89280-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89280-71-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,2,8 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 89280-71:
(7*8)+(6*9)+(5*2)+(4*8)+(3*0)+(2*7)+(1*1)=167
167 % 10 = 7
So 89280-71-7 is a valid CAS Registry Number.