Description

1-Cyano-3-(Methylthio)-4,5,6,7-Tetrahydrobenzo(C)Thiophen-4-One is a high-value, heterocyclic organic compound featuring a fused tetrahydrobenzothiophene core functionalized with cyano and methylthio groups. This unique molecular architecture makes it a critical advanced pharmaceutical intermediate (API) and a versatile building block in organic synthesis. It is primarily sought after by R&D and production teams in the pharmaceutical, agrochemical, and specialty chemical industries for developing novel active ingredients and complex molecules.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, and metabolic diseases.
• Agrochemical Synthesis: Serves as a building block for developing new-generation herbicides, fungicides, and insecticides with enhanced efficacy and selectivity.
• Material Science Research: Used in the development of organic semiconductors, conductive polymers, and non-linear optical (NLO) materials due to its electron-withdrawing cyano group and sulfur heterocycle.
• Ligand and Catalyst Development: Employed in organometallic chemistry to create novel ligands for catalysis and metal-organic frameworks (MOFs).
• Dye and Pigment Intermediate: Acts as a precursor for synthesizing specialized dyes and pigments with specific light-absorption properties.
• Academic & Contract Research: A valuable reagent for methodological studies in organic chemistry, including cyclization and functional group transformation reactions.

Basic Information

Product Name	1-Cyano-3-(Methylthio)-4,5,6,7-Tetrahydrobenzo(C)Thiophen-4-One
CAS No.	175202-52-5
Molecular Formula	C11H11NOS2
Molecular Weight	237.34 g/mol
Synonyms	4-Oxo-4,5,6,7-tetrahydro-1-benzothiophene-3-carbonitrile, 3-(methylthio)-; 3-(Methylthio)-4-oxo-4,5,6,7-tetrahydro-1-benzothiophene-1-carbonitrile; 4,5,6,7-Tetrahydro-3-(methylthio)-4-oxobenzo[c]thiophene-1-carbonitrile; Tetrahydrobenzo[c]thiophen-4-one, 1-cyano-3-(methylthio)-; 1-Cyano-3-methylsulfanyl-4,5,6,7-tetrahydro-1-benzothiophen-4-one
EINECS	Contact for details

Quality Control

Our 1-Cyano-3-(Methylthio)-4,5,6,7-Tetrahydrobenzo(C)Thiophen-4-One is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and batch-to-batch consistency suitable for demanding R&D and scale-up processes. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and incompatible materials. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Off-white to light yellow 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%
Heavy Metals	≤ 20 ppm

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