Description

Iturin A-4 CAS NO 83777-00-8 is a potent cyclic lipopeptide antibiotic belonging to the iturin family, biosynthesized by specific strains of *Bacillus subtilis*. This compound is valued for its strong antifungal and surfactant properties, making it a critical agent in bioprotection and formulation science. It is primarily sought by industries involved in agricultural biocontrol, pharmaceutical research, and the development of eco-friendly antimicrobial products.

Application

• Agricultural Biocontrol Agent: Used as a core active ingredient in bio-fungicides for protecting crops against pathogenic fungi like *Botrytis cinerea* and *Fusarium* species.
• Pharmaceutical Research: Serves as a reference standard and investigational compound in antimicrobial research due to its membrane-disrupting mechanism of action.
• Food Preservation: Explored as a natural preservative to inhibit mold and yeast growth in food products and packaging materials.
• Cosmetic & Personal Care: Incorporated into formulations for its antimicrobial and mild surfactant properties, helping to stabilize emulsions and protect against spoilage.
• Biomedical Material Coatings: Applied in R&D for creating antimicrobial surfaces on medical devices and implants.
• Industrial Fermentation Aid: Acts as a selective agent in microbial culture media and fermentation processes to control contamination.

Basic Information

Product Name	Iturin A-4
CAS No.	83777-00-8
Molecular Formula	C48H74N14O14
Molecular Weight	1047.2 g/mol
Synonyms	Iturin A4; Iturin A IV; Iturin A-4 Lipopeptide; Cyclo(L-Asn-D-Tyr-D-Asn-L-Gln-L-Pro-D-Asn-L-Ser) with β-Amino Fatty Acid; Antibiotic Iturin A4; Bacillus subtilis Lipopeptide A4
EINECS	Contact for details

Quality Control

Our Iturin A-4 is produced and tested under strict quality management systems. Each batch undergoes comprehensive analysis to ensure identity, purity, and potency, meeting the exacting standards required for research and industrial applications. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay purity and related substances.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C in a dry environment. This product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms
Assay (HPLC)	≥95.0%
Water Content (KF)	≤5.0%
Residue on Ignition	≤1.0%
Microbial Limits	Meets specified criteria

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