117888-55-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117888-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,8,8 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 117888-55:
(8*1)+(7*1)+(6*7)+(5*8)+(4*8)+(3*8)+(2*5)+(1*5)=168
168 % 10 = 8
So 117888-55-8 is a valid CAS Registry Number.