Description

(S,3E,7E)-α,α,4,8-Tetramethyl-3,7-Cyclodecadiene-1-Methanol CAS NO 21657-90-9 is a high-purity, chiral sesquiterpene alcohol derivative with a complex cyclic structure. This compound matters for its role as a versatile and valuable chiral intermediate in the synthesis of fine chemicals and complex natural products. Industries requiring high-purity chiral building blocks for pharmaceuticals, advanced fragrance compounds, and specialty agrochemicals are the primary users of this material.

Application

• Pharmaceutical Intermediate: Serves as a critical chiral building block in the synthesis of active pharmaceutical ingredients (APIs) and complex drug candidates.
• Fragrance & Flavor Synthesis: Used in the production of high-value, sophisticated fragrance molecules and flavoring agents due to its unique structural backbone.
• Agrochemical Research: Acts as a key intermediate in the development of novel, biologically active compounds for crop protection.
• Organic Synthesis & Catalysis: Employed in academic and industrial research for studying stereoselective reactions and developing new catalytic methodologies.
• Fine Chemical Production: Utilized in the manufacture of other specialty chemicals requiring its specific stereochemistry and functional groups.
• Material Science Precursor: Investigated as a starting material for synthesizing specialized polymers or liquid crystals with unique properties.

Basic Information

Product Name	(S,3E,7E)-α,α,4,8-Tetramethyl-3,7-Cyclodecadiene-1-Methanol
CAS No.	21657-90-9
Molecular Formula	C₁₅H₂₄O
Molecular Weight	220.35 g/mol
Synonyms	(S,E,E)-α,α,4,8-Tetramethyl-3,7-cyclodecadiene-1-methanol; (3S,3E,7E)-3,7,11-Trimethyl-1,3,6,10-dodecatetraen-3-ol (related structure); (S)-(-)-α,α,4,8-Tetramethyl-3,7-cyclodecadiene-1-methanol; NSC 334365; (S)-3,7,11-Trimethyl-1,3,6,10-dodecatetraen-3-ol; (S,E,E)-Nerolidol isomer; Chiral Sesquiterpene Alcohol Intermediate
EINECS	Contact for details

Quality Control

Our (S,3E,7E)-α,α,4,8-Tetramethyl-3,7-Cyclodecadiene-1-Methanol is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity analysis by HPLC and GC, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment. We can support development projects with custom purity grades and analytical data packages.

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 material is light-sensitive and easily oxidized; prolonged exposure to air, light, or elevated temperatures should be avoided to maintain purity and chiral integrity. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee
Specific Rotation [α]	Contact for details
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.