86557-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 86557-17-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,6,5,5 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 86557-17:
(7*8)+(6*6)+(5*5)+(4*5)+(3*7)+(2*1)+(1*7)=167
167 % 10 = 7
So 86557-17-7 is a valid CAS Registry Number.