• Lithium acetylide(Li2(C2)) (6CI,7CI,8CI,9CI)
• 1070-75-3
• C2Li2
• 213-980-1
• 37.90
• .

• L-ASCORBYL DIPALMITATE
• 28474-90-0
• C₃₈H₆₈O₈
• 652.9417
• .

• L-Tryptophanamide,5-oxo-L-prolyl-L-leucyl-L-asparaginyl-L-tyrosyl-L-seryl-L-prolyl-L-a-aspartyl- (9CI)
• 134599-16-9
• C47H61 N11 O14
• 0
• .

• L-chiro-Inositol,1-O-[2-(acetylamino)-2-deoxy-b-D-glucopyranosyl]-4,5-dideoxy-4-(hydroxymethyl)- (9CI)
• 148253-86-5
• C15H27 N O10
• 0
• .

• L-Alanine,N-[2-[(acetylthio)methyl]-1-oxo-3-phenylpropyl]-, methyl ester, (S)- (9CI)
• 124815-64-1
• C16H21 N O4 S
• 323.4072
• .

• L-Glutamic acid,N-[4-[[(2-amino-3,4-dihydro-4-oxopyrido[2,3-d]pyrimidin-6-yl)methyl]amino]benzoyl]-
• 85597-17-7
• C20H20 N6 O6
• 0
• .

• L-Glutamic acid,(3S,4S)-4-(5-hydroxy-2-pyridinyl)-3-methyl-L-homoseryl-(6R)-2-amino-3,6-anhydro-2-deoxy-6-C-(4-formyl-2,3-dihydro-2-oxo-1H-imidazol-1-yl)-L-allonoyl-
• 77368-60-6
• C25H32 N6 O13
• 0
• .

• Lead bromide (PbBr)(6CI,8CI,9CI)
• 15576-47-3
• BrPb
• 367.008
• .

• L-Isoleucinamide,1-[(1,1-dimethylethoxy)carbonyl]-L-prolyl-L-phenylalanyl-N-methyl-L-histidyl-(2S,4S,5S)-5-amino-4-hydroxy-7-methyl-2-(1-methylethyl)octanoyl-N-(2-pyridinylmethyl)-
• 103336-05-6
• C50H75 N9 O8
• 0
• .

• L-Lysine,L-lysyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-lysyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-lysyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-L-lysyl-L-leucyl-L-leucyl-L-leucyl-L-leucyl-
• 138531-07-4
• C126H238 N26 O22
• 0
• .

• L-Aspartic acid,N-(N-L-arginylglycyl)-, homopolymer (9CI)
• 119865-10-0
• C12 H22 N6 O6
• 0
• .

• Lysine, 5-hydroxy-
• 504-91-6
• C6H14 N2 O3
• 0
• .

• L-Glutamine,N2-[4-[[(2,4-diamino-6-pteridinyl)methyl]methylamino]benzoyl]-N-pentyl-
• 64801-59-8
• C25H33 N9 O4
• 523.5874
• .

• L-Cysteine,S-(3-hydroxy-1,1-dimethylpropyl)-
• 471-09-0
• C8H17 N O3 S
• 207.29
• .

• Lanthanum chloride(LaCl3), hexahydrate (8CI,9CI)
• 17272-45-6
• Cl₃H₁₂LaO₆
• 231-595-7
• 353.36
• .

• L-Argininamide,L-threonyl-L-lysyl-L-prolyl-N-[2-[(1-oxohexadecyl)amino]ethyl]- (9CI)
• 94359-48-5
• C39H76 N10 O6
• 0
• .

• Lontrel 205
• 79636-51-4
• C₁₄H₉Cl₄NO₅
• 0
• .

• L-Norleucine,5-oxo-6-phosphono-
• 74317-96-7
• C6H12 N O6 P
• 0
• .

• L-Valinamide,L-arginyl-L-leucyl-L-leucyl-L-glutaminylglycyl-L-leucyl- (9CI)
• 45323-83-9
• C36H68 N12 O8
• 0
• .

