| 435 / | HD | CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY |
| 41 | DF | MICRO-ORGANISM, TISSUE CELL CULTURE OR ENZYME USING PROCESS TO SYNTHESIZE A DESIRED CHEMICAL COMPOUND OR COMPOSITION {26} |
| 132 | DF | .~ Preparing oxygen-containing organic compound {6} |
| 136 | DF | .~.~ Containing a carboxyl group {6} |
| 142 | | .~.~.~ Polycarboxylic acid {3} |
| 143 | DF | .~.~.~.~> Having keto group (e.g., alpha-ketoglutaric acid, etc.) |
| 144 | DF | .~.~.~.~> Tricarboxylic acid (e.g., citric acid, etc.) |
| 145 | DF | .~.~.~.~> Dicarboxylic acid having four or less carbon atoms (e.g., fumaric, maleic, etc.) |