Description

3A,10B-Dihydro-3A,10B-Dimethylthiepino[3,2-E]Isobenzofuran-1,3-Dione is a specialized heterocyclic organic compound featuring a fused thiepino-isobenzofuran-dione structure. This compound matters as a high-value chemical intermediate, prized for its unique molecular architecture which is conducive to further synthetic elaboration in advanced organic chemistry. It is primarily needed by research and development chemists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and complex molecules. The product, identified by CAS NO 55044-57-0, is supplied to meet the stringent purity requirements of modern process chemistry.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used in the development of new pesticides, herbicides, and fungicides with complex heterocyclic cores.
• Material Science: Investigated as a precursor for advanced organic electronic materials and specialty polymers.
• Academic & Industrial R&D: Employed in methodological studies and as a model compound in organic synthesis and catalysis research.
• Fine Chemical Synthesis: Utilized for the preparation of other sophisticated fine chemicals and custom-synthesized molecules.

Basic Information

Product Name	3A,10B-Dihydro-3A,10B-Dimethylthiepino[3,2-E]Isobenzofuran-1,3-Dione
CAS No.	55044-57-0
Molecular Formula	C₁₄H₁₂O₃S
Molecular Weight	260.31 g/mol
Synonyms	3a,10b-Dihydro-3a,10b-dimethylthiepino[3,2-e]isobenzofuran-1,3-dione; 3a,10b-Dihydro-3a,10b-dimethylthiepino[3,2-e]-1,3-isobenzofurandione; Thiepino[3,2-e]isobenzofuran-1,3-dione, 3a,10b-dihydro-3a,10b-dimethyl-; 55044-57-0; Dimethylthiepinoisobenzofurandione
EINECS	Contact for details

Quality Control

Our 3A,10B-Dihydro-3A,10B-Dimethylthiepino[3,2-E]Isobenzofuran-1,3-Dione is produced under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure high purity and batch-to-batch consistency suitable for research and process development. Comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, handling should be conducted under appropriate conditions to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.