22130-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22130-77-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,1,3 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 22130-77:
(7*2)+(6*2)+(5*1)+(4*3)+(3*0)+(2*7)+(1*7)=64
64 % 10 = 4
So 22130-77-4 is a valid CAS Registry Number.