Description

Cyclopentane, 1-Bromo-1-Methyl- CAS NO 19872-99-2 is a halogenated cyclopentane derivative, a versatile and reactive intermediate in advanced organic synthesis. Its value lies in its unique structure, which serves as a crucial building block for constructing complex molecular frameworks in pharmaceutical and agrochemical research. This compound is essential for R&D chemists and process development scientists working on novel active ingredients, specialty polymers, and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), particularly those requiring functionalized cyclopentane rings.
• Agrochemical Synthesis: Used in the research and development of advanced pesticides, herbicides, and fungicides where its bromine atom offers a site for further functionalization.
• Organic Synthesis Reagent: Serves as a versatile alkylating agent and a precursor for Grignard reagents (1-Bromo-1-methylcyclopentylmagnesium) in cross-coupling reactions.
• Material Science Research: Intermediate in the development of specialty polymers, liquid crystals, and other advanced materials with tailored properties.
• Chemical Research & Development: A valuable tool for exploring new reaction pathways and synthesizing complex, high-value organic molecules in academic and industrial labs.

Basic Information

Product Name	Cyclopentane, 1-Bromo-1-Methyl-
CAS No.	19872-99-2
Molecular Formula	C6H11Br
Molecular Weight	163.06 g/mol
Synonyms	1-Bromo-1-methylcyclopentane; (1-Bromo-1-methyl)cyclopentane; 1-Methyl-1-bromocyclopentane; Bromomethylcyclopentane; NSC 9375
EINECS	243-375-6

Quality Control

Our Cyclopentane, 1-Bromo-1-Methyl- is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide full traceability and detailed Certificates of Analysis (COA) with every shipment, guaranteeing it meets the stringent requirements for research and process development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and organic solvents. Recommended storage temperature is between 2°C and 25°C. Keep container tightly sealed when not in use to prevent moisture ingress and volatilization.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Purity (GC Area %)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.4780 - 1.4820
Density (g/mL at 20°C)	1.30 - 1.35

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