Class |
Functional Group Possibilities |
| Sa |
monofunctional carboxylic acids (≤5C), arylsulfonic acids |
| Sb |
monofunctional amines (≤6C) |
| Sg |
monofunctional alcohols, aldehydes, ketones, esters, nitriles, and amides (all ≤5C) |
| S |
salts of organic acids, amine hydrochlorides, amino acids, polyfunctional compounds with
hydrophilic functional groups |
| As |
strong organic acids: carboxylic acids (>6C), phenols with electron-withdrawing groups in
the ortho and/or para position(s), b-diketones |
| Aw |
weak organic acids: phenols, enols, oximes, imides, sulfonamides, thiophenols (all >5C),
b-diketones, nitro compounds with a-hydrogens |
| B |
aliphatic amines (≥8C), anilines (only one phenyl group attached to N), some ethers |
| Nm |
miscellaneous neutral compounds containing N or S (>5C) |
| N |
alcohols, aldehydes, ketones, monofunctional esters (>5C but <9C), ethers, epoxides,
alkenes, alkynes, some aromatic compounds (with activating groups) |
| I |
saturated hydrocarbons, haloalkanes, aryl halides, other deactivated aromatic compounds,
diaryl ethers |