| Answer | Crossword Clue |
|---|---|
| xylonic | pertaining to an acid obtained by oxidizing xylose |
| orceins | red dye, the principal coloring matter of cudbear and orchil, obtained by oxidizing an ammoniacal solution of orcinol |
| orcein | red dye, the principal coloring matter of cudbear and orchil, obtained by oxidizing an ammoniacal solution of orcinol |
| ornithine | amino acid, H2N(CH2)3CH(NH2)COOH, obtained by the hydrolysis of arginine and occurring as an intermediate compound in the urea cycle of mammals |
