroscopic methods and purity assessment by chromatography. A Certificate of Analysis (COA) detailing specific results for purity, related substances, and residual solvents is provided with every shipment to support your regulatory and research documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under anhydrous conditions. For long-term storage, consider desiccation or an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
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.