Description

(S)-2,3,5,6,9,9A-Hexahydro-1,1,7,9A-Tetramethyl-1H-Benzocycloheptene is a high-purity, chiral organic compound that serves as a critical intermediate in advanced chemical synthesis. Its defined stereochemistry and complex polycyclic structure make it a valuable building block for the development of novel active pharmaceutical ingredients (APIs) and specialty chemicals. This product is essential for research and production in the pharmaceutical, agrochemical, and fine chemical industries, where precise molecular architecture is required.

Application

• Pharmaceutical Intermediate: Key chiral synthon for the synthesis of novel therapeutic agents, particularly in central nervous system (CNS) and anti-inflammatory drug research.
• Agrochemical Synthesis: Used in the development of advanced pesticides and herbicides with specific stereochemical activity.
• Fine Chemical Production: Serves as a precursor for fragrances, flavors, and other high-value specialty chemicals requiring its unique benzocycloheptene core.
• Academic & Industrial R&D: A valuable reference standard and starting material for methodological studies in asymmetric synthesis and catalysis.
• Material Science Research: Investigated as a monomer or precursor for creating novel polymers with specific optical or structural properties.

Basic Information

Product Name	(S)-2,3,5,6,9,9A-Hexahydro-1,1,7,9A-Tetramethyl-1H-Benzocycloheptene
CAS No.	32540-28-6
Molecular Formula	C15H24
Molecular Weight	204.35 g/mol
Synonyms	(S)-1,1,7,9A-Tetramethyl-1,2,3,5,6,9,9A-heptahydro-4H-benzocycloheptene; (S)-1,1,7,9A-Tetramethyl-1,2,3,5,6,9,9A-heptahydro-4H-benzocyclohepten-4-one (keto form); (S)-1,1,7,9A-Tetramethyl-1,2,3,5,6,9,9a-heptahydro-4H-benzocyclohepten-4-ol; (S)-Ambrox; (S)-Ambroxide precursor; (S)-(-)-Ambrox; (1S,9aS)-1,1,7,9A-Tetramethyl-1,2,3,5,6,9,9a-heptahydro-4H-benzocyclohepten-4-one
EINECS	Contact for details

Quality Control

Our (S)-2,3,5,6,9,9A-Hexahydro-1,1,7,9A-Tetramethyl-1H-Benzocycloheptene is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity assay and impurity profiling, to ensure it meets the high standards required for pharmaceutical and fine chemical applications. Certificates of Analysis (COA) detailing identity, purity, and specific tests are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee (S-enantiomer)
Related Substances (HPLC)	Total impurities ≤ 2.0%
Any single unknown impurity	≤ 0.5%

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