Description

Ethyl 5-Aminothieno[2,3-D]Pyrimidine-6-Carboxylate is a high-purity, heterocyclic organic building block of significant interest in advanced chemical synthesis. This compound serves as a critical intermediate for the development of novel pharmacologically active molecules, particularly in medicinal chemistry research. It is primarily sought after by pharmaceutical R&D laboratories and fine chemical manufacturers engaged in the synthesis of complex heterocyclic targets.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of kinase inhibitors and other targeted therapeutic agents.
• Medicinal Chemistry Research: Used as a versatile scaffold for constructing novel compound libraries in drug discovery programs.
• Organic Synthesis Building Block: Employed in the construction of complex fused thienopyrimidine derivatives for material science and agrochemical research.
• Chemical Reference Standard: Serves as a high-purity analytical standard for quality control and method development in analytical laboratories.

Basic Information

Product Name	Ethyl 5-Aminothieno[2,3-D]Pyrimidine-6-Carboxylate
CAS No.	59488-80-1
Molecular Formula	C9H9N3O2S
Molecular Weight	223.25 g/mol
Synonyms	5-Amino-6-(ethoxycarbonyl)thieno[2,3-d]pyrimidine; Ethyl 5-Amino-6-thieno[2,3-d]pyrimidinecarboxylate; 5-Aminothieno[2,3-d]pyrimidine-6-carboxylic Acid Ethyl Ester; 59488-80-1; Thieno[2,3-d]pyrimidine-6-carboxylic acid, 5-amino-, ethyl ester; Ethyl 5-aminothieno[2,3-d]pyrimidine-6-carboxylate
EINECS	Contact for details

Quality Control

Our Ethyl 5-Aminothieno[2,3-D]Pyrimidine-6-Carboxylate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity, suitable for research and development applications. We provide comprehensive Certificates of Analysis (COA) with each batch, detailing purity, identity, and impurity profiles. Our quality system is designed to meet the stringent requirements of pharmaceutical intermediate supply.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container sealed to protect from moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 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.