17686-56-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17686-56-5 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 6 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 17686-56:
(7*1)+(6*7)+(5*6)+(4*8)+(3*6)+(2*5)+(1*6)=145
145 % 10 = 5
So 17686-56-5 is a valid CAS Registry Number.