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Ethyl 4-{(E)-[(2-hydroxy-1-naphthyl)methylene]amino}benzoate is a complex organic compound with the molecular formula C20H17NO3. It is characterized by a benzoate group attached to an ethyl chain, with a 4-amino-benzene ring that is connected to a naphthalene moiety through a methylene bridge. The naphthalene ring has a hydroxyl group at the 2-position and is part of a Schiff base with the amino group. Ethyl 4-{(E)-[(2-hydroxy-1-naphthyl)methylene]amino}benzoate is known for its potential applications in the pharmaceutical industry, particularly as an intermediate in the synthesis of certain drugs. Its structure provides it with unique chemical properties that can be exploited in various chemical reactions and formulations.

743-91-9

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743-91-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 743-91-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,4 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 743-91:
(5*7)+(4*4)+(3*3)+(2*9)+(1*1)=79
79 % 10 = 9
So 743-91-9 is a valid CAS Registry Number.

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