99178-73-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99178-73-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,1,7 and 8 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 99178-73:
(7*9)+(6*9)+(5*1)+(4*7)+(3*8)+(2*7)+(1*3)=191
191 % 10 = 1
So 99178-73-1 is a valid CAS Registry Number.