223930-18-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223930-18-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,9,3 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 223930-18:
(8*2)+(7*2)+(6*3)+(5*9)+(4*3)+(3*0)+(2*1)+(1*8)=115
115 % 10 = 5
So 223930-18-5 is a valid CAS Registry Number.