Ortho Phthalaldehyde Dealers in Thane

• Form: Powder
• Color: Light yellow to yellow with a green cast
• Grade: AR / GR
• Purity: 99%+

o-Phthalaldehyde or ortho-phthalaldehyde (OPA) is the chemical compound with the formula C6H4(CHO)2. o-Phthaldehyde, 99% Cas no 643-79-8 - used in precolumn derivatization of amino acids for HPLC separation. o-Phthaldehyde, 99% Cas no 643-79-8 - used for flow cytometric measurements of protein thiol groups.