178258-17-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 178258-17-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,2,5 and 8 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 178258-17:
(8*1)+(7*7)+(6*8)+(5*2)+(4*5)+(3*8)+(2*1)+(1*7)=168
168 % 10 = 8
So 178258-17-8 is a valid CAS Registry Number.