The CAS Registry Mumber 201984-66-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,9,8 and 4 respectively; the second part has 2 digits, 6 and 6 respectively. Calculate Digit Verification of CAS Registry Number 201984-66: (8*2)+(7*0)+(6*1)+(5*9)+(4*8)+(3*4)+(2*6)+(1*6)=129 129 % 10 = 9 So 201984-66-9 is a valid CAS Registry Number.
Get Best Price for201984-66-92,6,11,15-Tetraazaheptadecanoic acid,
6,11-bis[(1,1-dimethylethoxy)carbonyl]-17,17,17-trifluoro-16-oxo-,
1,1-dimethylethyl ester