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66375-87-9

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66375-87-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66375-87-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,3,7 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 66375-87:
(7*6)+(6*6)+(5*3)+(4*7)+(3*5)+(2*8)+(1*7)=159
159 % 10 = 9
So 66375-87-9 is a valid CAS Registry Number.

66375-87-9Downstream Products

66375-87-9Relevant articles and documents

Process for preparing antibacterial compounds

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, (2008/06/13)

4-(4-Halo-3-nitrophenyl)pyridines, useful as intermediates in the synthesis of antibacterial 1-alkyl-1,4-dihydro-4-oxo-7-pyridinyl-3-quinolinecarboxylic acids, are obtained by nitrating 4-(4-halophenyl)pyridines. The 4-(4-halo-3-nitrohenyl)pyridines may be converted to the antibacterial agents by reducing them to 4-(3-aminophenyl)pyridines and then subjecting the amino compounds to suitable known reactions.

Cyclic alkylidenyl N-(lower-alkyl)-3-(pyridinyl)anilinomethylenemalonates

-

, (2008/06/13)

Cyclic alkylidenyl N-(lower-alkyl)-3-PY-anilinomethylenemalonates (I), where PY is 4- or 3-pyridinyl or 4- or 3-pyridinyl having one or two lower-alkyl substituents, are prepared by reacting cyclic alkylidenyl (lower-alkoxy)methylenemalonate (II) with N-(lower-alkyl)-3-PY-aniline (III). Also, I is heated with polyphosphoric acid to produce 1-(lower-alkyl)-1,4-dihydro-4-oxo-7-PY-3-quinolinecarboxylic acid, known antibacterial agents. The N-(lower-alkyl)-3-PY-anilines are produced by reducing the corresponding N-(3-PY-phenyl)-(lower-alkanamides).

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