19857-03-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19857-03-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,5 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 19857-03:
(7*1)+(6*9)+(5*8)+(4*5)+(3*7)+(2*0)+(1*3)=145
145 % 10 = 5
So 19857-03-5 is a valid CAS Registry Number.