Description

(4Aalpha,7Beta,8Aalpha)-3,4,4A,7,8,8A-Hexahydro-3,3,6,7-Tetramethyl-1H-2-Benzopyran is a high-purity, specialized organic compound with a complex fused-ring structure, serving as a valuable intermediate in advanced chemical synthesis. Its defined stereochemistry and molecular framework make it a critical building block for researchers and manufacturers developing novel compounds in the pharmaceutical and fragrance sectors. This product is essential for B2B clients seeking a reliable source of a consistent, high-quality chiral intermediate to support complex R&D and scale-up processes.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of new active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring complex stereochemistry.
• Fragrance and Flavor Synthesis: Used as a precursor in the creation of sophisticated aroma chemicals and specialty odorants, leveraging its tetramethyl-substituted benzopyran structure.
• Organic Synthesis Building Block: Employed in academic and industrial research for constructing complex polycyclic molecules and exploring novel chemical reactions.
• Agrochemical Research: Potential intermediate in the development of new crop protection agents and specialty agrochemicals.
• Material Science Research: Investigated as a monomer or additive for creating polymers with specific optical or structural properties.

Basic Information

Product Name	(4Aalpha,7Beta,8Aalpha)-3,4,4A,7,8,8A-Hexahydro-3,3,6,7-Tetramethyl-1H-2-Benzopyran
CAS No.	93904-60-0
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; 3,3,6,7-Tetramethyl-1,2,3,4,4a,7,8,8a-octahydro-2-benzopyran; 93904-60-0; (4aR,7S,8aR)-3,4,4a,7,8,8a-Hexahydro-3,3,6,7-tetramethyl-1H-2-benzopyran (stereoisomer)
EINECS	Contact for details

Quality Control

Our (4Aalpha,7Beta,8Aalpha)-3,4,4A,7,8,8A-Hexahydro-3,3,6,7-Tetramethyl-1H-2-Benzopyran is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles, verified by advanced analytical techniques including HPLC, GC, and NMR. We are committed to meeting the stringent requirements of pharmaceutical and research-grade intermediates.

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). This compound is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed to minimize exposure to atmospheric moisture and light to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Specific Rotation	Contact for details

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