Description

Leucomycin A7 CAS NO 18361-47-2 is a macrolide antibiotic belonging to the leucomycin (kitasamycin) complex, primarily produced by *Streptomyces kitasatoensis*. This compound is valued for its potent antibacterial activity against Gram-positive bacteria and certain mycoplasmas. It is a critical intermediate and reference standard in the research and development of veterinary pharmaceuticals and antimicrobial agents.

Application

• Veterinary Pharmaceutical Ingredient: Used in the formulation of animal feed additives and therapeutic treatments for bacterial infections in livestock and poultry.
• Antimicrobial Research: Serves as a key reference standard and active compound in microbiological and pharmacological research studies.
• Biochemical Synthesis: Acts as a crucial intermediate or starting material in the synthesis of novel macrolide derivatives and semi-synthetic antibiotics.
• Quality Control & Standardization: Employed as a certified reference material (CRM) for assay calibration and purity testing in pharmaceutical quality control laboratories.

Basic Information

Product Name	Leucomycin A7
CAS No.	18361-47-2
Molecular Formula	C39H65NO14
Molecular Weight	771.9 g/mol
Synonyms	Kitasamycin A7; Leucomycin V; Ayermycin; Kitasamycin; Stereomycin; Antibiotic T 2636 C; Kitasamycin A7; 9,3''-Di-O-acetyl-4''-deoxy-3-O-propionylleucomycin A3
EINECS	Contact for details

Quality Control

Our Leucomycin A7 is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets high-purity standards suitable for research and pharmaceutical applications. A comprehensive Certificate of Analysis (COA) detailing purity, impurities, and physical characteristics is provided with every shipment.

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 desiccated environment to maintain stability and potency.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 3.0%
Residue on Ignition	≤ 0.5%
Specific Rotation	Contact for details

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