Description

(R)-Methyl 5-Bromo-4-Methylpentanoate is a high-purity chiral building block and synthetic intermediate of significant value in advanced organic synthesis. Its defined stereochemistry and reactive bromo-ester functionality make it a critical precursor for constructing complex, optically active molecules. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing active pharmaceutical ingredients (APIs) and fine chemicals where stereochemical control is paramount.

Application

• Pharmaceutical Intermediate: Key chiral precursor in the synthesis of novel APIs, especially for central nervous system (CNS) and cardiovascular drugs.
• Agrochemical Synthesis: Building block for creating enantiomerically pure herbicides, fungicides, and plant growth regulators.
• Asymmetric Catalysis Research: Valuable substrate for developing and testing new chiral catalysts and methodologies.
• Peptidomimetics & Bioactive Molecules: Used to introduce chiral, non-natural amino acid fragments into peptide backbones and other bioactive compounds.
• Material Science: Potential monomer or intermediate for synthesizing specialized polymers with unique optical or mechanical properties.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs for the production of client-specific target molecules under cGMP conditions.

Basic Information

Product Name	(R)-Methyl 5-Bromo-4-Methylpentanoate
CAS No.	909879-22-7
Molecular Formula	C7H13BrO2
Molecular Weight	209.08 g/mol
Synonyms	(R)-Methyl 5-bromo-4-methylpentanoate; (R)-5-Bromo-4-methylpentanoic acid methyl ester; Methyl (R)-5-bromo-4-methylvalerate; (R)-5-Bromo-4-methylvaleric acid methyl ester; (R)-Methyl 5-bromo-4-methylvalerate; (R)-5-Bromo-4-methyl-pentanoic acid methyl ester; (R)-Methyl 5-bromo-4-methylpentanoate CAS 909879-22-7
EINECS	Contact for details

Quality Control

Our (R)-Methyl 5-Bromo-4-Methylpentanoate is produced under strict quality management systems to ensure batch-to-batch consistency and high enantiomeric purity. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing chiral purity (by chiral HPLC or GC), chemical purity, and identity confirmation. We adhere to relevant industry standards for fine chemical intermediates, and custom synthesis can be performed under cGMP guidelines for advanced pharmaceutical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. For long-term storage, consider inert atmosphere packing to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
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.