| Name | Formula | pKa1 |
|---|
| (1S,3R)-cyclohexane-1,3-dicarboxylic acid | C8H12O4 | 4.10 |
| (1Z)-1-propene-1,2,3-tricarboxylic acid | C6H6O6 | 1.95 |
| (2,5-dihydroxyphenyl)acetic acid | C8H8O4 | 4.40 |
| (2-methylphenyl)acetic acid | C9H10O2 | 4.35 |
| (2E)-2,3-diphenylacrylic acid | C15H12O2 | 5.59 |
| (2E)-2-methyl-2-butenedioic acid | C5H6O4 | 3.09 |
| (2E)-3-(2-methylphenyl)prop-2-enoic acid | C10H10O2 | 4.50 |
| (2E)-3-(3-chlorophenyl)prop-2-enoic acid | C9H7ClO2 | 4.29 |
| (2E)-3-(3-methylphenyl)prop-2-enoic acid | C10H10O2 | 4.44 |
| (2E)-3-(4-chlorophenyl)prop-2-enoic acid | C9H7ClO2 | 4.41 |
| (2E)-3-(4-methylphenyl)prop-2-enoic acid | C10H10O2 | 4.56 |
| (2E)-3-phenylprop-2-enoic acid | C9H8O2 | 4.44 |
| (2E)-pent-2-ene | C5H10 | 41.00 |
| (2R,3S)-2,3-dibromosuccinic acid | C4H4Br2O4 | 1.51 |
| (2R,3S)-2,3-dimethylsuccinic acid | C6H10O4 | 3.77 |
| (2S)-2-(6-methoxynaphthalen-2-yl)propanoic acid | C14H14O3 | 4.15 |
| (2S)-2-amino-4-hydroxybutanoic acid | C4H9NO3 | 9.62 |
| (2S)-2-[[N'-[(4S)-4-amino-5-hydroxy-5-oxopentyl]carbamimidoyl]amino]butanedioic acid | C10H18N4O6 | 2.70 |
| (2S,4R)-4-hydroxypyrrolidine-2-carboxylic acid | C5H9NO3 | 1.92 |
| (2Z)-3-phenylprop-2-enoic acid | C9H8O2 | 3.89 |
| (3-ethylaminophenyl)phosphonic acid | C8H12NO3P | 1.00 |
| (3-methylaminophenyl)phosphonic acid | C7H10NO3P | 1.10 |
| (3-methylphenyl)phosphonic acid | C7H9O3P | 1.88 |
| (4-methylphenyl)phosphonic acid | C7H9O3P | 1.84 |
| (4-sulfamoylphenyl)phosphonic acid | C6H8NO5PS | 1.42 |