Description

Validamycins are a group of aminoglycoside antibiotics produced by *Streptomyces hygroscopicus* var. *limoneus*, with the primary component being Validamycin A. This product is essential for its potent and specific antifungal activity, particularly against soil-borne pathogens that cause sheath blight and other plant diseases. It is a critical tool for agricultural professionals and formulators seeking effective, systemic crop protection solutions with a favorable environmental profile.

Application

• Agricultural Fungicide: Primary use as a systemic fungicide for controlling sheath blight (*Rhizoctonia solani*) in rice, as well as diseases in vegetables, turf, and other crops.
• Plant Disease Management: Used in integrated pest management (IPM) programs due to its targeted mode of action and low toxicity to non-target organisms.
• Agrochemical Formulation: A key active ingredient in the manufacture of soluble concentrates (SL), wettable powders (WP), and other commercial pesticide formulations.
• Seed Treatment: Applied as a seed coating or dressing to protect seedlings from early-stage fungal infections.
• Soil Treatment: Used for soil drenching or incorporation to reduce pathogen load in the rhizosphere.
• Research & Development: Serves as a reference standard and biochemical tool in agricultural and microbiological research.

Basic Information

Product Name	Validamycins
CAS No.	50642-14-3
Molecular Formula	C20H35NO13 (Validamycin A)
Molecular Weight	497.50 g/mol (Validamycin A)
Synonyms	Validamycin A; Validamycin; Valimon; Sheathmar; Antibiotic SF-2494; Antibiotic 66-40B; D-JL-02; Jinggangmycin; 1,5,6-Tridesoxy-4-O-β-D-glucopyranosyl-5-(hydroxymethyl)-1-[[2,4,5/3,6]-6-(hydroxymethyl)-2,3,4-cyclohexanetriol]amino]-D-chiro-inositol
EINECS	256-661-3

Quality Control

Our Validamycins are manufactured under a strict quality management system. Each batch is tested to ensure high potency, purity, and consistency, meeting the specifications required for agrochemical active ingredients. A comprehensive Certificate of Analysis (COA), detailing assay, related substances, and physical parameters, is provided with every shipment to guarantee supply reliability and product performance.

Storage

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

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/IR)	Conforms to reference standard
Assay (Validamycin A, HPLC)	≥ 70.0% (Technical Grade)
Water Content (Karl Fischer)	≤ 8.0%
pH (10% aqueous solution)	5.0 - 7.0
Residue on Ignition	≤ 1.0%

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