97155-70-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97155-70-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,1,5 and 5 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 97155-70:
(7*9)+(6*7)+(5*1)+(4*5)+(3*5)+(2*7)+(1*0)=159
159 % 10 = 9
So 97155-70-9 is a valid CAS Registry Number.