100518-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100518-21-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,5,1 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 100518-21:
(8*1)+(7*0)+(6*0)+(5*5)+(4*1)+(3*8)+(2*2)+(1*1)=66
66 % 10 = 6
So 100518-21-6 is a valid CAS Registry Number.