16165-49-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16165-49-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,1,6 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16165-49:
(7*1)+(6*6)+(5*1)+(4*6)+(3*5)+(2*4)+(1*9)=104
104 % 10 = 4
So 16165-49-4 is a valid CAS Registry Number.