• L-Glutamic acid,N-[4-[[(2-amino-3,4-dihydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]-, sodiumsalt (1:1)
• 6484-89-5
• C₁₉H₁₇N₇Na₂O₆
• 229-348-3
• 485.36112
• .

• L-Aspartic acid,N-[4-[[(2,4-diamino-6-pteridinyl)methyl]amino]benzoyl]-, monosodium salt (9CI)
• 64049-04-3
• C18H18 N8 O5 . Na
• 587.37
• .

• Lanthanum sulfide(LaS2)
• 64896-81-7
• LaS2
• 371.00028
• .

• Leucine,N-[(2,4-dihydroxy-6-methyl-5-pyrimidinyl)sulfonyl]-, ethyl ester (7CI,8CI)
• 6383-97-7
• C13H21 N3 O6 S
• 450.2847
• .

• L-Methioninamide,5-oxo-L-prolyl-L-phenylalanyl-L-phenylalanylglycyl-L-leucyl- (9CI)
• 61123-13-5
• C36H49 N7 O7 S
• 723.88
• .

• L-Prolinamide,N2-[(phenylmethoxy)carbonyl]-L-glutaminyl-L-tryptophyl-L-seryl-L-tyrosyl-D-phenylalanyl-L-leucyl-L-arginyl-N-ethyl-(9CI)
• 64153-06-6
• C64H84 N14 O13
• 0
• .

• L-Histidine,hydrochloride (1:1)
• 645-35-2
• C₆H₉N₃O₂^.HCl
• 211-438-9
• 191.64
• .

• L-Prolinamide,glycyl-N-(4-nitrophenyl)-
• 60189-43-7
• C13H16 N4 O4
• 0
• .

• L-Glutamic acid,N-[4-[[(2,4-diamino-6-pteridinyl)methyl]amino]-2-methoxybenzoyl]-
• 65118-34-5
• C20H22 N8 O6
• 0
• .

• L-Leucine,N-[(2S,3R)-3-amino-2-hydroxy-1-oxo-4-phenylbutyl]-, hydrochloride (1:1)
• 65391-42-6
• C₁₆H₂₅ClN₂O₄
• 344.83
• .

• Luteinizinghormone-releasing factor (swine), 2-D-phenylalanine-3-L-valine-6-D-tryptophan-(9CI)
• 64891-34-5
• C61H83 N15 O13
• 1234.59
• .

• L-Lysine,L-threonyl-L-lysyl-L-prolyl-
• 63138-91-0
• C21H40 N6 O6
• 0
• .

• L-Glutamic acid,1-ethyl ester, hydrochloride (9CI)
• 64942-50-3
• C7H13 N O4 . Cl H
• 265-286-3
• 211.64336
• .

• L-Mannose, 6-deoxy-,diethyl dithioacetal
• 6748-70-5
• C10H22 O4 S2
• 270.40928
• .

• L-Phenylalanine,N-[(phenylmethoxy)carbonyl]-, 1,2-dibromoethyl ester
• 64187-43-5
• C19H19 Br2 N O4
• 485.21
• .

• L-Valine,glycyl-L-prolyl-L-arginyl- (9CI)
• 61067-05-8
• C18H33 N7 O5
• 0
• .

• L-Tyrosine, 3-nitro-,ethyl ester, hydrochloride (1:1)
• 66737-54-0
• C11H14 N2 O5 . Cl H
• 266-466-4
• 290.7
• .

• L-Glutamic acid,N-[N-[4-[[(2,4-diamino-6-pteridinyl)methyl]methylamino]benzoyl]-L-phenylalanyl]-(9CI)
• 65118-40-3
• C29H31 N9 O6
• 0
• .

• L-Tyrosinamide,L-seryl-L-a-glutamyl-L-isoleucyl-L-glutaminyl-L-phenylalanyl-L-norleucyl-L-histidyl-L-asparaginyl-L-leucylglycyl-L-lysyl-L-histidyl-L-leucyl-L-seryl-L-seryl-L-norleucyl-L-a-glutamyl-L-arginyl-L-valyl-L-a-glutamyl-L-tryptophyl-L-leucyl-L-arginyl-L-lysyl-L-lysyl-L-leucyl-L-glutaminyl-L-a-aspartyl-L-valyl-L-histidyl-L-asparaginyl-(9CI)
• 64297-16-1
• C177H279 N53 O48
• 3917.44
• .

• L-Tyrosine,3-iodo-O-[3-iodo-4-(sulfooxy)phenyl]-
• 64192-57-0
• C15H13 I2 N O7 S
• 0
• .

• L-Tyrosine, a-methyl-
• 672-87-7
• C10H13 N O3
• 211-599-5
• 195.22
• .

• L-Glutamic acid,N-[(2S)-1-oxo-2-(phosphonooxy)propyl]-L-g-glutamyl-, (1®5)-ester with1-deoxy-1-(3,4-dihydro-8-hydroxy-2,4-dioxopyrimido[4,5-b]quinolin-10(2H)-yl)-D-ribitol
• 64885-97-8
• C29H36 N5 O18 P
• 0
• .

