Description

3,4,4A,7,8,8A-Hexahydro-2,5,8,8A-Tetramethyl-2-Vinyl-2H-1-Benzopyran is a specialized organic compound with the CAS number 54990-54-4, valued for its unique bicyclic structure and functional vinyl group. This chemical is a key intermediate and building block in advanced organic synthesis, particularly for creating complex fragrance molecules and fine chemicals. It is primarily sought after by R&D laboratories and manufacturers in the fragrance, flavor, and pharmaceutical industries for its role in developing novel aromatic compounds and active ingredients.

Application

• Fragrance & Flavor Intermediate: A crucial building block for the synthesis of complex, woody, and ambergris-type fragrance molecules used in perfumery and flavoring.
• Fine Chemical Synthesis: Serves as a versatile intermediate in the multi-step synthesis of pharmaceuticals, agrochemicals, and other high-value specialty chemicals.
• Organic Research & Development: Used in academic and industrial R&D settings for exploring new synthetic pathways and developing novel organic compounds.
• Aroma Chemical Production: A key precursor in the manufacture of specific aroma chemicals that impart unique and long-lasting scent profiles.
• Polymer Modification: The reactive vinyl group allows for potential use in the modification of polymers to introduce specific functional properties.

Basic Information

Product Name	3,4,4A,7,8,8A-Hexahydro-2,5,8,8A-Tetramethyl-2-Vinyl-2H-1-Benzopyran
CAS No.	54990-54-4
Molecular Formula	C15H24O
Molecular Weight	220.35 g/mol
Synonyms	2H-1-Benzopyran, 3,4,4a,7,8,8a-hexahydro-2,5,8,8a-tetramethyl-2-vinyl-; 2-Vinyl-2,5,8,8a-tetramethyl-3,4,4a,7,8,8a-hexahydro-2H-1-benzopyran; 2-Vinyl-2,5,8,8a-tetramethyl-3,4,4a,7,8,8a-hexahydro-2H-chromene; Ambergris-type fragrance intermediate; Hexahydrotetramethylvinylbenzopyran
EINECS	Contact for details

Quality Control

Our 3,4,4A,7,8,8A-Hexahydro-2,5,8,8A-Tetramethyl-2-Vinyl-2H-1-Benzopyran is produced under strict quality management protocols. Every batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with each shipment to guarantee compliance with your research and production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Due to its properties of being easily oxidized (store under inert atmosphere) and highly volatile, containers must be kept tightly sealed and away from heat, sparks, and open flames. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Refractive Index (20°C)	1.485 - 1.495
Specific Gravity (20/20°C)	0.950 - 0.970

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