1698393-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1698393-17-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,9,8,3,9 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1698393-17:
(9*1)+(8*6)+(7*9)+(6*8)+(5*3)+(4*9)+(3*3)+(2*1)+(1*7)=237
237 % 10 = 7
So 1698393-17-7 is a valid CAS Registry Number.