• L-Arginine,N2-[N-[4-(phenylazo)benzoyl]glycyl]-, methyl ester, monohydrochloride, (E)-(9CI)
• 64532-81-6
• C22H27 N7 O4 . Cl H
• 489.9552
• .

• L-Leucinamide,L-tyrosylglycylglycyl-L-phenylalanyl-
• 60117-24-0
• C28H38 N6 O6
• 554.63792
• .

• L-Histidinamide,5-oxo-L-prolyl-N-ethyl- (9CI)
• 65213-42-5
• C13H19 N5 O3
• 0
• .

• L-Arginine,L-alanyl-L-seryl-L-histidyl-L-leucylglycyl-L-leucyl-L-alanyl-
• 63555-63-5
• C35H61 N13 O10
• 823.9399
• .

• L-Cysteine,S-(carboxymethyl)-
• 638-23-3
• C₅H₉NO₄S
• 211-327-5
• 179.19426
• .

• L-Tryptophan,N-formyl-L-methionyl- (9CI)
• 60189-52-8
• C17H21 N3 O4 S
• 363.43
• .

• L-Prolinamide,L-tyrosyl-D-alanylglycyl-L-phenylalanyl-N-ethyl- (9CI)
• 64267-97-6
• C30H40 N6 O6
• 0
• .

• L-Norvaline, 5-hydroxy-
• 6152-89-2
• C5H11 N O3
• 0
• .

• Thymulin
• 63958-90-7
• C₃₃H₅₄N₁₂O₁₅
• 858.8533
• .

• L-Alanine,hydrochloride (1:1)
• 6003-05-0
• C₃H₈ClNO₂
• 227-849-1
• 125.55
• .

• L-Glutamic acid, L-a-aspartyl-
• 6157-06-8
• C9H14 N2 O7
• 262.22
• .

• L-Phenylalanine,L-leucyl-L-arginyl-L-isoleucyl-L-valyl-L-glutaminyl-L-cysteinyl-L-arginyl-L-seryl-L-valyl-L-a-glutamylglycyl-L-seryl-L-cysteinylglycyl-,cyclic (6®13)-disulfide
• 66004-58-8
• C69H114 N22 O21 S2
• 0
• .

• Lanosta-7,24-dien-21-oicacid, 16-hydroxy-3,6-dioxo-, g-lactone, (13a,14b,16b,17a)- (9CI)
• 64929-59-5
• C30H42 O4
• 0
• .

• L-Phenylalanine,N-[(phenylmethoxy)carbonyl]-, ethenyl ester
• 64187-42-4
• C19H19 N O4
• 325.39
• .

• L-Tryptophan,N-(chloroacetyl)- (9CI)
• 64709-57-5
• C₁₃H₁₃ClN₂O₃
• 265-029-5
• 280.71
• .

• L-chiro-Inositol,2-O-methyl-
• 642-38-6
• C7H14 O6
• 194.18246
• .

• L-Alanine, 3-cyano-
• 6232-19-5
• C₄H₆N₂O₂
• 114.1026
• .

• L-Tyrosine, O-acetyl-
• 6636-22-2
• C11H13 N O4
• 223.23
• .

• L-Ascorbic acid, freeradical from
• 6730-29-6
• C6H7 O6
• 0
• .

• L-Methioninamide,L-tyrosyl-D-alanylglycyl-L-phenylalanyl-
• 61090-95-7
• C28H38 N6 O6 S
• 586.7029
• .

• L-Arginine, L-a-aspartyl-L-seryl-L-a-aspartyl-L-prolyl-
• 62087-72-3
• C22H36 N8 O11
• 588.57
• .

• L-Cysteine,S-(2-aminoethyl)-, dihydrochloride (9CI)
• 63905-31-7
• C5H12 N2 O2 S . 2 Cl H
• 264-556-8
• 237.14786
• .

• L-Phenylalaninamide,L-prolyl-N-[(1S)-4-[(aminoiminomethyl)amino]-1-(2-chloroacetyl)butyl]-
• 65149-23-7
• C21H31 Cl N6 O3
• 450.96
• .

• Lanost-8-ene-2,3,12,24,25-pentol,2-[3-hydroxy-5-[(2-methoxy-2-oxoethyl)amino]-3-methyl-5-oxopentanoate], (2a,3b,12a,24R)- (9CI)
• 64971-23-9
• C39H65 N O10
• 707.9341
• .

• L-Argininamide,D-valyl-L-leucyl-N-(4-nitrophenyl)-
• 64816-14-4
• C23H38 N8 O5
• 0
• .

• L-Tyrosinamide,1-acetyl-L-prolyl-L-alanyl-L-prolyl- (9CI)
• 60240-19-9
• C24H33 N5 O6
• 0
• .

• L-Prolinamide,N-[(1,1-dimethylethoxy)carbonyl]-D-phenylalanyl-N-[(1S)-4-[(aminoiminomethyl)amino]-1-formylbutyl]-(9CI)
• 69201-89-4
• C25H38 N6 O5
• 0
• .

• L-Apiose
• 6477-44-7
• C5H10 O5
• 0
• .