Description

6,6-Dimethyl-3-(Methylthio)-4,5,6,7-Tetrahydrobenzo[C]Thiophen-4-One is a high-purity, specialized heterocyclic building block of significant interest in advanced organic synthesis. This compound matters for its role as a key intermediate in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals, where its unique fused thiophene structure enables the creation of complex molecular architectures. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries seeking to innovate new therapeutic and crop protection solutions.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Serves as a key precursor in the development of new-generation herbicides, fungicides, and insecticides with enhanced efficacy.
• Material Science Research: Used in the research and development of organic electronic materials, such as semiconductors and conductive polymers, due to its thiophene-based core.
• Fine Chemical Production: Employed as a versatile synthon for constructing complex heterocyclic compounds in custom synthesis and contract manufacturing.
• Academic & Industrial R&D: A valuable reagent for methodological studies in organic chemistry, including catalysis and new bond-forming reactions.

Basic Information

Item	Detail
Product Name	6,6-Dimethyl-3-(Methylthio)-4,5,6,7-Tetrahydrobenzo[C]Thiophen-4-One
CAS No.	172516-40-4
Molecular Formula	C11H14OS2
Molecular Weight	226.36 g/mol
Synonyms	6,6-Dimethyl-3-(methylthio)-4,5,6,7-tetrahydro-1-benzothiophen-4-one; 4H-4-Oxo-6,6-dimethyl-3-methylthiobenzo[c]thiophene; 3-(Methylthio)-6,6-dimethyl-4,5,6,7-tetrahydrobenzo[c]thiophen-4-one; 6,6-Dimethyl-3-methylsulfanyl-4,5,6,7-tetrahydro-1-benzothiophen-4-one; 172516-40-4; Tetrahydrobenzothiophenone derivative
EINECS	Contact for details

Quality Control

Our 6,6-Dimethyl-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 consistent batch-to-batch reliability. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. The product is light-sensitive and should be stored away from light as indicated.

Specification

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