β-D-galactopyranosyl-(1->6)-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose is a complex carbohydrate molecule, specifically a disaccharide, consisting of two galactose units linked together. The first galactose unit is in the β-D-galactopyranosyl form, while the second is in the α-D-galactopyranose form. The molecule features a 1,2:3,4-di-O-isopropylidene protecting group, which is used to shield the hydroxyl groups at positions 1,2 and 3,4, preventing unwanted side reactions during chemical synthesis. β-D-galactopyranosyl-(1->6)-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose is of interest in the field of organic chemistry, particularly in the synthesis of complex carbohydrates and the study of their biological properties.
The CAS Registry Mumber 51885-41-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,8,8 and 5 respectively; the second part has 2 digits, 4 and 1 respectively. Calculate Digit Verification of CAS Registry Number 51885-41: (7*5)+(6*1)+(5*8)+(4*8)+(3*5)+(2*4)+(1*1)=137 137 % 10 = 7 So 51885-41-7 is a valid CAS Registry Number.