ICH Q3C solvent classes

Class 1: solvents to be avoided (known or suspected carcinogens or environmental hazards). Class 2: solvents to be limited, with limits based on a permitted daily exposure. Class 3: solvents of low toxic potential, acceptable up to 5000 ppm without justification.

• Also: Class 1 solvents
• Also: Class 2 solvents
• Also: Class 3 solvents