1218394-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1218394-64-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,8,3,9 and 4 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1218394-64:
(9*1)+(8*2)+(7*1)+(6*8)+(5*3)+(4*9)+(3*4)+(2*6)+(1*4)=159
159 % 10 = 9
So 1218394-64-9 is a valid CAS Registry Number.