CAS 643-79-8 O-Phthalaldehyde/OPA -Professional supplier
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Specification of O-Phthalaldehyde/OPA
| Item | Specifications |
| Appearance | Light yellow crystal |
| Purity | ≥99% |
| Moisture | ≤0.5% |
| Melting point | 54-56℃ |
Basic information of O-Phthalaldehyde
CAS: 643-79-8
Standard: Technical grade
Content: 99%
Capacity:50MT/month
Loading port: Shanghai
Synonyms: Phthalic aldehyde,OPA
MF: C8H6O2
Use Of O-Phthalaldehyde/OPA
1. High-Level Disinfectant for Medical Devices
2% OPA solution is a widely used high-level disinfectant approved for reprocessing semi-critical medical instruments, including endoscopes (gastroscopes, colonoscopes), surgical instruments, and ultrasound probes.
It exhibits rapid, broad-spectrum antimicrobial activity against bacteria, viruses, fungi, and spores, with low irritation and no unpleasant odor compared to glutaraldehyde.
2. Derivatization Reagent in Analytical Chemistry
A primary fluorescent labeling agent for the detection and quantification of primary amines, amino acids, peptides, and proteins via HPLC (High-Performance Liquid Chromatography) and fluorescence spectroscopy.
◦ Used for pre-column derivatization in amino acid analysis, enabling sensitive detection in biological, food, and environmental samples.
3. Pharmaceutical & Fine Chemical Intermediate
Serves as a key building block in the synthesis of pharmaceutical compounds, including antibiotics, antiplatelet agents, and antifungal drugs.
Its dual aldehyde groups enable it to participate in a variety of organic reactions, making it a versatile intermediate in organic synthesis.
4. Other Industrial & Laboratory Uses
Employed as a biocide and preservative in industrial applications such as leather processing, textiles, and water treatment.
Used as a chromogenic/fluorogenic reagent for the qualitative and quantitative analysis of amine-containing compounds in laboratories.
Package Of O-Phthalaldehyde/OPA
25kg/drum or according to the customers’ demand
Storage: Stored in the dry and ventilated inside storeroom, prevent direct sunlight, slightly pile and put down.





