117889-67-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117889-67-5 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 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 117889-67:
(8*1)+(7*1)+(6*7)+(5*8)+(4*8)+(3*9)+(2*6)+(1*7)=175
175 % 10 = 5
So 117889-67-5 is a valid CAS Registry Number.