• L-Methioninamide,L-arginyl-D-tryptophyl-4-methyl-L-phenylalanyl-D-tryptophyl-L-leucyl- (9CI)
• 129244-81-1
• C49H66 N12 O6 S
• 951.1901
• .

• L-Proline,1-[3-[(2-amino-2-carboxyethyl)dithio]-2-methyl-1-oxopropyl]-, [R-(R*,S*)]-(9CI)
• 75479-46-8
• C12H20 N2 O5 S2
• 0
• .

• L-Guluronic acid,2-(acetylamino)-2,3-dideoxy-3-[(1-iminoethyl)amino]-
• 104602-08-6
• C10H17 N3 O6
• 0
• .

• Lanost-8-ene-3,16,25-triol,20,24-epoxy-, (17x,20x)- (9CI)
• 31298-99-4
• C30H50 O4
• .

• Leucosulfakinin I (9CI)
• 105520-56-7
• C65H88 N18 O22 S2
• 0
• .

• L-Glutamic acid,N-[4-(1,3-diamino-5,6,6a,7,8,9-hexahydropyrimido[5,4-e]indolizin-8-yl)benzoyl]-
• 103003-96-9
• C22H26 N6 O5
• 454.479
• .

• L-Isoleucine,N-(2,4-dinitrophenyl)-
• 1655-56-7
• C12H15 N3 O6
• 216-744-6
• 297.26
• .

• L-Glutamic acid,N-[4-[[(2-amino-1,4-dihydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]-L-g-glutamyl-L-g-glutamyl-L-g-glutamyl-L-g-glutamyl-L-g-glutamyl-L-g-glutamyl-
• 6484-74-8
• C49H61 N13 O24
• 1216.08134
• .

• Lipoprotein I(Pseudomonas aeruginosa clone pITaq1 protein moiety) (9CI)
• 125691-83-0
• C283H475 N97 O103 S2
• 0
• .

• L-Alanine,N-[N-[N-(N-L-alanyl-O-phosphono-L-threonyl)-O-phosphono-L-tyrosyl]-L-seryl]-(9CI)
• 145079-47-6
• C22H35 N5 O15 P2
• 0
• .

• L-Prolinamide,N-acetyl-L-leucyl-L-isoleucyl-L-glutaminyl-D-isovalyl-L-isoleucyl-L-threonyl-2-methylalanyl-L-leucyl-2-methylalanyl-(4R)-4-hydroxy-L-prolyl-L-glutaminyl-2-methylalanyl-(4R)-4-hydroxy-L-prolyl-2-methylalanyl-N-[(1S)-1-(hydroxymethyl)-2-phenylethyl]-
• 135995-68-5
• C85H140 N18 O22
• 0
• .

• L-Ornithine,N5-(1-iminoethyl)-
• 36889-13-1
• C₇H₁₅N₃O₂
• 173.2129
• .

• L-Leucinamide,N-[(phenylmethoxy)carbonyl]-L-leucyl-N-[(1S)-1-formyl-3-methylbutyl]-
• 133407-82-6
• C₂₆H₄₁N₃O₅
• 475.62084
• .

• L-Glutamic acid,N-[4-[2-(2-amino-1,4-dihydro-4-oxo-6-pteridinyl)ethoxy]benzoyl]- (9CI)
• 72254-43-4
• C20H20 N6 O7
• 0
• .

• L-Phenylalanine,L-lysyl-L-tyrosyl-L-tyrosylglycyl-L-asparaginylglycyl-L-valyl-L-histidyl-L-cysteinyl-L-threonyl-L-lysyl-L-serylglycyl-L-cysteinyl-L-seryl-L-valyl-L-asparaginyl-L-tryptophylglycyl-L-a-glutamyl-L-alanyl-L-alanyl-L-seryl-L-alanylglycyl-L-isoleucyl-L-histidyl-L-arginyl-L-leucyl-L-alanyl-L-asparaginylglycylglycyl-L-asparaginylglycyl-(9CI)
• 146701-12-4
• .

