72291-80-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72291-80-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,2,9 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 72291-80:
(7*7)+(6*2)+(5*2)+(4*9)+(3*1)+(2*8)+(1*0)=126
126 % 10 = 6
So 72291-80-6 is a valid CAS Registry Number.