16856-46-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16856-46-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,8,5 and 6 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 16856-46:
(7*1)+(6*6)+(5*8)+(4*5)+(3*6)+(2*4)+(1*6)=135
135 % 10 = 5
So 16856-46-5 is a valid CAS Registry Number.