121111-63-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121111-63-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,1,1 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 121111-63:
(8*1)+(7*2)+(6*1)+(5*1)+(4*1)+(3*1)+(2*6)+(1*3)=55
55 % 10 = 5
So 121111-63-5 is a valid CAS Registry Number.