0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| K | POTASSIUM ION |
| K05 | (E)-3,4-DIHYDROXY-N'-[(2-METHOXYNAPHTHALEN-1-YL)METHYLENE]BENZOHYDRAZIDE |
| K1R | (2S)-2-AMINO-4-[({[(2R)-2-AMINO-2-CARBOXYETHYL]THIO}AMINO)SULFINYL]BUTANOIC ACID |
| K21 | 4-[3-{1-(4-BENZYL)PIPERODINYL}PROPIONYL]-7-METHOXY-2,3,4,5-TERTRAHYDRO-1,4-BENZOTHIAZEPINE |
| K25 | 4,5,6,7-TETRABROMO-N,N-DIMETHYL-1H-BENZIMIDAZOL-2-AMINE |
| K37 | 4,5,6,7-TETRABROMO-2-(METHYLSULFANYL)-1H-BENZIMIDAZOLE |
| K44 | 5,6,7,8-TETRABROMO-1-METHYL-2,3-DIHYDRO-1H-IMIDAZO[1,2-A]BENZIMIDAZOLE |
| K57 | 3-[2-HYDROXY-3-(3-HYDROXY-2-METHYL-BENZOYLAMINO)-4-PHENYL-BUTYRYL]-5,5-DIMETHYL-THIAZOLIDINE-4-CARBOXYLIC ACID TERT-BUTYLAMIDE |
| K64 | 3-[2-HYDROXY-3-(3-HYDROXY-2-METHYL-BENZOYLAMINO)-4-PHENYL-BUTYRYL]-5,5- DIMETHYL-THIAZOLIDINE-4-CARBOXYLIC ACID 2-METHYL-BENZYLAMIDE |
| KAB | KABIRAMIDE C |
| KAG | 2'-DEOXY-N-[(1S)-1-METHYL-3-OXOPROPYL]GUANOSINE 5'-PHOSPHATE |
| KAH | 5-AMINO-4-HYDROXYHEXANOIC ACID |
| KAI | 3-CARBOXYMETHYL-4-ISOPROPYL-PYRROLIDINE-2-CARBOXYLIC ACID |
| KAM | N-[7-KETO-8-AMINOPELARGONIC ACID]-[3-HYDROXY-2-METHYL-5-PHOSPHONOOXYMETHYL-PYRIDIN-4-YL-METHANE] |
| KAN | KANAMYCIN A |
| KAP | 7-KETO-8-AMINOPELARGONIC ACID |
| KAR | 3"-(BETA-CHLOROETHYL)-2",4"-DIOXO-3, 5"-SPIRO-OXAZOLIDINO-4-DEACETOXY-VINBLASTINE |
| KBG | 2-KETO-BETA-D-GLUCOSE |
| KCP | 2-[CARBOXY-(2-THIOPHEN-2-YL-ACETYLAMINO)-METHYL]-5-METHYL-3,6-DIHYDRO-2H-[1,3]THIAZINE-4-CARBOXYLIC ACID |
| KCX | LYSINE NZ-CARBOXYLIC ACID |
| KDA | (3-DEOXY-D-MANNO-OCT-2-ULOSONIC ACID)-2-O-ALLYL |
| KDG | 2-KETO-3-DEOXYGLUCONATE |
| KDO | 3-DEOXY-D-MANNO-OCT-2-ULOSONIC ACID |
| KE4 | (4R)-5-AMINO-4-[({3-HYDROXY-2-METHYL-5-[(PHOSPHONOOXY)METHYL]PYRIDIN-4-YL}METHYL)AMINO]PENTANOIC ACID |
| KEF | CEFUROXIME (OCT-3-ENE FORM) |
| KEG | 12-TUNGSTOPHOSPHATE |
| KET | 2-[(3-HYDROXY-2-METHYL-5-PHOSPHONOOXYMETHYL-PYRIDIN-4-YLMETHYLENE)-AMINO]-SUCCINIC ACID |
| KEU | N-{4-[(1R)-4-[(2R,4R,5S)-2,4-DIAMINO-6-OXOHEXAHYDROPYRIMIDIN-5-YL]-1-(2,2,2-TRIFLUORO-1,1-DIHYDROXYETHYL)BUTYL]BENZOYL}-D-GLUTAMIC ACID |
| KGR | 5-KETO-4-DEOXYGLUCARATE |
| KGY | 4-({[4-(BUT-2-YN-1-YLOXY)PHENYL]SULFONYL}METHYL)-1-[(3,5-DIMETHYLISOXAZOL-4-YL)SULFONYL]-N-HYDROXYPIPERIDINE-4-CARBOXAMIDE |
| KH1 | 5-(2-{1-[1-(4-ETHYL-4-HYDROXY-HEXYLOXY)-ETHYL]-7A-METHYL-OCTAHYDRO-INDEN-4-YLIDENE}-ETHYLIDENE)-4-METHYLENE-CYCLOHEXANE-1,3-DIOL |
