Description

Thieno[2,3-D]Pyrimidine-6-Carboxylic Acid, 2,4-Diamino- (9Ci) is a high-purity, heterocyclic organic compound featuring a fused thiophene and pyrimidine ring system with both carboxylic acid and diamine functional groups. This unique structure makes it a versatile and critical building block in advanced organic synthesis, particularly for the development of novel pharmaceutical agents and agrochemicals. It is primarily sought after by research institutions, pharmaceutical R&D departments, and fine chemical manufacturers engaged in creating new molecular entities with targeted biological activity.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of kinase inhibitors, anticancer agents, and other small-molecule therapeutics targeting specific enzymatic pathways.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and plant growth regulators due to its bioactive heterocyclic core.
• Material Science: Serves as a monomer or functional component in the creation of advanced polymers, dyes, and organic electronic materials.
• Chemical Biology: Employed as a molecular scaffold or probe in biochemical assays and drug discovery platforms to study protein-ligand interactions.
• Academic & Contract Research: Utilized in university laboratories and CROs (Contract Research Organizations) for fundamental research and custom synthesis projects.

Basic Information

Product Name	Thieno[2,3-D]Pyrimidine-6-Carboxylic Acid, 2,4-Diamino- (9Ci)
CAS No.	155087-28-8
Molecular Formula	C7H6N4O2S
Molecular Weight	210.21 g/mol
Synonyms	2,4-Diaminothieno[2,3-d]pyrimidine-6-carboxylic acid; 2,4-Diamino-6-carboxythieno[2,3-d]pyrimidine; Thieno[2,3-d]pyrimidine-6-carboxylic acid, 2,4-diamino-; 155087-28-8; 2,4-Diaminothieno[2,3-d]pyrimidine-6-carboxylate; 6-Carboxy-2,4-diaminothieno[2,3-d]pyrimidine; 2,4-Diamino-thieno[2,3-d]pyrimidine-6-carboxylic acid
EINECS	Contact for details

Quality Control

Our production of Thieno[2,3-D]Pyrimidine-6-Carboxylic Acid, 2,4-Diamino- (9Ci) adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to verify identity and purity. Certificates of Analysis (COA) detailing all test results are provided with every shipment. We operate under a quality management system and can support development projects requiring material manufactured under cGMP guidelines.

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 hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture. For long-term storage, consider using desiccants or storing under an inert atmosphere.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (HPLC)	Conforms
Identification (IR)	Conforms
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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