Melting point: 55-58 ℃(lit.)
Boiling point: 83-84 ℃ (0.7501 mmHg)
Refractive index: 1.4500 (estimate)
Flash Point: >230℉
Storage conditions: 2-8℃
Orthophthalaldehyde, pale yellow crystal, sensitive to light and air, can volatilize with water vapor. Soluble in water, ethanol, ether and organic solvents, slightly soluble in petroleum ether. irritating.
1. Analytical reagent in the chemical field: As an amine alkaloid reagent, it is used for the determination of primary amine and peptide bond decomposition products by fluorescence method.
2. Organic synthesis: It is also a pharmaceutical intermediate.
3. Fluorescent reagent, used for pre-column HPLC separation of amino acid derivatives, and flow cytometry to measure protein thiol groups.