71226-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71226-40-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,2 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 71226-40:
(7*7)+(6*1)+(5*2)+(4*2)+(3*6)+(2*4)+(1*0)=99
99 % 10 = 9
So 71226-40-9 is a valid CAS Registry Number.