222979-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 222979-17-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,2,9,7 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 222979-17:
(8*2)+(7*2)+(6*2)+(5*9)+(4*7)+(3*9)+(2*1)+(1*7)=151
151 % 10 = 1
So 222979-17-1 is a valid CAS Registry Number.