219814-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219814-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,8,1 and 4 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 219814-64:
(8*2)+(7*1)+(6*9)+(5*8)+(4*1)+(3*4)+(2*6)+(1*4)=149
149 % 10 = 9
So 219814-64-9 is a valid CAS Registry Number.