89178-76-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89178-76-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,7 and 8 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 89178-76:
(7*8)+(6*9)+(5*1)+(4*7)+(3*8)+(2*7)+(1*6)=187
187 % 10 = 7
So 89178-76-7 is a valid CAS Registry Number.