Description

6-Methyl-4-oxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonyl chloride is a high-purity, reactive sulfonyl chloride derivative, a critical building block in advanced organic synthesis. Its value lies in its role as a versatile electrophilic intermediate for introducing the sulfonamide or sulfonate functional group into complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for the development of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drug candidates, including potential enzyme inhibitors and receptor modulators.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides where the sulfonyl moiety is a critical pharmacophore.
• Material Science Research: Serves as a monomer or cross-linking agent in the creation of specialty polymers with specific sulfone-based properties.
• Chemical Biology Probes: Employed in the design and synthesis of activity-based probes (ABPs) for studying enzyme function and target engagement.
• Dye and Pigment Manufacturing: Intermediate for synthesizing sulfur-containing dyes and functional pigments.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom chemical synthesis services targeting complex, sulfonylated target molecules.

Basic Information

Item	Detail
Product Name	6-Methyl-4-oxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonyl chloride
CAS No.	120279-87-0
Molecular Formula	C9H7ClO3S3
Molecular Weight	310.80 g/mol
Synonyms	6-Methyl-4-oxo-4,5,6,7-tetrahydrothieno[2,3-b]thiopyran-2-sulfonyl chloride; 4H-Thieno[2,3-b]thiopyran-2-sulfonyl chloride, 5,6-dihydro-6-methyl-4-oxo-; Thienothiopyran sulfonyl chloride derivative; 120279-87-0; 6-Methyl-4-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-2-sulfonyl chloride (related structural name); TTP-SO2Cl
EINECS	Contact for details

Quality Control

Our production of 6-Methyl-4-oxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonyl chloride adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. We provide a detailed Certificate of Analysis (COA) with each shipment, ensuring traceability and compliance with your research or manufacturing specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its reactivity as a strong acid/organic solvent derivative, it should be kept under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent hydrolysis or degradation. Recommended storage temperature is 2-8°C for optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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