Acarbose EP Impurity B

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