| 801 | SPHINGOSINE | SPH |
 |
4 |
| 802 | S-Pomalidomide | Y70 |
 |
1 |
| 803 | STEAROYL-COENZYME A | ST9 |
 |
1 |
| 804 | STIGMATELLIN | SIG |
 |
1 |
| 805 | STRYCHNINE | SY9 |
 |
7 |
| 806 | THIENO[3,2-B]PYRIDINE-2-SULFONIC ACID [1-(1-AMINO-ISOQUINOLIN-7-YLMETHYL)-2-OXO-PYRROLDIN-3-YL]-AMIDE | 815 |
 |
1 |
| 807 | THIENO[3,2-B]PYRIDINE-2-SULFONIC ACID [2-OXO-1-(1H-PYRROLO[2,3-C]PYRIDIN-2-YLMETHYL)-PYRROLIDIN-3-YL]-AMIDE | PR2 |
 |
1 |
| 808 | THYMIDINE | THM |
 |
2 |
| 809 | trans-4-(7-carbamoyl-1H-benzimidazol-2-yl)-1-propylpiperidinium | AAI |
 |
1 |
| 810 | TRANS-4-AMINOMETHYLCYCLOHEXANE-1-CARBOXYLIC ACID | AMH |
 |
1 |
| 811 | TRICHOSTATIN A | TSN |
 |
1 |
| 812 | Triisopropanolamine | 96H |
 |
1 |
| 813 | trimethyl-[(2S)-1-oxidanyl-1-oxidanylidene-3-(2-sulfanylidene-1,3-dihydroimidazol-4-yl)propan-2-yl]azanium | LW8 |
 |
2 |
| 814 | trimethyl(3-oxidanylphosphonoylpropyl)azanium | RTK |
 |
1 |
| 815 | trimethylamine oxide | TMO |
 |
2 |
| 816 | TRIMETHYL GLYCINE | BET |
 |
8 |
| 817 | URACIL | URA |
 |
1 |
| 818 | URIDINE | URI |
 |
5 |
| 819 | URIDINE-DIPHOSPHATE-N-ACETYLGLUCOSAMINE | UD1 |
 |
1 |
| 820 | VARENICLINE | QMR |
 |
5 |
| 821 | XANTHINE | XAN |
 |
1 |