o-Phthalaldehyde

Chemical Name: o-Phthalaldehyde
Synonyms: OPA, 1,2-Benzenedicarboxaldehyde
Molecular Formula: C₈H₆O₂
Molecular Weight: 134.13 g/mol
CAS No.: 643-79-8
EINECS: 211-402-2

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Product Specifications

Parameter	Specification
Appearance	Yellowish crystalline solid
Purity (HPLC)	≥99%
Melting Point	54–57°C
Solubility	Soluble in water, ethanol, DMF
Production Capacity	100 metric tons/year
Minimum Order	10 grams

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Key Applications

Disinfection:High-level disinfectant for medical instruments (alternative to glutaraldehyde).Pharmaceuticals:Intermediate for antineoplastic and antibacterial agents.Dye Synthesis:Precursor for fluorescent dyes and biomarkers.Analytical Chemistry:Derivatization agent for HPLC analysis of amino acids.

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Packaging & Storage

Size	Packaging	Storage Conditions
10 g–100 g	Amber glass bottle	2–8°C, dry, inert atmosphere
1 kg	Aluminum foil bag + desiccant	≤25°C, avoid light
Bulk (>10 kg)	Sealed drum (nitrogen flushed)	Ventilated area

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Safety & Handling

GHS Classification:H302 (Harmful if swallowed)H314 (Causes severe skin burns and eye damage)H317 (May cause allergic skin reaction)Recommended PPE: Nitrile gloves, face shield, vapor respirator.Incompatibilities: Strong oxidizers, amines.

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