97158-69-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97158-69-5 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 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 97158-69:
(7*9)+(6*7)+(5*1)+(4*5)+(3*8)+(2*6)+(1*9)=175
175 % 10 = 5
So 97158-69-5 is a valid CAS Registry Number.