• L-Threonine,3-(2-naphthalenyl)-D-alanyl-L-cysteinyl-L-tyrosyl-D-tryptophyl-L-lysyl-L-valyl-L-cysteinyl-,cyclic (2®7)-disulfide (9CI)
• 150155-56-9
• C54H68 N10 O11 S2
• .

• L-Glutamic acid,N-[4-[[(2-amino-5-formyl-1,4,5,6,7,8-hexahydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]-,calcium salt (1:1)
• 6209-45-6
• C₂₀H₂₁CaN₇O₇
• 216-082-8
• 511.5014
• .

• L-Phenylalaninamide,N-(4-carboxy-1-oxobutyl)-L-alanyl-L-tyrosylglycyl-L-tryptophyl-L-leucyl-L-a-aspartyl- (9CI)
• 51987-65-6
• C49H61 N9 O13
• 0
• .

• Lithium boride (LiB12)
• 58572-50-2
• B12Li
• 261-337-9
• 136.673
• .

• L-Argininamide,D-valylglycyl-N-(4-nitrophenyl)- (9CI)
• 80798-23-8
• C19H30 N8 O5
• 0
• .

• L-Phenylalanine,N-methyl-N-[N-(N-L-tyrosyl-D-alanyl)glycyl]-, 2-(1-oxopropyl)hydrazide (9CI)
• 72732-46-8
• C27H36 N6 O6
• 0
• .

• Lanosta-8,24-dien-26-oicacid, 3,20-dihydroxy-7,11,15-trioxo-, (3b,20x,24E)- (9CI)
• 150033-91-3
• C30H42 O7
• .

• L-Histidinamide,N2-(1-oxo-3-phenylpropyl)-L-glutaminyl-L-tryptophyl-L-alanyl-L-valylglycyl-N-[(1S)-1-[[(4R)-4-carboxy-3-thiazolidinyl]methyl]-3-methylbutyl]-
• 162382-68-5
• C51H70 N12 O10 S
• .

• L-Lysine,N2-[4-[[(2-amino-1,4,7,8-tetrahydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]-N6-[[(3',6'-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-5-yl)amino]thioxomethyl]-(9CI)
• 133648-13-2
• C41H37 N9 O9 S
• 0
• .

• L-Phenylalanine,N2-[[[(1S)-1-carboxy-2-phenylethyl]amino]carbonyl]-D-lysyl-L-valyl-(aS)-a-amino-4-hydroxybenzenebutanoyl-N-methyl-L-alanyl-,cyclic (5®16)-peptide (9CI)
• 173429-61-3
• C44H57 N7 O9
• .

• Lutetium, bis(acetato-kO)[9,10-diethyl-20,21-bis[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]-4,15-dimethyl-8,11-imino-3,6:16,13-dinitrilo-1,18-benzodiazacycloeicosine-5,14-dipropanolato-kN1,kN18,kN23,kN24,kN25]-, hydrate, (PB-7-11-233'2'4)- (9CI)
• 156436-90-7
• C52H72 Lu N5 O14 . x H2 O
• 1253.2645
• .

• L-Phenylalanine,phenylmethyl ester
• 962-39-0
• C16H17 N O2
• 213-511-0
• 255.31168
• .

• Leucinamide,N-(3-methyl-1-oxobutyl)tyrosyl-N-[1-formyl-2-(4-hydroxyphenyl)ethyl]- (9CI)
• 121024-51-9
• C29H39 N3 O6
• 0
• .

• L-Tyrosine,O-(4-hydroxy-3,5-diiodophenyl)-3-iodo-
• 5817-39-0
• C₁₅H₁₂I₃NO₄
• 229-999-3
• 650.97
• .

• L-Tryptophan,N-[[5-(dimethylamino)-1-naphthalenyl]sulfonyl]-
• 19461-29-1
• C23H23 N3 O4 S
• 437.51
• .

• L-Arginine,N2-[(1,1-dimethylethoxy)carbonyl]-
• 13726-76-6
• C₁₁H₂₂N₄O₄
• 237-295-2
• 274.32
• .