148-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 148-57-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,4 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 148-57:
(5*1)+(4*4)+(3*8)+(2*5)+(1*7)=62
62 % 10 = 2
So 148-57-2 is a valid CAS Registry Number.