89178-74-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89178-74-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,7 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 89178-74:
(7*8)+(6*9)+(5*1)+(4*7)+(3*8)+(2*7)+(1*4)=185
185 % 10 = 5
So 89178-74-5 is a valid CAS Registry Number.