• L-Cysteine, N-acetyl-,(aS)-6-methoxy-a-methyl-2-naphthaleneacetate(ester) (9CI)
• 89163-44-0
• C19H21 N O5 S
• 0
• .

• L-Proline, 5-oxo-,tetradecyl ester
• 37673-27-1
• C19H35 N O3
• 253-595-6
• 325.4861
• .

• L-Phenylalanine, L-g-glutamyl-
• 7432-24-8
• C₁₄H₁₈N₂O₅
• 231-077-0
• 294.3031
• .

• L-Glutamic acid,N-[(phenylmethoxy)carbonyl]-, 1-(1,1-dimethylethyl) ester
• 5891-45-2
• C₁₇H₂₃NO₆
• 337.3676
• .

• Lead hydroxide nitrate(Pb(OH)(NO3)) (8CI,9CI)
• 12268-84-7
• HN O4 Pb
• 235-543-4
• 286.21224
• .

• Lysoneuro (9CI)
• 11121-86-1
• 0
• .

• L-Ornithine,glycyl-L-serylglycyl-L-ornithyl-L-ornithyl-
• 23086-46-6
• C28H44 Fe N9 O13
• 0
• .

• Lutetium boride (LuB6),(OC-6-11)-
• 12046-37-6
• B6Lu
• 234-968-2
• 239.833
• .

• L-Arginine,N-acetyl-L-phenylalanyl-, ethyl ester (9CI)
• 69536-83-0
• C19H29 N5 O4
• 0
• .

• L-Galactopyranuronicacid, 2-(acetylamino)-2-deoxy-, 1®P'-ester with uridine 5'-(trihydrogen diphosphate) (9CI)
• 125710-37-4
• C17H25 N3 O18 P2
• 0
• .

• Lavender, Lavandula hybrida, ext.
• 91722-69-9
• 294-470-6
• .

• L-Cysteine,S-1H-purin-6-yl- (9CI)
• 125136-34-7
• C8H9 N5 O2 S
• 0
• .

• L-Threoninamide,D-phenylalanyl-L-cysteinyl-L-tyrosyl-D-tryptophyl-L-lysyl-L-leucyl-L-cysteinyl-,cyclic (2®7)-disulfide (9CI)
• 144500-17-4
• C51H69 N11 O10 S2
• .

• Larifan
• 129553-79-3
• 0
• .

• L-Norleucinamide,N-benzoyl-L-alanyl-L-alanyl-D-tryptophyl-L-phenylalanyl-D-prolyl-L-prolyl-
• 141636-65-9
• C49H61 N9 O8
• 904.06414
• .

• Lanthanum vanadium tetraoxide
• 13939-40-7
• LaO4V
• 237-717-5
• 253.8446
• .

• L-Cysteine,N-(9,10-dihydro-4-hydroxy-9,10-dioxo-1-anthracenyl)-, ethyl ester
• 166197-83-7
• C19H17 N O5 S
• .

• L-Alanine,N-(9,10-dihydro-4-hydroxy-9,10-dioxo-1-anthracenyl)-, hydrazide
• 156074-06-5
• C17H15 N3 O4
• .

• L-Leucine,N-(2,2,2-trifluoroacetyl)-
• 1480-30-4
• C8H12 F3 N O3
• 227.181
• .

• Lauric acid, monoester with glycerol monolactate
• 94279-20-6
• C18H34O6
• 304-765-4
• 346.45896
• .

• L-Leucine,L-alanyl-L-seryl-L-leucyl-L-a-aspartyl-L-lysyl-L-phenylalanyl-L-leucyl-L-alanyl-L-seryl-L-valyl-L-seryl-L-threonyl-L-valyl-(9CI)
• 125379-00-2
• C66H111 N15 O21
• 0
• .

• L-Phenylalanine,N-[(1,1-dimethylethoxy)carbonyl]-L-tryptophyl-L-leucyl-L-a-aspartyl-, 4-hydrazide (9CI)
• 125598-87-0
• C35H47 N7 O8
• 693.7898
• .

• L-Valine,N-(N-formyl-L-methionyl)- (9CI)
• 29790-45-2
• C₁₁H₂₀N₂O₄S
• 276.35
• .

• L-Tyrosine,L-arginyl-L-a-glutamyl-L-asparaginyl-L-leucyl-L-arginyl-L-isoleucyl-L-alanyl-L-leucyl-L-arginyl-
• 151204-02-3
• C57H98 N20 O15
• 1303.53
• .

• L-Phenylalanine,N-[(1,1-dimethylethoxy)carbonyl]-L-tryptophyl-, methyl ester
• 72156-62-8
• C26H31 N3 O5
• 465.5414
• .

• Lithium,(phenylmethyl)(tetrahydrofuran)-
• 93941-97-0
• C11H15 Li O
• 300-546-2
• 170.1772
• .

• Libanomycin A
• 102646-78-6
• C34H51 N3 O5
• .

• L-Ornithinamide,N5-hydroxy-N5-[(bR)-b-hydroxy-L-histidyl-b-alanyl-b-alanyl]-N2-methyl-L-ornithyl-N-[(3S)-1-hydroxy-2-oxo-3-piperidinyl]-(9CI)
• 168706-08-9
• C28H49 N11 O9
• .

