22789-93-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22789-93-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,7,8 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 22789-93:
(7*2)+(6*2)+(5*7)+(4*8)+(3*9)+(2*9)+(1*3)=141
141 % 10 = 1
So 22789-93-1 is a valid CAS Registry Number.