Description

4-Amino-3-Hydroxy Pyridine is a versatile heterocyclic building block and key intermediate in organic synthesis. Its bifunctional nature, featuring both amino and hydroxyl groups on the pyridine ring, makes it a critical precursor for the development of complex molecules. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to create novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block for synthesizing active pharmaceutical ingredients (APIs), particularly in the development of central nervous system (CNS) drugs and other therapeutic agents.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and fungicides, where the pyridine core contributes to biological activity.
• Ligand and Catalyst Preparation: Serves as a precursor for creating chelating ligands used in homogeneous catalysis and metal complexation processes.
• Dye and Pigment Manufacturing: Employed in the synthesis of advanced colorants and functional dyes due to its reactive sites for chromophore development.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new chemical entities and reaction pathways in medicinal and synthetic chemistry.
• Polymer Modification: Acts as a functional monomer or additive to introduce specific chemical properties into polymer chains.

Basic Information

Product Name	4-Amino-3-Hydroxy Pyridine
CAS No.	52334-53-9
Molecular Formula	C5H6N2O
Molecular Weight	110.11 g/mol
Synonyms	3-Hydroxy-4-aminopyridine; 4-Amino-3-pyridinol; 3-Pyridinol, 4-amino-; 4-Amino-3-hydroxypyridine; 4-Amino-3-pyridinone (tautomer); 4-Amino-3-oxo-1,4-dihydropyridine; 3-Hydroxy-4-pyridinamine; 4-Amino-3-pyridinol
EINECS	Contact for details

Quality Control

Our 4-Amino-3-Hydroxy Pyridine is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for synthesis and research applications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

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

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
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.