Description

Viridinomycin is a naturally occurring antifungal macrolide antibiotic isolated from Streptomyces viridochromogenes. It exhibits potent activity against phytopathogenic fungi and is valued for its unique mode of action involving inhibition of mitochondrial electron transport. This makes it particularly relevant for research in agricultural fungicide development, antifungal resistance mechanisms, and mitochondrial biology. Researchers and agrochemical developers seeking highly selective, biologically validated antifungal reference standards require Viridinomycin CAS NO 56509-88-7 for rigorous experimental work.

Application

• Agricultural research: Mode-of-action studies against plant-pathogenic fungi (e.g., Botrytis, Fusarium, Rhizoctonia)
• Antifungal resistance profiling and cross-resistance evaluation in laboratory strains
• Mitochondrial function studies — specifically complex I and III inhibition assays in isolated organelles or cell models
• Biochemical probe development for electron transport chain research
• Reference standard for HPLC and LC-MS method validation in residue analysis and quality control labs
• Lead compound optimization in medicinal chemistry programs targeting fungal pathogens
• Comparative efficacy screening in high-throughput antifungal discovery platforms
• Stability and formulation studies for novel biofungicide delivery systems

Basic Information

Product Name	Viridinomycin
CAS No.	56509-88-7
Molecular Formula	C34H51NO11
Molecular Weight	665.78 g/mol
Synonyms	Viridinomycin A; Viridinomycin B; Viridinomycin C; Antibiotic 189-235; NSC 113119; Streptomyces viridochromogenes metabolite; 34-Dehydroviridinomycin; (3R,4S,5S,6R,7R,8R,9S,10R,11R,12S,13S,14R,15R,16S)-3,4,5,6,7,8,9,10,11,12,13,14,15,16-Tetradecahydro-3-hydroxy-4,6,8,10,12,14-hexamethyl-1H-cyclopenta[a]phenanthrene-1,7,11,13-tetraone
EINECS	Not listed (not assigned)

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request. Each batch of Viridinomycin is tested for identity (IR, NMR), assay (HPLC), related substances, residual solvents, heavy metals, and microbiological purity. Testing follows ACS, EP, and USP general chapters where applicable, supporting use in regulated research environments.

Storage

Preserve in a tightly closed container, protected from light. Store at 2–8 °C under inert atmosphere (nitrogen or argon) to prevent degradation. Due to its hygroscopic nature, maintain low humidity conditions (<30% RH) and minimize exposure to ambient air during handling.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Related Substances	≤ 2.0% total impurities
Residual Solvents	Meets ICH Q3C Class 3 limits
Water Content (KF)	≤ 2.0%
Heavy Metals	≤ 10 ppm
Microbial Limits	Total aerobic count ≤ 100 CFU/g; Absence of E. coli, Salmonella, and Staphylococcus aureus

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