Description

Phthalazin-5-Ol is a high-purity heterocyclic organic compound, serving as a crucial advanced pharmaceutical intermediate and a versatile building block in fine chemical synthesis. Its unique fused-ring structure makes it a valuable scaffold for developing novel active ingredients and functional materials. This compound is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for therapeutic agents targeting various diseases.
• Agrochemical Research: Used as a core structure for developing new herbicides, fungicides, and insecticides with novel modes of action.
• Material Science: Building block for creating organic electronic materials, such as ligands for OLEDs or components for conductive polymers.
• Chemical Synthesis: Versatile starting material for constructing complex heterocyclic compounds in medicinal and combinatorial chemistry.
• Biochemical Research: Potential enzyme inhibitor or probe molecule for studying biological pathways and target validation.
• Dye & Pigment Industry: Intermediate for synthesizing specialized dyes and colorants with specific light-absorption properties.

Basic Information

Product Name	Phthalazin-5-Ol
CAS No.	1309379-51-8
Molecular Formula	C8H6N2O
Molecular Weight	146.15 g/mol
Synonyms	5-Hydroxyphthalazine; Phthalazin-5-ol; 1,2-Diazanaphthalen-5-ol; 5-Phthalazinol; 5-Hydroxy-1,2-diazanaphthalene; 1,2-Diaza-5-naphthol; 5-Phthalazinone (tautomer); 5-Oxo-5H-phthalazine (tautomer)
EINECS	Contact for details

Quality Control

Our Phthalazin-5-Ol is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical data, including HPLC purity, identity confirmation (IR, NMR), and residual solvent analysis. Certificates of Analysis (COA) are available for every batch upon request, supporting compliance with cGMP and ICH Q7 guidelines for advanced intermediates.

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). Keep away from incompatible materials. The container should be kept tightly sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Residual Solvents (GC)	Complies with ICH Q3C guidelines

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