57044-44-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57044-44-7 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 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57044-44:
(7*5)+(6*7)+(5*0)+(4*4)+(3*4)+(2*4)+(1*4)=117
117 % 10 = 7
So 57044-44-7 is a valid CAS Registry Number.