Description

Circulin is a polypeptide antibiotic complex derived from *Bacillus circulans*, identified by CAS No. 9008-54-2. This product is valued for its potent antimicrobial activity against a range of Gram-negative and Gram-positive bacteria. It is primarily utilized in research and development within the pharmaceutical and biotechnology sectors for studying antibiotic mechanisms and developing novel therapeutic agents.

Application

• Antimicrobial Research: Used as a reference standard and active agent in microbiological studies to investigate bacterial resistance and antibiotic efficacy.
• Pharmaceutical Development: Serves as a key intermediate or model compound in the R&D of new antibiotic formulations and combination therapies.
• Biochemical Studies: Employed in enzymatic and cellular assays to understand the interaction of polypeptide antibiotics with bacterial cell membranes.
• Veterinary Medicine Research: Investigated for potential applications in animal health for combating bacterial infections.

Basic Information

Product Name	Circulin
CAS No.	9008-54-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Circulin A; Circulin B; Antibiotic from Bacillus circulans; Polypeptide antibiotic complex; Bacillocin; Circularin
EINECS	Contact for details

Quality Control

Our Circulin is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure identity, purity, and potency. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay, related substances, and microbiological purity is available upon request to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption, which may affect stability and potency.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference standard
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
pH (1% solution)	5.0 - 7.0
Bacterial Endotoxins	< 10.0 EU/mg
Microbial Enumeration	Meets Ph. Eur. 2.6.12/2.6.13 criteria

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