57042-65-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57042-65-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,0,4 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 57042-65:
(7*5)+(6*7)+(5*0)+(4*4)+(3*2)+(2*6)+(1*5)=116
116 % 10 = 6
So 57042-65-6 is a valid CAS Registry Number.