Description

4-Oxo-2,3-Dihydro-4H-1-Benzothiopyran 1-Oxide is a versatile heterocyclic building block and key synthetic intermediate. This compound is valued for its unique fused benzothiopyranone structure, which is integral to the development of novel chemical entities. It is primarily sought after by research and development chemists in the pharmaceutical and agrochemical industries for applications in medicinal chemistry and material science.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting neurological and metabolic disorders.
• Agrochemical Research: Used in the development of new active ingredients for crop protection products, such as fungicides and herbicides.
• Organic Synthesis Building Block: Serves as a versatile scaffold for constructing complex heterocyclic compounds in academic and industrial research.
• Material Science: Investigated for its potential in creating advanced organic materials with specific electronic or photophysical properties.
• Chemical Reference Standard: Employed as an analytical standard for quality control and method development in chemical manufacturing.

Basic Information

Product Name	4-Oxo-2,3-Dihydro-4H-1-Benzothiopyran 1-Oxide
CAS No.	26524-91-4
Molecular Formula	C9H6O2S
Molecular Weight	178.21 g/mol
Synonyms	2,3-Dihydro-4H-1-benzothiopyran-4-one 1-oxide; 4H-1-Benzothiopyran-4-one, 2,3-dihydro-, 1-oxide; 2,3-Dihydro-1-benzothiopyran-4-one 1-oxide; 4-Oxo-2,3-dihydro-4H-1-benzothiopyran-1-oxide; 4-Oxo-3,4-dihydro-2H-1-benzothiopyran 1-oxide; 1-Oxido-2,3-dihydro-4H-1-benzothiopyran-4-one; 4H-1-Benzothiopyran-4-one, 2,3-dihydro-, 1-oxide
EINECS	Contact for details

Quality Control

Our 4-Oxo-2,3-Dihydro-4H-1-Benzothiopyran 1-Oxide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and development applications. A comprehensive Certificate of Analysis (COA) is provided with every shipment, detailing all relevant specifications.

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). This product is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.