Description

Thieno[3,2-B]Thiophene-3-Carboxylic Acid, 2-(Trimethylstannyl)-, Ethyl Ester is a specialized organotin derivative of a fused thiophene heterocycle, serving as a high-value synthetic building block. This compound is engineered for precision in advanced material science and pharmaceutical research, where its unique structure enables controlled cross-coupling reactions. It is primarily utilized by R&D chemists and process development scientists in the fields of organic electronics, polymer chemistry, and medicinal chemistry for constructing complex molecular architectures.

Application

• Organic Semiconductor Precursor: A key monomer in the synthesis of conjugated polymers and small molecules for organic field-effect transistors (OFETs) and organic photovoltaics (OPVs).
• Pharmaceutical Intermediate: Used in Stille cross-coupling reactions to introduce the thieno[3,2-b]thiophene moiety into potential drug candidates, particularly in kinase inhibitor research.
• Material Science Research: Serves as a building block for developing novel electroactive and photoactive materials with tailored electronic properties.
• Ligand and Catalyst Development: Employed in the preparation of organometallic complexes and catalysts for specialized synthetic transformations.
• Chemical Synthesis: Acts as a versatile intermediate for the functionalization of complex heterocyclic systems in academic and industrial R&D settings.

Basic Information

Product Name	Thieno[3,2-B]Thiophene-3-Carboxylic Acid, 2-(Trimethylstannyl)-, Ethyl Ester
CAS No.	2412678-09-0
Molecular Formula	C12H16O2S2Sn
Molecular Weight	383.13 g/mol
Synonyms	2-(Trimethylstannyl)thieno[3,2-b]thiophene-3-carboxylic acid ethyl ester; Ethyl 2-(trimethylstannyl)thieno[3,2-b]thiophene-3-carboxylate; Thieno[3,2-b]thiophene-2-trimethylstannane-3-carboxylic acid ethyl ester; TTT-CA-EE; Organotin thienothiophene ester; Stille reagent thienothiophene derivative
EINECS	Contact for details

Quality Control

Every batch of Thieno[3,2-B]Thiophene-3-Carboxylic Acid, 2-(Trimethylstannyl)-, Ethyl Ester is synthesized and purified under controlled conditions to ensure high chemical purity and lot-to-lot consistency. Our products undergo rigorous quality testing, including advanced chromatographic and spectroscopic methods, to ensure compliance with stringent R&D and process chemistry standards. A comprehensive Certificate of Analysis (COA) detailing purity, identity, 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). For long-term storage under inert atmosphere (argon or nitrogen) is recommended to maintain optimal stability. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder or solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95% (Area %)
Tin (Sn) Content	Contact for details
Residual Solvents (GC)	Meets ICH guidelines

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