Description

2H-Thiopyran-3,5(4H,6H)-Dione is a specialized heterocyclic sulfur compound with the CAS number 6881-49-8. This chemical serves as a valuable synthetic intermediate and building block in advanced organic synthesis, enabling the development of novel molecular architectures. It is primarily sought after by research and development chemists in the pharmaceutical and agrochemical industries for creating new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly those targeting neurological and metabolic disorders.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and plant growth regulators.
• Material Science: Serves as a precursor for functional polymers and advanced organic electronic materials.
• Chemical Synthesis: Acts as a versatile reagent for constructing complex thiopyran and dione-containing heterocycles.
• Academic & Industrial R&D: Employed in research laboratories for methodological studies and exploring new chemical reactions.

Basic Information

Product Name	2H-Thiopyran-3,5(4H,6H)-Dione
CAS No.	6881-49-8
Molecular Formula	C5H6O2S
Molecular Weight	130.16 g/mol
Synonyms	3,5-Dioxo-2H-thiopyran; 3,5-Dioxo-2H-thiopyran-4,6-dihydro; 4,6-Dihydro-2H-thiopyran-3,5-dione; Thiomaleic anhydride; 2H-Thiopyran-3,5-dione; 4,6-Dihydro-2H-thiopyran-3,5-dione; 6881-49-8
EINECS	Contact for details

Quality Control

Our 2H-Thiopyran-3,5(4H,6H)-Dione is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity suitable for research and development applications. We provide comprehensive analytical data, including HPLC purity, identity confirmation (IR, NMR), and impurity profiling. A Certificate of Analysis (COA) is available for every batch upon request, detailing all relevant specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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