• Luteinizinghormone-releasing factor (swine),6-[N6-[5-[2-[(2S,4S)-1,2,3,4,6,11-hexahydro-2,5,12-trihydroxy-7-methoxy-6,11-dioxo-4-[[2,3,6-trideoxy-3-(2,3-dihydro-1H-pyrrol-1-yl)-a-L-lyxo-hexopyranosyl]oxy]-2-naphthacenyl]-2-oxoethoxy]-1,5-dioxopentyl]-D-lysine]-
• 179910-83-9
• C95H121 N19 O26
• 0
• .

• L-Serine,N-[(2R,3R,4R,5R)-3,5-dihydroxy-2,4-dimethyl-1-oxooctadecyl]-L-valyl-L-threonyl-O-acetyl-,(3®15)-lactone
• 147334-89-2
• C34H61 N3 O9
• 0
• .

• L-Methionine,L-threonyl-L-arginyl-L-a-aspartyl-L-valyl-L-leucyl-L-asparaginyl-L-leucyl-L-tyrosyl-L-alanyl-L-a-aspartyl-L-phenylalanyl-L-isoleucyl-L-alanyl-L-seryl-(9CI)
• 122560-16-1
• C77H121 N19 O24 S
• 0
• .

• L-Tyrosine,O-[4-hydroxy-3-(iodo-125I)phenyl]-3,5-di(iodo-125I)-
• 24359-14-6
• C15H12 I3 N O4
• 644.974
• .

• L-Alanine,5-oxo-L-prolylglycyl-L-valyl-L-asparaginyl-L-a-aspartyl-L-asparaginyl-L-a-glutamyl-L-a-glutamylglycyl-L-phenylalanyl-L-phenylalanyl-L-seryl-
• 71494-32-1
• C60H81 N15 O24
• 0
• .

• L-Histidine,N-(ethoxycarbonyl)-
• 27932-76-9
• C9H13 N3 O4
• 0
• .

• L-Prolinamide,N-(4-methoxybenzoyl)-L-valyl-N-[(1S)-3,3,3-trifluoro-1-(1-methylethyl)-2-oxopropyl]-
• 171964-73-1
• C24H32 F3 N3 O5
• 0
• .

• L-Alaninamide,N-acetyl-L-alanyl-L-prolyl- (9CI)
• 30802-31-4
• C13H22 N4 O4
• 298.3382
• .

• L-Isoleucine,N2-acetyl-L-lysyl-L-lysyl-L-arginyl-L-prolyl-L-prolylglycyl-N-methyl-L-phenylalanyl-L-seryl-3-(2-naphthalenyl)-D-alanyl-
• 229030-07-3
• C64H95 N15 O13
• .

• L-Threonine,N-[N-[N-[N2-[N-[N-(N-L-a-glutamyl-L-leucyl)-L-tyrosyl]-L-leucyl]-L-glutaminyl]-L-seryl]-L-leucyl]-(9CI)
• 95034-35-8
• C44H71 N9 O15
• 0
• .

• L-Phenylalaninamide,N-(4-carboxy-1-oxobutyl)-L-alanyl-L-alanyl-N-(4-methyl-2-oxo-2H-1-benzopyran-7-yl)-
• 144398-31-2
• C30H34 N4 O8
• 0
• .

• Lysostaphin
• 9011-93-2
• C₁₀H₁₄N₂O₃S
• 0
• .

• L-Lysine, calcium salt(2:1)
• 6150-68-1
• C6H14 N2 O2 . 1/2 Ca
• 228-160-9
• 330.43724
• .

• Lithium,(2,6-dimethoxyphenyl)-
• 2785-97-9
• C8H9 Li O2
• 220-502-5
• 144.1
• .

• L-Cysteine,S-[[(2-carboxy-2-hydroxyethyl)sulfonyl]methyl]- (9CI)
• 30892-74-1
• C7H13 N O7 S2
• 250-373-0
• 287.3106
• .

• L-Prolinamide,N-[(hexahydro-1-methyl-2,6-dioxo-4-pyrimidinyl)carbonyl]-D-histidyl-, (S)-(9CI)
• 128111-65-9
• C17H23 N7 O5
• 405.4084
• .

• L-glycero-D-altro-Pentadec-14-en-7-ulo-7,4-furanosonicacid,2,7-anhydro-3,4-di-C-carboxy-8,9,10,12,13,14,15-heptadeoxy-10,12-dimethyl-15-phenyl-,5-[(6E,12E)-6,12-tetradecadienoate], (7S,10x,11x,12x)- (9CI)
• 146389-61-9
• C39H54 O13
• 730.8383
• .

• L-Asparagine,N-[2-(acetylamino)-2-deoxy-D-galactopyranosyl]-
• 100991-94-4
• C12H21 N3 O8
• 0
• .

• L-Phenylalanine,4-(aminoiminomethyl)-N-[N-[1-[(4-methylphenyl)sulfonyl]-L-prolyl]glycyl]- (9CI)
• 115160-13-9
• C24H29 N5 O6 S
• 515.582
• .

• L-Arabinonic acid,2-butyl-2,5-dideoxy-, g-lactone, 3-(3-methylbutanoate)
• 27981-25-5
• C14H24 O4
• .

• L-Glutamine,N2-[N-[N2-[N2-[N-[N-[N-[N-[N2-(N-L-serylglycyl)-L-arginyl]-L-methionyl]-L-seryl]-L-isoleucyl]-L-valyl]-L-lysyl]-L-asparaginyl]-L-leucyl]-(9CI)
• 122998-75-8
• C51H93 N17 O16 S
• 1232.4534
• .

• L-Cysteine-35S,N-acetyl- (9CI)
• 22196-77-6
• C5H9 N O3 S
• .