Description

2-[(E)-2-[(1S,2R,4As,8Ar)-1,2,3,4,4A,7,8,8A-Octahydro-1,2,4A,5-Tetramethylnaphthalen-1-Yl]Ethylidene]Butanedial is a high-purity, specialized sesquiterpene derivative with a complex, stereochemically defined structure. This compound is valued for its role as a key chiral intermediate in the synthesis of biologically active molecules, offering precise control over final product stereochemistry. It is primarily sought by research institutions and manufacturers in the pharmaceutical, agrochemical, and fine chemical sectors for advanced synthesis projects.

Application

• Pharmaceutical Intermediate: A critical chiral building block for the synthesis of complex drug candidates, particularly in steroid and terpenoid-based therapeutic research.
• Agrochemical Synthesis: Used in the development of advanced pesticides and herbicides where specific stereochemistry is required for biological activity.
• Fine Chemical Production: Serves as a starting material or intermediate for high-value specialty chemicals, including flavors, fragrances, and advanced materials.
• Academic & Industrial Research: Employed in organic chemistry research for methodological studies, asymmetric synthesis, and natural product total synthesis.
• Reference Standard: Supplied as a high-purity analytical standard for quality control and method development in analytical laboratories.

Basic Information

Product Name	2-[(E)-2-[(1S,2R,4As,8Ar)-1,2,3,4,4A,7,8,8A-Octahydro-1,2,4A,5-Tetramethylnaphthalen-1-Yl]Ethylidene]Butanedial
CAS No.	55890-21-6
Molecular Formula	C20H30O3
Molecular Weight	318.45 g/mol
Synonyms	(1S,2R,4aS,8aR)-1,2,3,4,4a,7,8,8a-Octahydro-1,2,4a,5-tetramethylnaphthalene-1-acetaldehyde, α-(2-Oxoethylidene)-; 2-[(1E)-2-[(1S,2R,4aS,8aR)-1,2,3,4,4a,7,8,8a-Octahydro-1,2,4a,5-tetramethyl-1-naphthalenyl]ethylidene]butanedial; A Sesquiterpene Dialdehyde Derivative; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Every batch of this advanced intermediate is produced and tested under a strict quality management system. We employ advanced analytical techniques including HPLC, GC, and NMR to ensure identity, purity, and stereochemical integrity. A comprehensive Certificate of Analysis (COA) detailing purity, chiral purity (enantiomeric excess), and impurity profiles is provided with each shipment to support your regulatory and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. This compound is easily oxidized and light-sensitive; prolonged exposure to air, light, or elevated temperatures should be avoided to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% e.e.
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.