16454-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16454-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,4,5 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 16454-40:
(7*1)+(6*6)+(5*4)+(4*5)+(3*4)+(2*4)+(1*0)=103
103 % 10 = 3
So 16454-40-3 is a valid CAS Registry Number.