97788-16-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97788-16-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,7,8 and 8 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 97788-16:
(7*9)+(6*7)+(5*7)+(4*8)+(3*8)+(2*1)+(1*6)=204
204 % 10 = 4
So 97788-16-4 is a valid CAS Registry Number.