Description

4-Bromo-2-[(1R,3S)-1,3-Dimethyl-2-Methylenecyclopentyl]-5-Methylphenol is a chiral, substituted phenolic compound featuring a unique cyclopentyl moiety, making it a valuable synthetic intermediate. This compound matters for its structural complexity, which is critical for constructing advanced molecular architectures in fine chemical and pharmaceutical research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced material sectors for use in asymmetric synthesis and as a building block for bioactive molecules.

Application

• Pharmaceutical Intermediate: Serves as a key chiral building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for candidates targeting central nervous system or metabolic disorders.
• Agrochemical Research: Used in the development of new generation pesticides and herbicides, where its bromophenol and terpene-like structure can contribute to specific biological activity.
• Ligand and Catalyst Development: Acts as a precursor for chiral ligands or organocatalysts used in asymmetric catalysis, enhancing stereoselectivity in synthetic transformations.
• Material Science: Investigated as a monomer or additive for specialty polymers, where its phenolic and bulky side group can impart unique thermal or optical properties.
• Academic & Industrial R&D: Employed in methodological studies and discovery chemistry for creating complex natural product analogs or novel chemical entities.

Basic Information

Product Name	4-Bromo-2-[(1R,3S)-1,3-Dimethyl-2-Methylenecyclopentyl]-5-Methylphenol
CAS No.	29424-17-7
Molecular Formula	C15H19BrO
Molecular Weight	295.22 g/mol
Synonyms	4-Bromo-2-[(1R,3S)-1,3-dimethyl-2-methylidenecyclopentyl]-5-methylphenol; (1R,3S)-4-Bromo-2-(1,3-dimethyl-2-methylidenecyclopentyl)-5-methylphenol; Phenol, 4-bromo-2-[(1R,3S)-1,3-dimethyl-2-methylenecyclopentyl]-5-methyl-; 2-(1,3-Dimethyl-2-methylidenecyclopentyl)-4-bromo-5-methylphenol; 4-Bromo-2-(1,3-dimethyl-2-methylidenecyclopentyl)-5-methylphenol; 29424-17-7; (1R,3S)-Isomer of 4-Bromo-2-(1,3-dimethyl-2-methylenecyclopentyl)-5-methylphenol
EINECS	Contact for details

Quality Control

Our 4-Bromo-2-[(1R,3S)-1,3-Dimethyl-2-Methylenecyclopentyl]-5-Methylphenol is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity verification, to ensure it meets the high standards required for research and development applications. Certificates of Analysis (COA) detailing identity, purity, and chiral excess are available upon request to support your regulatory and quality assurance needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place at 2-8°C for long-term stability. This compound is easily oxidized and light-sensitive. Allow the sealed container to reach room temperature before opening to minimize moisture ingress and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee (1R,3S)
Melting Point	Contact for details
Loss on Drying	≤ 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.