Description

(3Ar,8Aα,10Aα)-3A,4A,5,8,8A,9,10,10A-Octahydro-4Aβ,9α-Dimethyl-3-Methylenefuro[2',3':5,6]Cyclohepta[1,2-C]Pyran-2,7(3H,4H)-Dione is a complex, high-purity organic compound with a fused polycyclic structure. This molecule serves as a critical advanced intermediate or pharmacophore building block in sophisticated organic syntheses, valued for its unique stereochemistry and functional groups. It is primarily sought after by pharmaceutical R&D and fine chemical sectors for the development of novel active ingredients and specialty materials.

Application

• Pharmaceutical Intermediate: Key chiral precursor in the synthesis of complex drug candidates, particularly in steroid-like or terpenoid-based therapeutic areas.
• Organic Synthesis Building Block: Used in advanced research to construct intricate polycyclic frameworks for novel materials and catalysts.
• Medicinal Chemistry Research: Serves as a core scaffold for structure-activity relationship (SAR) studies and library synthesis in drug discovery programs.
• Academic & Institutional Research: Utilized in chemical studies exploring novel reaction pathways, natural product synthesis, and stereochemical control.
• Fine Chemical Production: Intermediate in the multi-step manufacturing of high-value, low-volume specialty chemicals.

Basic Information

Product Name	(3Ar,8Aα,10Aα)-3A,4A,5,8,8A,9,10,10A-Octahydro-4Aβ,9α-Dimethyl-3-Methylenefuro[2',3':5,6]Cyclohepta[1,2-C]Pyran-2,7(3H,4H)-Dione
CAS No.	26305-91-9
Molecular Formula	C17H20O4
Molecular Weight	288.34 g/mol
Synonyms	Furo[2',3':5,6]cyclohepta[1,2-c]pyran-2,7-dione, 3a,4,5,8,8a,9,10,10a-octahydro-4a,9-dimethyl-3-methylene-, [3aR-(3aα,4aβ,8aα,9α,10aα)]-; 3a,4,5,8,8a,9,10,10a-Octahydro-4a,9-dimethyl-3-methylenefuro[2',3':5,6]cyclohepta[1,2-c]pyran-2,7-dione; CAS 26305-91-9; 3-Methylenefuro[2',3':5,6]cyclohepta[1,2-c]pyran-2,7-dione derivative.
EINECS	Contact for details

Quality Control

Our (3Ar,8Aα,10Aα)-3A,4A,5,8,8A,9,10,10A-Octahydro-4Aβ,9α-Dimethyl-3-Methylenefuro[2',3':5,6]Cyclohepta[1,2-C]Pyran-2,7(3H,4H)-Dione is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided, documenting key parameters such as assay, chiral purity, and impurity profiles. We support cGMP compliance for pharmaceutical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). The compound may be sensitive to prolonged exposure to heat and moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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