| KHA | 1-(4-{[(2-HYDROXYETHYL)AMINO]CARBONYL}BENZYL)-1-METHYLPIPERIDINIUM |
| KHO | 4-(3,4-DIHYDROXY-5-HYDROXYMETHYL-TETRAHYDRO-FURAN-2-YLOXY)-TETRAHYDRO-PYRAN-2,3,5-TRIOL |
| KHP | 2-HYDROXYMETHYL-5-(4-NITRO-PHENOXY)-TETRAHYDRO-FURAN-3,4-DIOL |
| KI2 | 3-BENZYLOXYCARBONYLAMINO-2-HYDROXY-4-PHENYL-BUTYRIC ACID |
| KIF | KIFUNENSINE |
| KIR | KIRROMYCIN |
| KIV | 3-METHYL-2-OXOBUTANOIC ACID |
| KJ2 | 4-{4-[4-(3-AMINOPROPOXY)PHENYL]-1H-PYRAZOL-5-YL}-6-CHLOROBENZENE-1,3-DIOL |
| KMB | 2-AMINO-6-AMINOMETHYL-8-PHENYLSULFANYLMETHYL-3H-QUINAZOLIN-4-ONE |
| KMP | 3,5,7-TRIHYDROXY-2-(4-HYDROXYPHENYL)-4H-CHROMEN-4-ONE |
| KMT | 4-(METHYLSULFANYL)-2-OXOBUTANOIC ACID |
| KNI | (N-TERT-BUTYL-THIOPROLINE)-(5-ISOQUINOLYLOXYACETYL-METHYLTHIOALANINE)-ALLOPHENYLNORSTATINE |
| KO4 | POTASSIUM ION, 4 WATERS COORDINATED |
| KOJ | 5-HYDROXY-2-(HYDROXYMETHYL)-4H-PYRAN-4-ONE |
| KOR | L-HOMOCYSTEINE-S-N-S-L-CYSTEINE |
| KOS | 17-DESMETHOXY-17-N,N-DIMETHYLAMINOETHYLAMINO-GELDANAMYCIN |
| KPA | 2-OXO-5-PHOSPHONOPENTANOIC ACID |
| KPC | (2-[2-KETOPROPYLTHIO]ETHANESULFONATE |
| KPH | LYSINE PHOSPHINIC ACID GROUP |
| KPL | KETOPANTOATE |
| KR | KRYPTON |
| KRA | KURASOIN A |
| KRB | KURASOIN B |
| KRI | (S)-2-AMINO-4-[(2S,3R)-2,3,5-TRIHYDROXY-4-OXO-PENTYL]MERCAPTO-BUTYRIC ACID |
| KSA | K-252A |
| KSG | (1S,2R,3S,4R,5S,6S)-2,3,4,5,6-PENTAHYDROXYCYCLOHEXYL 2-AMINO-4-{[CARBOXY(IMINO)METHYL]AMINO}-2,3,4,6-TETRADEOXY-ALPHA-D-ARABINO-HEXOPYRANOSIDE |
| KT3 | N-{4-4-(2,4-DIAMINO-6-OXO-1,6-DIHYDRO-PYRIMIDIN-5-YL)-1-(2,2,2-TRIFLUORO-1,1-DIHYDROXY-ETHYL)-BUT-2-YL-BENZOYL}-GAMMA-GLUTAMYL-GAMMA-GLUTAMYL-GLUTAMIC ACID |
| KT5 | N-{4-4-(2,4-DIAMINO-6-OXO-1,6-DIHYDRO-PYRIMIDIN-5-YL)-1-(2,2,2-TRIFLUORO-1,1-DIHYDROXY-ETHYL)-BUT-2-YL-BENZOYL}-GAMMA-GLUTAMYL-GAMMA-GLUTAMYL-GAMMA-GLUTAMYL-GAMMA-GLUTAMYL-GLUTAMIC ACID |
| KTH | 2-KETOTHIAZOLE |
| KTN | CIS-1-ACETYL-4-(4-((2-(2,4-DICHLOROPHENYL)-2-(1H-IMIDAZOL-1-YLMETHYL)-1,3-DIOXOLAN-4-YL)METHOXY)PHENYL)PIPERAZINE |
| KTP | (2-NAPHTHALEN-2-YL-1-NAPHTHALEN-1-YL-2-OXO-ETHYL)-PHOSPHONIC ACID |
| KWT | (1S,6BR,9AS,11R,11BR)-9A,11B-DIMETHYL-1-[(METHYLOXY)METHYL]-3,6,9-TRIOXO-1,6,6B,7,8,9,9A,10,11,11B-DECAHYDRO-3H-FURO[4,3,2-DE]INDENO[4,5-H][2]BENZOPYRAN-11-YL ACETATE |
| KY1 | 4-(2-AMINOPHENYL)-4-OXOBUTANOIC ACID |
| KYN | KYNURENINE |