17680-03-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17680-03-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,6,8 and 0 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 17680-03:
(7*1)+(6*7)+(5*6)+(4*8)+(3*0)+(2*0)+(1*3)=114
114 % 10 = 4
So 17680-03-4 is a valid CAS Registry Number.