28783-05-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28783-05-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,7,8 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 28783-05:
(7*2)+(6*8)+(5*7)+(4*8)+(3*3)+(2*0)+(1*5)=143
143 % 10 = 3
So 28783-05-3 is a valid CAS Registry Number.