Description

3H-3A,6-Methano-2,1-Benzisothiazole,4,5,6,7-Tetrahydro-8,8-Dimethyl-7-Methylene-,2,2-Dioxide(9Ci) is a complex, high-value heterocyclic compound featuring a fused bicyclic structure with a sulfone group. This unique molecular architecture makes it a critical advanced intermediate for the synthesis of specialized fine chemicals and active pharmaceutical ingredients (APIs). It is primarily sought by R&D chemists and process development teams in the pharmaceutical, agrochemical, and advanced materials sectors for constructing novel molecular scaffolds.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those targeting neurological or anti-inflammatory pathways.
• Agrochemical Research: Serves as a precursor for developing new-generation herbicides or insecticides with unique modes of action.
• Material Science: Potential monomer or additive for creating polymers with specific thermal or optical properties.
• Organic Synthesis: Valuable scaffold in academic and industrial research for exploring new chemical reactions and creating complex heterocyclic libraries.
• Ligand & Catalyst Development: The rigid, functionalized structure can be utilized to develop novel chiral ligands or organocatalysts for asymmetric synthesis.

Basic Information

Item	Details
Product Name	3H-3A,6-Methano-2,1-Benzisothiazole,4,5,6,7-Tetrahydro-8,8-Dimethyl-7-Methylene-,2,2-Dioxide(9Ci)
CAS No.	791067-23-7
Molecular Formula	C12H16NO2S
Molecular Weight	238.33 g/mol
Synonyms	7-Methylene-8,8-dimethyl-4,5,6,7-tetrahydro-3a,6-methano-2,1-benzisothiazole 2,2-dioxide; 8,8-Dimethyl-7-methylidene-4,5,6,7-tetrahydro-3a,6-methano-2,1-benzisothiazole 2,2-dioxide; 3H-3a,6-Methano-2,1-benzisothiazole, 4,5,6,7-tetrahydro-8,8-dimethyl-7-methylene-, 2,2-dioxide; 791067-23-7; 3a,6-Methano-2,1-benzisothiazole derivative.
EINECS	Contact for details

Quality Control

Every batch of this high-purity intermediate is produced under strict quality management protocols. We employ advanced analytical techniques including HPLC, GC-MS, and NMR to verify identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to ensure traceability and support your regulatory and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 1.0%

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