lanreotide and its Impurities
Lanreotide is used in adults to treat: acromegaly that cannot be treated with surgery or radiation carcinoid syndrome. It is marketed under the trade name Somatuline.Reference standards of Lanreotide API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


((4R,7S,10S,13R,16S,19R)-13-((1H-Indol-3-yl)methyl)-19-((R)-2-amino-3-(naphthalen-2-yl)propanamido)-10-(4-aminobutyl)-16-(4-hydroxybenzyl)-7-isopropyl-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl)-L-threonine
((4R,7S,10S,13R,16S,19R)-13-((1H-Indol-3-yl)methyl)-19-((R)-2-amino-3-(naphthalen-2-yl)propanamido)-10-(4-aminobutyl)-16-(4-hydroxybenzyl)-7-isopropyl-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl)-L-threonine
Catalogue No.:PA 12 1691000
CAS :
150155-56-9
Molecular Formula : C54H68N10O11S2
Molecular Weight : 1097.32


(4R,7S,10S,13R,16S,19R)-19-((R)-2-Amino-3-(naphthalen-2-yl)propanamido)-N-((2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl)-10-(4-aminobutyl)-16-(4-hydroxybenzyl)-7-isopropyl-13-((1-nitroso-1H-indol-3-yl)methyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide
(4R,7S,10S,13R,16S,19R)-19-((R)-2-Amino-3-(naphthalen-2-yl)propanamido)-N-((2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl)-10-(4-aminobutyl)-16-(4-hydroxybenzyl)-7-isopropyl-13-((1-nitroso-1H-indol-3-yl)methyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide
Catalogue No.:PA PEP 001122
CAS :
NA
Molecular Formula : C54H68N12O11S2
Molecular Weight : 1125.33


(S)-6-Amino-2-((S)-2-((S)-2-((R)-2-((R)-2-amino-3-(naphthalen-2-yl)propanamido)-3-mercaptopropanamido)-3-(4-hydroxyphenyl)propanamido)-3-(1H-indol-3-yl)propanamido)-N-((S)-1-((3-(((2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl)amino)-3-oxoprop-1-en-2-yl)amino)-3-methyl-1-oxobutan-2-yl)hexanamide
(S)-6-Amino-2-((S)-2-((S)-2-((R)-2-((R)-2-amino-3-(naphthalen-2-yl)propanamido)-3-mercaptopropanamido)-3-(4-hydroxyphenyl)propanamido)-3-(1H-indol-3-yl)propanamido)-N-((S)-1-((3-(((2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl)amino)-3-oxoprop-1-en-2-yl)amino)-3-methyl-1-oxobutan-2-yl)hexanamide
Catalogue No.:PA PEP 001129
CAS :
NA
Molecular Formula : C54H69N11O10S
Molecular Weight : 1064.27


(3R,6S,9S,12S,15S,18R)-12-((1H-Indol-3-yl)methyl)-18-((R)-2-amino-3-(naphthalen-2-yl)propanamido)-N-((2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl)-9-(4-aminobutyl)-15-(4-hydroxybenzyl)-6-isopropyl-5,8,11,14,17-pentaoxo-1-thia-4,7,10,13,16-pentaazacyclononadecane-3-carboxamide
(3R,6S,9S,12S,15S,18R)-12-((1H-Indol-3-yl)methyl)-18-((R)-2-amino-3-(naphthalen-2-yl)propanamido)-N-((2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl)-9-(4-aminobutyl)-15-(4-hydroxybenzyl)-6-isopropyl-5,8,11,14,17-pentaoxo-1-thia-4,7,10,13,16-pentaazacyclononadecane-3-carboxamide
Catalogue No.:PA PEP 001130
CAS :
NA
Molecular Formula : C54H69N11O10S
Molecular Weight : 1064.27


(4R,7S,10S,13R,16S,19R)-13-((1H-Indol-3-yl)methyl)-19-((R)-2-amino-3-(naphthalen-2-yl)propanamido)-N-((2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl)-10-(4-aminobutyl)-16-(4-hydroxybenzyl)-7-isopropyl-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide 1-oxide
(4R,7S,10S,13R,16S,19R)-13-((1H-Indol-3-yl)methyl)-19-((R)-2-amino-3-(naphthalen-2-yl)propanamido)-N-((2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl)-10-(4-aminobutyl)-16-(4-hydroxybenzyl)-7-isopropyl-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide 1-oxide
Catalogue No.:PA PEP 001131
CAS :
NA
Molecular Formula : C54H69N11O11S2
Molecular Weight : 1112.33


(4R,7S,10S,13R,16S,19R)-19-((R)-2-Amino-3-(naphthalen-2-yl)propanamido)-N-((2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl)-10-(4-aminobutyl)-16-(4-hydroxybenzyl)-7-isopropyl-6,9,12,15,18-pentaoxo-13-((2-oxoindolin-3-yl)methyl)-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide
(4R,7S,10S,13R,16S,19R)-19-((R)-2-Amino-3-(naphthalen-2-yl)propanamido)-N-((2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl)-10-(4-aminobutyl)-16-(4-hydroxybenzyl)-7-isopropyl-6,9,12,15,18-pentaoxo-13-((2-oxoindolin-3-yl)methyl)-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide
Catalogue No.:PA PEP 001132
CAS :
NA
Molecular Formula : C54H69N11O11S2
Molecular Weight : 1112.33