252 / | HD | COMPOSITIONS |
380 | DF | PRESERVATIVE AGENTS {3} |
397 | DF | .~ Anti-oxidants or chemical change inhibitants {2} |
399 | DF | .~.~ Organic compound containing {8} |
400.1 | DF | .~.~.~ Component inorganic or organic comprising element other than C,H,O,N,S, and halogen {8} |
400.3 | .~.~.~.~ Silicon containing {1} | |
400.31 | DF | .~.~.~.~.~> Organo silicon |