16885-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16885-89-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,8,8 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16885-89:
(7*1)+(6*6)+(5*8)+(4*8)+(3*5)+(2*8)+(1*9)=155
155 % 10 = 5
So 16885-89-5 is a valid CAS Registry Number.