16222-18-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16222-18-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,2,2 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 16222-18:
(7*1)+(6*6)+(5*2)+(4*2)+(3*2)+(2*1)+(1*8)=77
77 % 10 = 7
So 16222-18-7 is a valid CAS Registry Number.