220719-79-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220719-79-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,7,1 and 9 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 220719-79:
(8*2)+(7*2)+(6*0)+(5*7)+(4*1)+(3*9)+(2*7)+(1*9)=119
119 % 10 = 9
So 220719-79-9 is a valid CAS Registry Number.