252 / | HD | COMPOSITIONS |
380 | DF | PRESERVATIVE AGENTS {3} |
397 | DF | .~ Anti-oxidants or chemical change inhibitants {2} |
399 | DF | .~.~ Organic compound containing {8} |
401 | DF | .~.~.~ Amine, amide, azo, or nitrogen-base radical containing {2} |
402 | .~.~.~.~ Sulphur organic compound containing |