Description

2,4-Diaminoquinazoline is a versatile heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. Its fused pyrimidine-diamine structure makes it a valuable intermediate for creating complex molecules with targeted biological and material properties. This high-purity intermediate is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where precise molecular architecture is paramount.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of kinase inhibitors, anticancer agents, and other bioactive heterocyclic compounds.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators.
• Material Science Research: Serves as a monomer or ligand for constructing organic frameworks, coordination polymers, and functional dyes.
• Biochemical Research: Employed as a scaffold in medicinal chemistry for structure-activity relationship (SAR) studies and hit-to-lead optimization.
• Fine Chemical Production: Intermediate for manufacturing specialty chemicals, including corrosion inhibitors and photographic chemicals.

Basic Information

Product Name	2,4-Diaminoquinazoline
CAS No.	1899-48-5
Molecular Formula	C8H8N4
Molecular Weight	160.18 g/mol
Synonyms	2,4-Quinazolinediamine; Quinazoline-2,4-diamine; 2,4-Diamino-1,3-diazanaphthalene; 2,4-DAQ; 1,3-Diazanaphthalene-2,4-diamine; NSC 51128; 2,4-Diaminobenzodiazine
EINECS	217-590-6

Quality Control

Our 2,4-Diaminoquinazoline is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and purity, residual solvent analysis, and identification by spectroscopic methods. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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