905097-97-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 905097-97-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,5,0,9 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 905097-97:
(8*9)+(7*0)+(6*5)+(5*0)+(4*9)+(3*7)+(2*9)+(1*7)=184
184 % 10 = 4
So 905097-97-4 is a valid CAS Registry Number.