Description

Thieno[2,3-D]Pyrimidine-2,4-Diamine is a high-purity heterocyclic organic compound serving as a critical building block in advanced chemical synthesis. Its value lies in its role as a versatile intermediate for constructing complex molecular architectures, particularly in pharmaceutical research and development. This compound is essential for medicinal chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel active ingredients.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of kinase inhibitors and other targeted therapeutic agents.
• Agrochemical Research: Used in developing novel fungicides and herbicides due to its bioactive heterocyclic core.
• Chemical Biology Probe Development: Serves as a scaffold for creating tool compounds to study biological pathways and protein function.
• Material Science Research: Investigated as a monomer or precursor for organic electronic materials and specialty polymers.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs for the production of client-specific target molecules in gram to kilogram quantities.

Basic Information

Product Name	Thieno[2,3-D]Pyrimidine-2,4-Diamine
CAS No.	130750-42-4
Molecular Formula	C6H6N4S
Molecular Weight	166.20 g/mol
Synonyms	2,4-Diaminothieno[2,3-d]pyrimidine; Thieno[2,3-d]pyrimidine-2,4-diyldiamine; 2,4-Diamino-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine (related fused system); TPDA; 130750-42-4; 2,4-Diaminothienopyrimidine
EINECS	Contact for details

Quality Control

Our Thieno[2,3-D]Pyrimidine-2,4-Diamine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, IR, MS). We provide Certificates of Analysis (COA) with detailed specifications for trace metals, residual solvents, and related substances, ensuring compliance with research and development standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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