89758-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89758-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,7,5 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 89758-72:
(7*8)+(6*9)+(5*7)+(4*5)+(3*8)+(2*7)+(1*2)=205
205 % 10 = 5
So 89758-72-5 is a valid CAS Registry Number.