28916-54-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28916-54-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,9,1 and 6 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 28916-54:
(7*2)+(6*8)+(5*9)+(4*1)+(3*6)+(2*5)+(1*4)=143
143 % 10 = 3
So 28916-54-3 is a valid CAS Registry Number.