16654-49-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16654-49-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,6,5 and 4 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16654-49:
(7*1)+(6*6)+(5*6)+(4*5)+(3*4)+(2*4)+(1*9)=122
122 % 10 = 2
So 16654-49-2 is a valid CAS Registry Number.