57903-91-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57903-91-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,9,0 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 57903-91:
(7*5)+(6*7)+(5*9)+(4*0)+(3*3)+(2*9)+(1*1)=150
150 % 10 = 0
So 57903-91-0 is a valid CAS Registry Number.