The title Schiff base compound, C(18)H(13)NO(2), is a zwitterion, with the naphthol hy-droxy group deprotonated and the imine N atom protonated. It adopts an E configuration about the central C=N double bond. The dihedral angle between the naphthyl ring system and the benzene ring is 1.73 (11)°. An intra-molecular N-H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, adjacent mol-ec...

Insects from a variety of Orders have been shown to detoxify phenols by conjugation with glucose and this mechanism has been suggested as a systematic biochemical characteristic of insects (Smith, 1955a). The phenols may be foreign compounds or may be those formed in the normal course of metabolism (Smith, 1955b, 1964; Kent & Brunet, 1959; Stay & Roth, 1962; Butenandt, Biekert, Kubler & Linzen,...

A colony blot enzyme-linked immunosorbent assay was developed for the rapid identification of smooth Brucella species, i.e., Brucella abortus, B. melitensis, and B. suis. Bacterial colonies from plates were blotted onto nitrocellulose disks, lysed by immersion in chloroform, and reacted with BRU 38, a rat monoclonal antibody with specificity for the O side chain of B. abortus. Reaction with ant...

Observations on the binding of a variety of chemical carcinogens, or their metabolites, to protein in tumor-sensitive tissues have led to the concept that such binding plays a role in carcinogenesis (2). In the case of certain aromatic amines, such as 2-naphthylamine and 4-aminobiphenyl, which produce bladder cancer, it appears that the metabolites rather than the parent compounds are carcinoge...

a green and efficient one pot, three component protocol for synthesis of naphthopyranopyrimidines by cyclocondensation of β-naphthol, aldehyde, and 6-amino-1,3-dimethyluracil using l-proline as a beneficial catalyst with high catalytic activity under solvent-free conditions at 100 °c is described. in this study, several types of aromatic aldehyde, containing electron-withdrawing groups as well ...

bifunctional acidic ionic liquids, having both h-imidazolium and -so3h groups as cation moieties (h-bfails) and cf3so3- as anion, were synthesized in high yields. these h-bfails showed significant hydrophilic properties, lower acidity and higher thermal stability relative to common ionic liquids, due to their unique structures. the (propyl or butyl-3-sulfonic) imidazolium trifluoromethane sulfo...

A myeloid cell line, designated P1-21 . was established from the peripheral blood of a patient with acute promyelocyt.c leukemia. The P1-21 cell line grew in single-cell suspension, with a doubling time of 48-64 hr. and consisted of promyelocytes with fine immature nuclei and prominent azurophilic granules in the cytoplasm. P1-21 cells were positive for peroxidase, naphthol AS-D chloroacetate e...

The present work describes modifications to an existing TLC bioautographic method for detecting acetylcholinesterase inhibitors from plant extracts. The basic principle of the method is that the enzyme converts 1-naphthyl acetate into naphthol which reacts with Fast Blue B salt to make a purple-colored background on the TLC plates. Inhibitors of acetylcholinesterases produced white spots on the...

graphene, a new member of the carbon family, was used as an adsorbent due to its exceptional capability to remove rhodamine b (rb) and malachite green (mg), two organic dyes, from aqueous solutions. adsorption kinetics of rb and mg onto graphene and adsorption capacity of the adsorbent were studied. also the effects of parameters, including ph, contact time, temperature, and adsorbent dosage we...