Description

(1S-Cis)-2,2-Dimethyl-3-(2-Methylprop-1-Enyl)Cyclopropanecarbonyl Chloride is a high-purity, optically active cyclopropane derivative used as a critical chiral building block in advanced organic synthesis. Its value lies in its role as a reactive acyl chloride intermediate, enabling the efficient introduction of the (1S-cis)-chrysanthemic acid moiety into target molecules. This compound is essential for researchers and manufacturers in the agrochemical and pharmaceutical industries, particularly for the synthesis of pyrethroid insecticides and other bioactive compounds requiring precise stereochemistry.

Application

• Key Intermediate for Pyrethroid Synthesis: A vital precursor in the manufacturing of potent, stereochemically-defined pyrethroid insecticides such as allethrin, prallethrin, and other analogs.
• Chiral Building Block in Pharmaceutical R&D: Used to construct complex molecules in medicinal chemistry where the (1S-cis)-chrysanthemate structure is required for biological activity.
• Fine Chemical Synthesis: Employed in custom synthesis and process development for creating specialty chemicals with specific stereochemical configurations.
• Agrochemical Product Development: Integral to the research and scale-up of new generation crop protection agents with improved efficacy and environmental profiles.

Basic Information

Item	Details
Product Name	(1S-Cis)-2,2-Dimethyl-3-(2-Methylprop-1-Enyl)Cyclopropanecarbonyl Chloride
CAS No.	56650-12-5
Molecular Formula	C10H15ClO
Molecular Weight	186.68 g/mol
Synonyms	(+)-trans-Chrysanthemoyl chloride; (1R,3R)-2,2-Dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropane-1-carbonyl chloride; (1R-trans)-2,2-Dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylic acid chloride; d-trans-Chrysanthemic acid chloride; (1R,3R)-Chrysanthemoyl chloride; (+)-trans-Chrysanthemic acid chloride
EINECS	Contact for details

Quality Control

Every batch of (1S-Cis)-2,2-Dimethyl-3-(2-Methylprop-1-Enyl)Cyclopropanecarbonyl Chloride is produced and tested under strict quality management systems to ensure high chemical purity and enantiomeric excess. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, assay, chiral purity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee (1S-cis)
Water Content (KF)	≤ 0.5%

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