4-<α-Hydroxy-α-(p-toluolsulfonylamino)-acetyl>-biphenyl is a complex organic compound with the molecular formula C20H19NO4S. It features a biphenyl core, with one of the phenyl rings substituted at the 4-position. Attached to this core is an α-hydroxy-α-(p-toluolsulfonylamino)-acetyl group, which adds a hydroxyl group, an amino group, and a p-toluolsulfonyl group to the molecule. 4-<α-Hydroxy-α-(p-toluolsulfonylamino)-acetyl>-biphenyl is characterized by its unique structure, which includes a sulfonyl group that can participate in various chemical reactions, such as nucleophilic substitution. It is a white crystalline solid and is used in the synthesis of pharmaceuticals and other organic compounds due to its reactivity and structural diversity.
The CAS Registry Mumber 2166-95-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,6 and 6 respectively; the second part has 2 digits, 9 and 5 respectively. Calculate Digit Verification of CAS Registry Number 2166-95: (6*2)+(5*1)+(4*6)+(3*6)+(2*9)+(1*5)=82 82 % 10 = 2 So 2166-95-2 is a valid CAS Registry Number.