97404-78-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97404-78-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,4,0 and 4 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 97404-78:
(7*9)+(6*7)+(5*4)+(4*0)+(3*4)+(2*7)+(1*8)=159
159 % 10 = 9
So 97404-78-9 is a valid CAS Registry Number.