Acarbose EP Impurity D

Chemical Name: 4-O-[4,6-dideoxy-4-[[(1S,4R,5S,6S)-4,5,6-trihydroxy-3-(hydroxymethyl)cyclohex-2-enyl]amino]-α-D-glucopyranosyl]-D-glucopyranose (as per EP); 4-O-[4,6-Dideoxy-4-{[(1S,4R,5S,6S)-4,5,6-trihydroxy-3-(hydroxymethyl)cyclohex-2-enyl]amino}-α-d-glucopyranosyl]-d-glucopyranose (as per USP)