957502-57-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 957502-57-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,7,5,0 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 957502-57:
(8*9)+(7*5)+(6*7)+(5*5)+(4*0)+(3*2)+(2*5)+(1*7)=197
197 % 10 = 7
So 957502-57-7 is a valid CAS Registry Number.