83493-57-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83493-57-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,4,9 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 83493-57:
(7*8)+(6*3)+(5*4)+(4*9)+(3*3)+(2*5)+(1*7)=156
156 % 10 = 6
So 83493-57-6 is a valid CAS Registry Number.