216568-84-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216568-84-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,5,6 and 8 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 216568-84:
(8*2)+(7*1)+(6*6)+(5*5)+(4*6)+(3*8)+(2*8)+(1*4)=152
152 % 10 = 2
So 216568-84-2 is a valid CAS Registry Number.