139986-64-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139986-64-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,9,8 and 6 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 139986-64:
(8*1)+(7*3)+(6*9)+(5*9)+(4*8)+(3*6)+(2*6)+(1*4)=194
194 % 10 = 4
So 139986-64-4 is a valid CAS Registry Number.