lactose and its Impurities
It is a lactose adduct of Cetirizine, which exists as a mixture of diastereomers. Reference standards of Lactose API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


(S)-1-(((2R,3S,4S,5R)-2,3-Dihydroxy-5-(hydroxymethyl)-4-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)tetrahydrofuran-2-yl)methyl)-4-isobutylpyrrolidin-2-one
(S)-1-(((2R,3S,4S,5R)-2,3-Dihydroxy-5-(hydroxymethyl)-4-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)tetrahydrofuran-2-yl)methyl)-4-isobutylpyrrolidin-2-one
Catalogue No.:PA 12 0731003
CAS :
466678-45-5
Molecular Formula : C20H35NO11
Molecular Weight : 465.5