Description

Ethyl 2-((3-Methyl-4-Oxo-3,4,5,6,7,8-Hexahydrobenzo[4,5]Thieno[2,3-D]Pyrimidin-2-Yl)Thio)Acetate is a high-purity, advanced pharmaceutical intermediate with a complex fused-ring heterocyclic structure. This compound matters as a critical building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those targeting specific enzymatic pathways. It is primarily needed by pharmaceutical R&D laboratories and fine chemical manufacturers engaged in developing new therapeutic agents.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly in oncology and central nervous system (CNS) therapeutic areas.
• Chemical Biology Research: Used as a scaffold or probe in medicinal chemistry for structure-activity relationship (SAR) studies and target identification.
• Organic Synthesis Building Block: Employed in complex multi-step syntheses to construct intricate heterocyclic systems due to its reactive thioacetate and pyrimidinone functionalities.
• Agrochemical Research: Potential application as an intermediate in the development of new pesticides or herbicides, leveraging its bioactive core structure.
• Material Science Precursor: Can be utilized in the research of organic electronic materials or specialty polymers that incorporate sulfur and nitrogen heterocycles.

Basic Information

Product Name	Ethyl 2-((3-Methyl-4-Oxo-3,4,5,6,7,8-Hexahydrobenzo[4,5]Thieno[2,3-D]Pyrimidin-2-Yl)Thio)Acetate
CAS No.	59898-79-2
Molecular Formula	C₁₅H₁₈N₂O₃S₂
Molecular Weight	338.44 g/mol
Synonyms	Ethyl [(3-methyl-4-oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio]acetate; 2-[(3-Methyl-4-oxo-5,6,7,8-tetrahydro-3H-benzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio]acetic acid ethyl ester; Ethyl 2-((3-methyl-4-oxo-3,4-dihydro-5H-benzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetate; CAS 59898-79-2; 59898-79-2; Thienopyrimidine derivative intermediate; 3-Methyl-2-(carbethoxymethylthio)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one
EINECS	Contact for details

Quality Control

Our production of Ethyl 2-((3-Methyl-4-Oxo-3,4,5,6,7,8-Hexahydrobenzo[4,5]Thieno[2,3-D]Pyrimidin-2-Yl)Thio)Acetate adheres to stringent quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure consistency and compliance with client specifications. Certificates of Analysis (COA) detailing all test results are available upon request.

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). The compound may be light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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