Vosoritide D-Ser-20 Impurity

NA

H-Pro-Gly-Gln-Glu-His-Pro-Asn-Ala-Arg-Lys-Tyr-Lys-Gly-Ala-Asn-Lys-Lys-Gly-Leu-D-Ser-Lys-Gly-Cys(1)-Phe-Gly-Leu-Lys-Leu-Asp-Arg-Ile-Gly-Ser-Met-Ser-Gly-Leu-Gly-Cys(1)-OH; L-prolyl-glycyl-L-glutaminyl-L-alpha-glutamyl-L-histidyl-L-prolyl-L-asparagyl-L-alanyl-L-arginyl-L-lysyl-L-tyrosyl-L-lysyl-glycyl-L-alanyl-L-asparagyl-L-lysyl-L-lysyl-glycyl-L-leucyl-L-seryl-L-lysyl-glycyl-L-cysteinyl-L-phenylalanyl-glycyl-L-leucyl-L-lysyl-L-leucyl-L-alpha-aspartyl-L-arginyl-L-isoleucyl-glycyl-L-seryl-L-methionyl-L-seryl-glycyl-L-leucyl-glycyl-L-cysteine (23->39)-disulfide; (4R,10S,16S,19S,22S,28S,31S,34S,37S,40S,43S,49S,52R)-52-(2-((S)-2-((R)-2-((S)-2-(2-((S)-2-((S)-2-((S)-2-((S)-2-(2-((S)-2-((S)-2-((S)-2-((S)-2-((S)-2-((S)-2-((S)-1-(L-prolylglycyl-L-glutaminyl-L-glutamyl-L-histidyl)pyrrolidine-2-carboxamido)-4-amino-4-oxobutanamido)propanamido)-5-guanidinopentanamido)-6-aminohexanamido)-3-(4-hydroxyphenyl)propanamido)-6-aminohexanamido)acetamido)propanamido)-4-amino-4-oxobutanamido)-6-aminohexanamido)-6-aminohexanamido)acetamido)-4-methylpentanamido)-3-hydroxypropanamido)-6-aminohexanamido)acetamido)-40-(4-aminobutyl)-49-benzyl-28-((S)-sec-butyl)-34-(carboxymethyl)-31-(3-guanidinopropyl)-16,22-bis(hydroxymethyl)-10,37,43-triisobutyl-19-(2-(methylthio)ethyl)-6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51-hexadecaoxo-1,2-dithia-5,8,11,14,17,20,23,26,29,32,35,38,41,44,47,50-hexadecaazacyclotripentacontane-4-carboxylic Acid;