42728-35-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42728-35-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,7,2 and 8 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 42728-35:
(7*4)+(6*2)+(5*7)+(4*2)+(3*8)+(2*3)+(1*5)=118
118 % 10 = 8
So 42728-35-8 is a valid CAS Registry Number.