Description

(4Aalpha,7Beta,8Abeta)-3,4,4A,7,8,8A-Hexahydro-3,3,6,7-Tetramethyl-1H-2-Benzopyran is a high-purity, synthetic organic compound belonging to the benzopyran class, valued for its defined stereochemistry and structural complexity. It serves as a critical advanced intermediate or building block in sophisticated organic synthesis, enabling the development of novel molecules with specific chiral configurations. This product is essential for R&D and production teams in the pharmaceutical, agrochemical, and fine chemical industries seeking reliable, high-quality chiral intermediates.

Application

This specialized benzopyran derivative is utilized in various advanced chemical synthesis pathways, including:

• Pharmaceutical Intermediate: Serves as a key chiral building block in the synthesis of potential active pharmaceutical ingredients (APIs), particularly for compounds targeting neurological or metabolic pathways.
• Agrochemical Research: Used in the development of new generation pesticides and herbicides where specific stereochemistry can influence biological activity and environmental profile.
• Fine Chemical Synthesis: Acts as a precursor for fragrances, flavors, and other specialty chemicals requiring complex, multi-cyclic structures.
• Material Science Research: Investigated as a monomer or additive for creating novel polymers with unique optical or thermal properties.
• Academic & Industrial R&D: Employed in methodological studies and as a reference standard in asymmetric synthesis and catalysis research.

Basic Information

Product Name	(4Aalpha,7Beta,8Abeta)-3,4,4A,7,8,8A-Hexahydro-3,3,6,7-Tetramethyl-1H-2-Benzopyran
CAS No.	93904-61-1
Molecular Formula	C15H24O
Molecular Weight	220.35 g/mol
Synonyms	1H-2-Benzopyran, 3,4,4a,7,8,8a-hexahydro-3,3,6,7-tetramethyl-, (4aR,7S,8aR)-rel-; rel-(4aR,7S,8aR)-3,4,4a,7,8,8a-Hexahydro-3,3,6,7-tetramethyl-1H-2-benzopyran; Tetramethylhexahydro-1H-2-benzopyran; Chiral benzopyran intermediate; Hexahydrotetramethyl-2-benzopyran.
EINECS	Contact for details

Quality Control

Our (4Aalpha,7Beta,8Abeta)-3,4,4A,7,8,8A-Hexahydro-3,3,6,7-Tetramethyl-1H-2-Benzopyran is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including chiral purity analysis by HPLC and GC, to ensure identity, strength, and purity. Certificates of Analysis (COA) detailing all specifications and test results are provided and available upon request to support your quality assurance protocols.

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 heat, sparks, and open flame. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Assay (HPLC/GC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% de (diastereomeric excess)
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.