Description

cis-1,2-Dimethylcyclopropane CAS NO 930-18-7 is a highly volatile, small-ring cyclic hydrocarbon featuring a strained cyclopropane core with two methyl groups in a cis configuration. This unique structure makes it a valuable and versatile building block in advanced organic synthesis and materials research. It is primarily sought after by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries for applications requiring precise stereochemistry and ring-strain reactivity.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the synthesis of complex drug molecules, leveraging the reactivity of the strained cyclopropane ring.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides where the dimethylcyclopropane moiety can impart specific biological activity.
• Organic Synthesis Building Block: Employed in Diels-Alder reactions, cycloadditions, and other ring-opening or functionalization reactions to construct more complex molecular architectures.
• Materials Science Research: Investigated as a monomer or precursor for developing polymers with unique thermal or mechanical properties derived from the rigid cyclopropane structure.
• Catalysis & Ligand Development: Acts as a precursor for synthesizing specialized ligands or organometallic complexes used in asymmetric catalysis.
• Flavor & Fragrance Chemistry: Potential use in the synthesis of specialty aroma chemicals due to its volatile and distinct hydrocarbon profile.

Basic Information

Product Name	cis-1,2-Dimethylcyclopropane
CAS No.	930-18-7
Molecular Formula	C5H10
Molecular Weight	70.13 g/mol
Synonyms	cis-1,2-Dimethylcyclopropane; (1R,2S)-1,2-Dimethylcyclopropane; (1S,2R)-1,2-Dimethylcyclopropane; 1,2-Dimethylcyclopropane (cis); Cyclopropane, 1,2-dimethyl-, (1R,2S)-rel-; (cis)-1,2-Dimethylcyclopropane; NSC 74144
EINECS	Contact for details

Quality Control

Our cis-1,2-Dimethylcyclopropane is produced and handled under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC and GC-MS, to ensure high chemical and isomeric purity. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming identity, purity, and absence of critical impurities.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile nature, store in a cool, well-ventilated place, away from heat, sparks, and open flames. Recommended storage temperature is 2-8°C (refrigerated) to minimize evaporation and maintain stability. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Colorless liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0% (cis-isomer)
Water Content (KF)	≤ 0.1%
Non-volatile Residue	≤ 0.01%

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