Description

4,6-Diamino-2-Hydroxy-Pyrimidine Hemisulfate Salt is a high-purity pyrimidine derivative salt, serving as a critical building block in advanced organic synthesis. Its value lies in providing a stable, crystalline form of the reactive diaminohydroxypyrimidine core, essential for constructing complex heterocyclic systems. This compound is primarily needed by research and development laboratories, as well as production facilities in the pharmaceutical and agrochemical sectors, for the synthesis of active pharmaceutical ingredients (APIs) and specialized fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of nucleoside analogs, antiviral agents, and other bioactive molecules targeting pyrimidine-based pathways.
• Agrochemical Synthesis: Used in the development of herbicides and fungicides that utilize aminopyrimidine chemistry for their mode of action.
• Chemical Research & Development: Serves as a versatile scaffold for medicinal chemistry and the discovery of new chemical entities in academic and industrial settings.
• Fine Chemical Production: Employed in the manufacture of dyes, pigments, and other specialty chemicals requiring a functionalized pyrimidine structure.

Basic Information

Product Name	4,6-Diamino-2-Hydroxy-Pyrimidine Hemisulfate Salt
CAS No.	102783-19-7
Molecular Formula	C4H6N4O · ½H2SO4
Molecular Weight	177.14 g/mol (Free base: 126.12 g/mol)
Synonyms	2-Hydroxy-4,6-diaminopyrimidine hemisulfate; 4,6-Diamino-2-pyrimidinol hemisulfate; 4,6-Diamino-2(1H)-pyrimidinone hemisulfate salt; 2,4-Diamino-6-hydroxypyrimidine hemisulfate; DAHP hemisulfate; 4,6-Diaminouracil hemisulfate; 6-Amino-2-hydroxy-4-pyrimidinamine hemisulfate
EINECS	Contact for details

Quality Control

Our 4,6-Diamino-2-Hydroxy-Pyrimidine Hemisulfate Salt is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for research and industrial synthesis. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are 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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect stability and handling properties.

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	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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