57012-40-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57012-40-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,0,1 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 57012-40:
(7*5)+(6*7)+(5*0)+(4*1)+(3*2)+(2*4)+(1*0)=95
95 % 10 = 5
So 57012-40-5 is a valid CAS Registry Number.