17681-80-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17681-80-0 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 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 17681-80:
(7*1)+(6*7)+(5*6)+(4*8)+(3*1)+(2*8)+(1*0)=130
130 % 10 = 0
So 17681-80-0 is a valid CAS Registry Number.