222631-77-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 222631-77-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,2,6,3 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 222631-77:
(8*2)+(7*2)+(6*2)+(5*6)+(4*3)+(3*1)+(2*7)+(1*7)=108
108 % 10 = 8
So 222631-77-8 is a valid CAS Registry Number.