Description

2-Ethyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine-4(3H)-thione is a high-purity heterocyclic organic compound featuring a fused benzothiophene-pyrimidine-thione core structure. This specialized chemical serves as a critical advanced pharmaceutical intermediate and a versatile scaffold for medicinal chemistry research, enabling the development of novel therapeutic agents. It is primarily required by R&D and production teams in the pharmaceutical, agrochemical, and fine chemical synthesis sectors.

Application

This compound is a key building block in sophisticated organic synthesis, with principal applications including:

• Pharmaceutical Intermediate: Core scaffold for the research and development of new drug candidates, particularly in kinase inhibitor programs.
• Medicinal Chemistry Research: A versatile precursor for constructing complex heterocyclic libraries for high-throughput screening and structure-activity relationship (SAR) studies.
• Agrochemical Synthesis: Intermediate in the development of novel active ingredients for crop protection products.
• Chemical Biology Probes: Used in the design and synthesis of molecular probes to study biological pathways and target engagement.
• Material Science Research: Potential precursor for organic electronic materials due to its fused aromatic and heterocyclic system.

Basic Information

Product Name	2-Ethyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine-4(3H)-thione
CAS No.	379243-88-6
Molecular Formula	C₁₃H₁₄N₂S₂
Molecular Weight	262.39 g/mol
Synonyms	2-Ethyl-4-thioxo-3,4,5,6,7,8-hexahydro-1-benzothieno[2,3-d]pyrimidine; 4(3H)-Thione, 2-ethyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine; Benzothieno[2,3-d]pyrimidine-4(3H)-thione, 2-ethyl-5,6,7,8-tetrahydro-; 379243-88-6; 2-Ethyl-5,6,7,8-tetrahydrobenzothieno[2,3-d]pyrimidine-4-thiol (tautomeric form); ETBTPT
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to stringent quality management systems. Every batch is subjected to rigorous analytical testing, including HPLC for purity and identity confirmation via NMR and MS, to ensure it meets the exacting standards required for research and development. Certificates of Analysis (COA) detailing batch-specific results are provided and can be tailored to meet specific client or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). The compound may be light-sensitive and should be handled under an inert atmosphere for long-term storage to ensure stability.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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