Description

5-Ethyl-3-Methyl-8,9,10,11-Tetrahydro[1]Benzothieno[3,2-E][1,2,4]Triazolo[4,3-C]Pyrimidine is a high-purity, advanced pharmaceutical intermediate with a complex heterocyclic structure. This compound is valued for its role as a critical building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring sophisticated molecular scaffolds. It is primarily utilized by research institutions and pharmaceutical manufacturers engaged in the development of new chemical entities and specialty fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, especially those targeting central nervous system (CNS) disorders.
• Organic Synthesis Building Block: Used in research and development for constructing complex fused heterocyclic systems in medicinal chemistry.
• Chemical Research: Employed in academic and industrial R&D labs for studying structure-activity relationships (SAR) and developing new synthetic methodologies.
• API Development: A crucial component in the multi-step synthesis of potential Active Pharmaceutical Ingredients (APIs) requiring a benzothienotriazolopyrimidine core.
• Reference Standard: Can be supplied as a high-purity analytical standard for quality control and method development in pharmaceutical analysis.

Basic Information

Product Name	5-Ethyl-3-Methyl-8,9,10,11-Tetrahydro[1]Benzothieno[3,2-E][1,2,4]Triazolo[4,3-C]Pyrimidine
CAS No.	301331-56-6
Molecular Formula	C₁₅H₁₆N₄S
Molecular Weight	284.38 g/mol
Synonyms	5-Ethyl-3-methyl-8,9,10,11-tetrahydro[1]benzothieno[3,2-e][1,2,4]triazolo[4,3-c]pyrimidine; Benzothieno[3,2-e]triazolo[4,3-c]pyrimidine derivative; 301331-56-6; 5-Ethyl-3-methyl-tetrahydrobenzothienotriazolopyrimidine; Tetrahydrobenzothienotriazolopyrimidine intermediate; CAS 301331-56-6
EINECS	Contact for details

Quality Control

Our 5-Ethyl-3-Methyl-8,9,10,11-Tetrahydro[1]Benzothieno[3,2-E][1,2,4]Triazolo[4,3-C]Pyrimidine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment 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 incompatible materials. For long-term storage, consider storage under an inert atmosphere.

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%
Related Substances (HPLC)	Any individual impurity ≤ 0.5%
Total Impurities	≤ 2.0%
Residual Solvents (GC)	Complies with ICH Q3C guidelines
Loss on Drying	≤ 0.5%

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