Description

2,5-Diamino-4,6-Dihydropyrimidine Hemisulfate Salt is a high-purity, heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. Its value lies in its functionalized pyrimidine core, which is essential for constructing complex molecules with specific biological or material properties. This intermediate is primarily needed by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of nucleoside analogs, antiviral agents, and other bioactive heterocyclic compounds.
• Agrochemical Research: Used in developing novel herbicides, fungicides, and plant growth regulators that target specific biochemical pathways.
• Chemical Synthesis: Serves as a versatile building block for creating complex ligands, dyes, and photoactive materials.
• Biochemical Research: Employed in studies involving enzyme inhibitors and as a scaffold for probing nucleotide-related processes.
• Material Science: Potential precursor for nitrogen-rich polymers or coordination complexes with specialized electronic properties.

Basic Information

Product Name	2,5-Diamino-4,6-Dihydropyrimidine Hemisulfate Salt
CAS No.	102783-67-5
Molecular Formula	C4H8N4 · ½ H2SO4
Molecular Weight	164.15 g/mol (Free base: 112.13)
Synonyms	2,5-Diamino-4,6-dihydropyrimidine sulfate (1:0.5); 2,5-Diamino-1,4,5,6-tetrahydropyrimidine hemisulfate; 4,6-Dihydro-2,5-pyrimidinediamine hemisulfate; 2,5-Diaminotetrahydropyrimidine hemisulfate; 2,5-Diamino-3,4-dihydropyrimidine hemisulfate; 2,5-Diaminoperhydropyrimidine sulfate; DADHP hemisulfate
EINECS	Contact for details

Quality Control

Our 2,5-Diamino-4,6-Dihydropyrimidine Hemisulfate Salt is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency, meeting the high standards required for research and commercial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent exposure to atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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