216525-24-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216525-24-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,5,2 and 5 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 216525-24:
(8*2)+(7*1)+(6*6)+(5*5)+(4*2)+(3*5)+(2*2)+(1*4)=115
115 % 10 = 5
So 216525-24-5 is a valid CAS Registry Number.