Class 2 Residual Solvents

Class 2 Residual Solvents

The following solvents are indicated as Class 2 Residual Solvents

1. Acetonitrile
2. Chlorobenzene
3. Chloroform
4. Cyclohexane
5. 1,2-Dichloroethene
6. 1,2-Dimethoxyethane
7. N,N-Dimethylacetamide
8. N,N-Dimethylformamide
9. 1,4-Dioxane
10. 2-Ethoxyethanol
11. Ethylene glycol
12. Formamide
13. Hexane
14. Methanol
15. 2-Methoxyethanol
16. Methylbutylketone
17. Methylcyclohexane
18. Methylene chloride
19. N-Methylpyrrolidone
20. Nitromethane
21. Pyridine
22. Sulfolane
23. Tetrahydrofuran
24. Tetralin
25. Toluene

For more information, refer to the USP <467> Residual Solvents.