Description

Virginiamycin is a synergistic antibiotic complex belonging to the streptogramin family, primarily composed of Virginiamycin M1 and S1. This product is valued for its potent activity against Gram-positive bacteria, particularly in preventing the development of resistance. It serves as a critical feed additive in animal nutrition for growth promotion and disease control, and is also utilized in select pharmaceutical research applications. Virginiamycin CAS NO 11006-76-1 is supplied as a high-purity, standardized powder to ensure consistent performance.

Application

• Animal Feed Additive: Primarily used as a growth promoter in poultry, swine, and cattle feed to improve feed efficiency and weight gain.
• Antibacterial Agent: Effective in preventing and controlling bacterial enteritis and other infections caused by Gram-positive organisms in livestock.
• Veterinary Medicine: A component in certain veterinary preparations for the treatment of specific bacterial infections.
• Microbiological Research: Used as a selective agent in culture media and in studies of bacterial protein synthesis and antibiotic resistance mechanisms.
• Pharmaceutical Intermediates: Serves as a starting material or reference standard in the research and development of novel antimicrobial agents.

Basic Information

Product Name	Virginiamycin
CAS No.	11006-76-1
Molecular Formula	C28H35N3O7 (M1) / C43H49N7O10 (S1)
Molecular Weight	525.60 g/mol (M1) / 823.91 g/mol (S1)
Synonyms	Staphylomycin; Virginiamycin complex; Mikamycin; Streptogramin; Antibiotic VM; Pristinamycin (related); Vernamycin Bα; Antibiotic 899; Virginiamycin M1; Virginiamycin S1; Antibiotic complex 899
EINECS	234-246-1

Quality Control

Our Virginiamycin is manufactured under strict quality management systems. Each batch is tested to ensure it meets high-purity standards suitable for its intended applications. Certificates of Analysis (COA) are provided, detailing key parameters such as potency, composition, and impurity profiles. We can supply grades aligned with various regional and application-specific requirements.

Storage

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

Specification

Item	Specification
Appearance	White to light yellow powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0% (Total Virginiamycin)
Composition (M1:S1 Ratio)	Approx. 70:30 (Contact for specific ratio)
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 1.0%
Heavy Metals	≤ 20 ppm

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