97690-19-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97690-19-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,6,9 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 97690-19:
(7*9)+(6*7)+(5*6)+(4*9)+(3*0)+(2*1)+(1*9)=182
182 % 10 = 2
So 97690-19-2 is a valid CAS Registry Number.