57701-42-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57701-42-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,0 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57701-42:
(7*5)+(6*7)+(5*7)+(4*0)+(3*1)+(2*4)+(1*2)=125
125 % 10 = 5
So 57701-42-5 is a valid CAS Registry Number.