1057-24-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1057-24-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,5 and 7 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1057-24:
(6*1)+(5*0)+(4*5)+(3*7)+(2*2)+(1*4)=55
55 % 10 = 5
So 1057-24-5 is a valid CAS Registry Number.