72890-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72890-90-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,8,9 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 72890-90:
(7*7)+(6*2)+(5*8)+(4*9)+(3*0)+(2*9)+(1*0)=155
155 % 10 = 5
So 72890-90-5 is a valid CAS Registry Number.