244291-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 244291-57-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,4,2,9 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 244291-57:
(8*2)+(7*4)+(6*4)+(5*2)+(4*9)+(3*1)+(2*5)+(1*7)=134
134 % 10 = 4
So 244291-57-4 is a valid CAS Registry Number.