57702-30-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57702-30-4 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 2 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 57702-30:
(7*5)+(6*7)+(5*7)+(4*0)+(3*2)+(2*3)+(1*0)=124
124 % 10 = 4
So 57702-30-4 is a valid CAS Registry Number.