89159-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89159-71-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,5 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 89159-71:
(7*8)+(6*9)+(5*1)+(4*5)+(3*9)+(2*7)+(1*1)=177
177 % 10 = 7
So 89159-71-7 is a valid CAS Registry Number.