Description

4,8-Ethano-S-Indacen-9-One,1,2,3,4,4A,5,7A,8-Octahydro-,(4R,4As,7Ar,8S)-Rel-(9Ci) is a high-purity, stereochemically defined advanced pharmaceutical intermediate (API intermediate) with the CAS number 796972-27-5. This compound is valued for its complex polycyclic structure, which serves as a critical building block in the synthesis of novel active pharmaceutical ingredients. It is primarily required by research institutions and pharmaceutical manufacturers engaged in the development of complex organic molecules, particularly for central nervous system (CNS) and anti-inflammatory drug candidates.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the multi-step synthesis of complex drug molecules.
• Organic Synthesis Research: Used in academic and industrial R&D for constructing intricate polycyclic frameworks.
• Asymmetric Catalysis Studies: Serves as a substrate or ligand precursor in the development of new catalytic systems.
• Material Science Precursor: Potential starting material for the synthesis of specialized organic electronic materials.
• Reference Standard: Used as an analytical standard for quality control and method development in pharmaceutical analysis.

Basic Information

Product Name	4,8-Ethano-S-Indacen-9-One,1,2,3,4,4A,5,7A,8-Octahydro-,(4R,4As,7Ar,8S)-Rel-(9Ci)
CAS No.	796972-27-5
Molecular Formula	C₁₄H₁₈O
Molecular Weight	202.29 g/mol
Synonyms	(4R,4aS,7aR,8S)-rel-1,2,3,4,4a,5,7a,8-Octahydro-4,8-ethano-S-indacen-9-one; (4R,4aS,7aR,8S)-rel-1,2,3,4,4a,5,7a,8-Octahydro-4,8-ethanoindacen-9-one; 4,8-Ethano-S-indacen-9-one, 1,2,3,4,4a,5,7a,8-octahydro-, (4R,4aS,7aR,8S)-rel-; rel-(4R,4aS,7aR,8S)-1,2,3,4,4a,5,7a,8-Octahydro-4,8-ethanoindacen-9-one; 796972-27-5; (4R,4aS,7aR,8S)-1,2,3,4,4a,5,7a,8-Octahydro-4,8-ethanoindacen-9-one (relative configuration)
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. We provide comprehensive analytical data including HPLC purity, chiral purity, and structural confirmation via spectroscopic methods. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request. Our quality management system supports the stringent requirements for pharmaceutical R&D and cGMP manufacturing.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). The product should be kept under an inert atmosphere if long-term stability is required. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% de
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.