Description

(3E,3As,4S)-3-Butylidene-5,6,6',7'-Tetrahydro-5β-Propylspiro[3H-3Aα,6α-Ethanoisobenzofuran-4(1H),1'(3'H)-Isobenzofuran]-1,3'-Dione is a complex, high-purity spirocyclic organic compound with a defined stereochemistry. This compound serves as a critical advanced intermediate or building block in sophisticated organic synthesis, particularly for pharmaceuticals and specialty materials. It is essential for research and development chemists in the pharmaceutical, agrochemical, and fine chemical industries who require structurally precise and stereochemically defined intermediates to develop novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, especially those targeting central nervous system (CNS) disorders or requiring complex spirocyclic architectures.
• Agrochemical Research: Used in the development of new-generation pesticides and herbicides with specific modes of action.
• Material Science: Potential precursor for organic electronic materials or liquid crystals due to its rigid, fused ring system.
• Academic & R&D: Serves as a valuable reference standard and starting material for methodological studies in synthetic organic chemistry.
• Fine Chemical Synthesis: Intermediate for creating complex fragrance molecules, dyes, or other specialty chemicals.

Basic Information

Product Name	(3E,3As,4S)-3-Butylidene-5,6,6',7'-Tetrahydro-5β-Propylspiro[3H-3Aα,6α-Ethanoisobenzofuran-4(1H),1'(3'H)-Isobenzofuran]-1,3'-Dione
CAS No.	81957-73-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Spiro[3H-3a,6a-ethanoisobenzofuran-4(1H),1'(3'H)-isobenzofuran]-1,3'-dione, 3-butylidene-5,6,6',7'-tetrahydro-5-propyl-, (3E,3aS,4S)-; (3E,3aS,4S)-3-Butylidene-5-propyl-5,6,6',7'-tetrahydrospiro[3H-3a,6a-ethanoisobenzofuran-4(1H),1'(3'H)-isobenzofuran]-1,3'-dione; 81957-73-5; Spirocyclic Isobenzofurandione Derivative; Advanced Spiro Intermediate.
EINECS	Contact for details

Quality Control

Our (3E,3As,4S)-3-Butylidene-5,6,6',7'-Tetrahydro-5β-Propylspiro[3H-3Aα,6α-Ethanoisobenzofuran-4(1H),1'(3'H)-Isobenzofuran]-1,3'-Dione is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and chiral purity analysis, to ensure identity, strength, and stereochemical purity. Certificates of Analysis (COA) with detailed chromatographic data are available upon request to support your regulatory and R&D documentation needs.

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 may be light-sensitive and/or moisture-sensitive; handle and store under an inert atmosphere if specified for your grade.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0% (Area %)
Chiral Purity	≥ 98.0% ee (by Chiral HPLC)
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.