218934-11-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 218934-11-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,8,9,3 and 4 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 218934-11:
(8*2)+(7*1)+(6*8)+(5*9)+(4*3)+(3*4)+(2*1)+(1*1)=143
143 % 10 = 3
So 218934-11-3 is a valid CAS Registry Number.