Description

Cyclopropane, 2-Bromo-1-Ethynyl-1-Methyl-, cis- (9Ci) CAS NO 2568-78-7 is a specialized, high-value organobromine building block featuring a unique cis-substituted cyclopropane ring with an ethynyl group. This compound is prized for its structural complexity and reactivity, making it an essential intermediate in advanced synthetic chemistry. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical sectors for constructing novel molecular scaffolds and exploring new chemical spaces.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in medicinal chemistry programs targeting complex, three-dimensional structures.
• Agrochemical Research: Used in the development of new generation pesticides and herbicides, where the cyclopropane moiety can impart unique biological activity and stability.
• Material Science Precursor: Serves as a monomer or cross-linking agent in the research of advanced polymers and functional materials with tailored properties.
• Organic Synthesis Reagent: A versatile reagent for cyclopropanation reactions, [2+2] cycloadditions, and other transformations to create strained-ring systems in academic and industrial R&D.
• Ligand and Catalyst Development: Utilized in the design and synthesis of novel organometallic complexes and chiral ligands for asymmetric catalysis.

Basic Information

Product Name	Cyclopropane, 2-Bromo-1-Ethynyl-1-Methyl-, cis- (9Ci)
CAS No.	2568-78-7
Molecular Formula	C6H7Br
Molecular Weight	159.03 g/mol
Synonyms	cis-2-Bromo-1-ethynyl-1-methylcyclopropane; 1-Methyl-1-ethynyl-2-bromocyclopropane, cis-; 2-Bromo-1-ethynyl-1-methylcyclopropane; Bromoethynylmethylcyclopropane; (1R,2S)-2-Bromo-1-ethynyl-1-methylcyclopropane (enantiomer); Cyclopropane, 2-bromo-1-ethynyl-1-methyl-, (1R,2S)-; 2568-78-7
EINECS	Contact for details

Quality Control

Our production of Cyclopropane, 2-Bromo-1-Ethynyl-1-Methyl-, cis- (9Ci) adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for sensitive R&D applications. All materials are characterized by advanced analytical techniques including NMR, GC-MS, and HPLC. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This compound is light-sensitive (store away from light) and should be handled under an inert atmosphere when appropriate to maintain stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Purity (HPLC)	≥ 94.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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