Description

2-Ethyl-4-Hydrazino-6,7-Dihydro-5H-Cyclopenta[4,5]Thieno[2,3-D]Pyrimidine is a high-purity, advanced pharmaceutical intermediate featuring a complex fused-ring heterocyclic structure. This compound is critical for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring targeted 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: Key building block in the synthesis of novel drug candidates, especially kinase inhibitors and other targeted therapies.
• Organic Synthesis Research: Used in academic and industrial R&D for constructing complex heterocyclic systems and exploring new reaction pathways.
• Agrochemical Development: Serves as a precursor in the research and development of new pesticides and herbicides with specific biological activity.
• Material Science: Potential monomer or precursor for creating specialty polymers and organic electronic materials with unique properties.
• Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for custom synthesis projects under cGMP conditions.

Basic Information

Product Name	2-Ethyl-4-Hydrazino-6,7-Dihydro-5H-Cyclopenta[4,5]Thieno[2,3-D]Pyrimidine
CAS No.	300816-21-1
Molecular Formula	C11H14N4S
Molecular Weight	234.32 g/mol
Synonyms	2-Ethyl-4-hydrazinyl-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine; 4-Hydrazino-2-ethyl-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine; 2-Ethyl-4-hydrozinyl-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-6,7-diol; CAS 300816-21-1; Thienopyrimidine derivative, 2-ethyl-4-hydrazino; Cyclopentathienopyrimidine hydrazine derivative
EINECS	Contact for details

Quality Control

Our 2-Ethyl-4-Hydrazino-6,7-Dihydro-5H-Cyclopenta[4,5]Thieno[2,3-D]Pyrimidine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical quality attributes. Our production can adhere to cGMP guidelines for pharmaceutical applications 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 (15-25°C). Due to its sensitivity to oxidation, long-term storage under an inert atmosphere (e.g., nitrogen or argon) is recommended for optimal stability. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.