Description

[1]Benzothieno[2,3-D]Pyrimidine-3(4H)-Aceticacid,5,6,7,8-Tetrahydro-2-(4-Methylphenyl)-4-Oxo-,Methylester(9Ci) is a high-purity, advanced pharmaceutical intermediate belonging to a class of fused heterocyclic compounds. This compound is valued for its role 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 R&D laboratories and manufacturing facilities in the pharmaceutical and biotechnology sectors engaged in drug discovery and process development.

Application

• Pharmaceutical Intermediate: 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.
• Process Chemistry Development: Serves as a standard or starting material for optimizing scalable synthetic routes for API manufacturing.
• Reference Standard: Employed as an analytical standard in quality control laboratories for method development and impurity profiling.
• Academic Research: Utilized in university and institutional labs for investigating new heterocyclic chemistry and reaction methodologies.

Basic Information

Item	Details
Product Name	[1]Benzothieno[2,3-D]Pyrimidine-3(4H)-Aceticacid,5,6,7,8-Tetrahydro-2-(4-Methylphenyl)-4-Oxo-,Methylester(9Ci)
CAS No.	606122-63-8
Molecular Formula	C21H20N2O3S
Molecular Weight	380.46 g/mol
Synonyms	Methyl 5,6,7,8-tetrahydro-2-(4-methylphenyl)-4-oxo-4H-[1]benzothieno[2,3-d]pyrimidine-3-acetate; 4H-[1]Benzothieno[2,3-d]pyrimidine-3-acetic acid, 5,6,7,8-tetrahydro-2-(4-methylphenyl)-4-oxo-, methyl ester; Methyl 2-(4-methylphenyl)-4-oxo-5,6,7,8-tetrahydro-4H-benzo[4,5]thieno[2,3-d]pyrimidine-3-acetate; CAS 606122-63-8
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems. Every batch is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your regulatory and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). The compound may be hygroscopic; therefore, the container should be kept in a dry environment and sealed after each use to minimize exposure to moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC)	Retention time corresponds to reference standard
Identification (IR)	Spectrum matches reference
Purity (HPLC)	≥ 98.0%
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.