16172-85-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16172-85-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,1,7 and 2 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 16172-85:
(7*1)+(6*6)+(5*1)+(4*7)+(3*2)+(2*8)+(1*5)=103
103 % 10 = 3
So 16172-85-3 is a valid CAS Registry Number.