218602-65-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 218602-65-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,8,6,0 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 218602-65:
(8*2)+(7*1)+(6*8)+(5*6)+(4*0)+(3*2)+(2*6)+(1*5)=124
124 % 10 = 4
So 218602-65-4 is a valid CAS Registry Number.