957-28-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 957-28-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,5 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 957-28:
(5*9)+(4*5)+(3*7)+(2*2)+(1*8)=98
98 % 10 = 8
So 957-28-8 is a valid CAS Registry Number.