Description

Isoprothiolane is a systemic fungicide belonging to the dithiolane chemical class, valued for its protective and curative action against a range of fungal diseases. Its primary significance lies in its effectiveness against rice blast (*Pyricularia oryzae*), a major threat to global rice production, making it a critical tool for agricultural security. This product is essential for agrochemical formulators, agricultural cooperatives, and large-scale farming operations focused on rice and other cereal crops, where reliable disease management is paramount for yield protection.

Application

• Rice Blast Control: The primary and most significant application for the preventive and curative management of rice blast disease in paddy fields.
• Cereal Fungicide: Used in the protection of other cereal crops from various fungal pathogens that threaten yield and quality.
• Agrochemical Formulation: Serves as a key active ingredient in the manufacturing of emulsifiable concentrates (EC), wettable powders (WP), and other commercial fungicide formulations.
• Integrated Pest Management (IPM): An important component in resistance management strategies, often used in rotation with fungicides of different modes of action.
• Seed Treatment: Applied as a seed dressing to protect seedlings from early-season soil and seed-borne fungal infections.
• Disease Prevention in Horticulture: Has shown utility in controlling certain fungal diseases in selected fruit and vegetable crops under specific conditions.

Basic Information

Product Name	Isoprothiolane
CAS No.	50512-35-1
Molecular Formula	C12H18O4S2
Molecular Weight	290.40 g/mol
Synonyms	Dilsopropyl 1,3-dithiolan-2-ylidenemalonate; Fuji-one; SS-11946; NTN-9301; Isoprothiolan; 1,3-Dithiolan-2-ylidenepropanedioic acid diisopropyl ester; Dilsopropyl (1,3-dithiolan-2-ylidene)malonate
EINECS	256-599-6

Quality Control

Our Isoprothiolane is manufactured under a strict quality management system to ensure batch-to-batch consistency and high efficacy. The product undergoes comprehensive analytical testing, including assay by HPLC and checks for key impurities, to meet technical or formulated grade specifications. A Certificate of Analysis (COA) detailing purity, physical properties, and test results is provided with each shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Store separately from strong oxidizers and foodstuffs.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Moisture (KF)	≤ 0.5%
Specific Gravity (20°C)	1.10 - 1.15
Refractive Index (20°C)	1.510 - 1.520

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