The CAS Registry Mumber 657401-74-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,7,4,0 and 1 respectively; the second part has 2 digits, 7 and 4 respectively. Calculate Digit Verification of CAS Registry Number 657401-74: (8*6)+(7*5)+(6*7)+(5*4)+(4*0)+(3*1)+(2*7)+(1*4)=166 166 % 10 = 6 So 657401-74-6 is a valid CAS Registry Number.
Get Best Price for657401-74-6Acetic acid (3S,4aR,6aR,6bS,8aS,11S,12aR,14aR,14bR)-11-(tert-butyl-dimethyl-silanyloxymethyl)-4,4,6a,6b,8a,11,14b-heptamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydro-picen-3-yl ester