Chemical agents in this class, excluding chemical products for use in the separation and analysis of proteins and the production of products based on proteins but including chemical agents for use as processing aids or reaction solvents in the manufacture of drugs and as drug solubilizing and transdermal penetration agents in the formulation of drug compositions

Chemical agents in this class, excluding chemical products for use in the separation and analysis of proteins and the production of products based on proteins but including chemical agents for use as processing aids or reaction solvents in the manufacture of drugs and as drug solubilizing or transdermal penetration agents in the formulation of drug compositions