Pyrogallol CAS 87-66-1

Pyrogallol – Versatile Intermediate for Chemical, Pharmaceutical, and Electronics Industries

Basic Information

• Product Name: Pyrogallol

• Chemical Name: 1,2,3-Trihydroxybenzene

• CAS Number: 87-66-1

• Molecular Formula: C₆H₃(OH)₃

• Molecular Weight: 126.11 g/mol

• Appearance: White to off-white crystalline solid

• Packaging: 25 kg net vacuum aluminum foil bags in paper drums (gross weight 28 kg)

• Storage: Store in a cool, well-ventilated, dry place, protected from light.

Overview
Pyrogallol is a phenolic compound with three hydroxyl groups in adjacent positions on the benzene ring. It is a valuable intermediate in organic synthesis due to its reducing properties and ability to form complexes with metals. It is widely used in the chemical, pharmaceutical, agrochemical, and electronics industries.

Applications

• Chemical synthesis: As a building block for dyes, antioxidants, and photographic developers.

• Pharmaceutical synthesis: Used in the production of active pharmaceutical ingredients (APIs) and intermediates.

• Pesticide production: Precursor for fungicides, insecticides, and herbicides.

• Electronics: Employed in the manufacture of electronic components and as a reducing agent in certain processes.

• Analytical chemistry: Used as a reagent for the determination of metals (e.g., iron, molybdenum).

Key Properties

• Strong reducing agent – readily oxidized, useful in redox reactions.

• Forms colored complexes with metal ions, useful in analytical applications.

• Sensitive to light and air – may discolor upon prolonged exposure; store properly.

• Soluble in water, alcohol, and ether.

Handling and Storage

• Store in a cool, well‑ventilated, dry place, away from light and heat sources.

• Keep containers tightly sealed to prevent oxidation and moisture absorption.

• Avoid contact with strong oxidizers and bases.

• Use appropriate personal protective equipment (gloves, safety goggles, lab coat) when handling.

Packaging
Standard: 25 kg net vacuum aluminum foil bags in paper drums. Container capacity: 9 tons per 20‑foot container, 18 tons per 40‑foot high‑cube container.

Quality Assurance
Each batch is tested for purity (by HPLC or GC), melting point, and color to ensure consistent product quality.