216447-28-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216447-28-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,4,4 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 216447-28:
(8*2)+(7*1)+(6*6)+(5*4)+(4*4)+(3*7)+(2*2)+(1*8)=128
128 % 10 = 8
So 216447-28-8 is a valid CAS Registry Number.