22716-40-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22716-40-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,7,1 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 22716-40:
(7*2)+(6*2)+(5*7)+(4*1)+(3*6)+(2*4)+(1*0)=91
91 % 10 = 1
So 22716-40-1 is a valid CAS Registry Number.