freeEnd--1?1HexNAc(--??1HexNAc--??1Hex((--??1Hex--??1HexNAc--??1Hex--??2D-Kdn,p)--??1Hex--??1HexNAc)--??1HexNAc)--??1dHex$MONO,Und,0,0,freeEnd
