Orgo-Chem [Gujarat] Pvt. Ltd manufactures Disulphonic Acid. Orgo-Chem [Gujarat] Pvt. Ltd is an ISO 9001: 2000 certified company. Disulphonic Acid is used as intermediate for optical brightening agents and for dyes like Direct Blue 70, 78, 82, 83, Direct Black 77, Direct Green 20, Direct Red 103, Film Orange P [by], Mordant Azol Printing Bordeaux B, Pigment Saturn Yellow 5 GL etc.