419564-15-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 419564-15-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,1,9,5,6 and 4 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 419564-15:
(8*4)+(7*1)+(6*9)+(5*5)+(4*6)+(3*4)+(2*1)+(1*5)=161
161 % 10 = 1
So 419564-15-1 is a valid CAS Registry Number.