| 1 | 3'-azido-3'-deoxythymidine | AZZ |
 |
1 |
| 2 | (2R)-2-amino-1-[2-(1-methylethyl)pyrazolo[1,5-a]pyridin-3-yl]propan-1-one | AVR |
 |
1 |
| 3 | N,N,N-trimethyl-histidine | AVJ |
 |
7 |
| 4 | 3-[(4-methylthiophen-2-yl)methylamino]pyridine-4-carboxylic acid | AUY |
 |
1 |
| 5 | ACETYLTHIOCHOLINE | AT3 |
 |
2 |
| 6 | ARGININE | ARG |
 |
25 |
| 7 | [(2R,3S,4R,5R)-5-(6-AMINOPURIN-9-YL)-3,4-DIHYDROXY-OXOLAN-2-YL]METHYL [HYDROXY-[[(2R,3S,4R,5S)-3,4,5-TRIHYDROXYOXOLAN-2-YL]METHOXY]PHOSPHORYL] HYDROGEN PHOSPHATE | AR6 |
 |
4 |
| 8 | ADENOSINE-5-DIPHOSPHORIBOSE | APR |
 |
1 |
| 9 | PHOSPHOMETHYLPHOSPHONIC ACID ADENOSYL ESTER | AP2 |
 |
1 |
| 10 | ADENOSINE MONOPHOSPHATE | AMP |
 |
9 |
| 11 | TRANS-4-AMINOMETHYLCYCLOHEXANE-1-CARBOXYLIC ACID | AMH |
 |
1 |
| 12 | [(2~{S},3~{S},4~{R},5~{R})-5-(2-azanyl-7-methyl-6-oxidanylidene-3~{H}-purin-7-ium-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methylsulfanyl-[[[(3~{R},4~{S})-5-(2-azanyl-6-oxidanylidene-1~{H}-purin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methylsulfanyl-oxidanyl-phosphoryl]oxy-oxidanyl-phosphoryl]oxy-phosphinic acid | AKW |
 |
1 |
| 13 | 2-OXOGLUTARIC ACID | AKG |
 |
1 |
| 14 | 5-bromo-2-[(3S)-piperidin-3-ylamino]benzoate | AKD |
 |
3 |
| 15 | 5-bromo-2-[(3R)-piperidin-3-ylamino]benzoic acid | AJD |
 |
3 |
| 16 | S-[(2E,6E,10E)-14-(dimethylamino)-3,7,11-trimethyltetradeca-2,6,10-trien-1-yl] trihydrogen thiodiphosphate | AG8 |
 |
1 |
| 17 | ADENOSINE | ADN |
 |
4 |
| 18 | ADENINE | ADE |
 |
1 |
| 19 | 4-[4-AMINO-6-(2,6-DICHLORO-PHENOXY)-[1,3,5]TRIAZIN-2-YLAMINO]-BENZONITRILE | ADB |
 |
1 |
| 20 | ACETYLCHOLINE | ACH |
 |
5 |
| 21 | 6-AMINOHEXANOIC ACID | ACA |
 |
4 |
| 22 | trans-4-(7-carbamoyl-1H-benzimidazol-2-yl)-1-propylpiperidinium | AAI |
 |
1 |
| 23 | N-9-(1',2',3',4'-TETRAHYDROACRIDINYL)-1,8-DIAMINOOCTANE | A8N |
 |
1 |
| 24 | 5-CHLORO-THIOPHENE-2-CARBOXYLIC ACID [2-(1--ISOPROPYL-PIPERIDIN-4-YLSULFAMOYL)-ETHYL]-AMIDE | A7I |
 |
1 |
| 25 | N-[(benzyloxy)carbonyl]-L-leucyl-N-{[4-(hydroxycarbamoyl)phenyl]methyl}-L-alaninamide | A6I |
 |
1 |
| 26 | 1-[3-chloranyl-5-(trifluoromethyl)pyridin-2-yl]-1,4-diazepane | A5K |
 |
1 |
| 27 | 4,4-difluoro-N-[(1S)-3-{(3-exo)-3-[3-methyl-5-(propan-2-yl)-4H-1,2,4-triazol-4-yl]-8-azabicyclo[3.2.1]octan-8-yl}-1-(thiophen-3-yl)propyl]cyclohexane-1-carboxamide | A4X |
 |
1 |
| 28 | N-[(1S)-3-{(3-exo)-3-[3-methyl-5-(propan-2-yl)-4H-1,2,4-triazol-4-yl]-8-azabicyclo[3.2.1]octan-8-yl}-1-(thiophen-2-yl)propyl]cyclopentanecarboxamide | A4R |
 |
1 |
| 29 | Adenosine Diphosphate (Hydroxymethyl)pyrrolidine monoalcohol | A3R |
 |
1 |
| 30 | N-[2-(diethylamino)ethyl]-1-(4-fluorophenyl)methanesulfonamide | A36 |
 |
1 |
| 31 | 5'-O-[(S)-{[(S)-{[(2R,3R,4S)-3,4-DIHYDROXYPYRROLIDIN-2-YL]METHOXY}(HYDROXY)PHOSPHORYL]OXY}(HYDROXY)PHOSPHORYL]ADENOSINE | A1R |
 |
1 |
| 32 | PHOSPHOMETHYLPHOSPHONIC ACID ADENOSYL ESTER | A12 |
 |
1 |
| 33 | 2-butyl-5-[(3-tert-butyl-1,2,4-oxadiazol-5-yl)methyl]-6-methyl-3-{[2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)[1,1'-biphenyl]-4-yl]methyl}pyrimidin-4(3H)-one | A0L |
 |
1 |