14938-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 14938-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,9,3 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 14938-57:
(7*1)+(6*4)+(5*9)+(4*3)+(3*8)+(2*5)+(1*7)=129
129 % 10 = 9
So 14938-57-9 is a valid CAS Registry Number.