The CAS Registry Mumber 88121-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,1,2 and 1 respectively; the second part has 2 digits, 2 and 3 respectively. Calculate Digit Verification of CAS Registry Number 88121-23: (7*8)+(6*8)+(5*1)+(4*2)+(3*1)+(2*2)+(1*3)=127 127 % 10 = 7 So 88121-23-7 is a valid CAS Registry Number.
Get Best Price for88121-23-7Acetic acid (2R,3S,3aR,9aR)-2-(6-amino-purin-9-yl)-5,5,7,7-tetraisopropyl-tetrahydro-1,4,6,8-tetraoxa-5,7-disila-cyclopentacycloocten-3-yl ester