1. C00222 compound   Malonate semialdehyde
                      3-Oxopropanoate

2. C00232 compound   Succinate semialdehyde
                      Succinic semialdehyde

3. C00349 compound   Methylmalonate semialdehyde
                      2-Methyl-3-oxopropanoate
                      3-Oxo-2-methylpropanoate

4. C00433 compound   2-Oxoglutarate semialdehyde
                      2,5-Dioxopentanoate

5. C00441 compound   Aspartate beta-semialdehyde
                      L-Aspartate 4-semialdehyde
                      L-Aspartic 4-semialdehyde

6. C00682 compound   2-Hydroxymuconate semialdehyde
                      2-Hydroxymuconic semialdehyde

7. C01146 compound   Tartronate semialdehyde
                      2-Hydroxy-3-oxopropanoate

8. C01165 compound   L-Glutamate 5-semialdehyde
                      L-Glutamate gamma-semialdehyde

9. C02800 compound   4-Oxoglutarate semialdehyde
                      4,5-Dioxopentanoate

10. C03273 compound   Glutarate semialdehyde
                      5-Oxopentanoate

11. C03741 compound   L-Glutamate 1-semialdehyde
                      (S)-4-Amino-5-oxopentanoate

12. C03824 compound   2-Aminomuconate semialdehyde
                      2-Aminomuconate 6-semialdehyde

13. C04076 compound   2-Aminoadipate 6-semialdehyde
                      L-2-Aminoadipate 6-semialdehyde

14. C05938 compound   L-4-Hydroxyglutamate semialdehyde

15. C06002 compound   (S)-Methylmalonate semialdehyde

16. C06102 compound   Adipate semialdehyde
                      6-Oxohexanoate
                      Hexan-1-one-6-carboxylate

17. C06603 compound   4-Hydroxymuconic semialdehyde
                      cis,trans-4-Hydroxymuconic semialdehyde

18. C11822 compound   2-Aminomalonate semialdehyde
                      2-Ammoniomalonate semialdehyde

19. C01250 compound   N-Acetyl-L-glutamate 5-semialdehyde
                      2-Acetamido-5-oxopentanoate

20. C04106 compound   2-Hydroxymethyl succinate semialdehyde
                      alpha-Hydroxymethyl succinate semialdehyde
                      2-(Hydroxymethyl)-4-oxobutanoate

21. C04409 compound   2-Amino-3-carboxymuconate semialdehyde
                      2-Amino-3-(3-oxoprop-1-enyl)-but-2-enedioate
                      2-Amino-3-(3-oxoprop-1-en-1-yl)but-2-enedioate

22. C04480 compound   3-Carboxy-2-hydroxymuconate semialdehyde

23. C04484 compound   4-Carboxy-2-hydroxymuconate semialdehyde
                      4-Carboxy-2-hydroxy-cis,cis-muconate 6-semialdehyde

24. C04642 compound   2-Hydroxy-5-carboxymethylmuconate semialdehyde
                      5-Carboxymethyl-2-hydroxymuconate semialdehyde
                      5-Carboxymethyl-2-hydroxymuconic semialdehyde

25. C05932 compound   N2-Succinyl-L-glutamate 5-semialdehyde

26. C07089 compound   5-Chloro-2-hydroxymuconic semialdehyde

27. C12988 compound   N2-Acetyl-L-aminoadipate semialdehyde

28. C05816 compound   Succinate semialdehyde-thiamin diphosphate anion

29. C06760 compound   2-Hydroxy-5-methyl-cis,cis-muconic semialdehyde
                      (2E,4Z)-2-Hydroxy-5-methyl-6-oxohexa-2,4-dienoate

30. C04796 compound   4-(L-alanin-3-yl)-2-hydroxy-cis,cis-muconate 6-semialdehyde

31. C04797 compound   5-(L-alanin-3-yl)-2-hydroxy-cis,cis-muconate 6-semialdehyde