(a.) Designating an orange-red dyestuff obtained from naphthylamine, and called magdala red, naphthalene red, etc.
Example Sentences:
(1) The programme alleges that the Home Office ignored evidence presented by Ellis's solicitor Victor Mischon that she had an accomplice when she shot her lover David Blakely, an upper-class racing driver, outside the Magdala pub in Hampstead, north London, on Easter Sunday 1955.
Naphthylamine
Definition:
(n.) One of two basic amido derivatives of naphthalene, C10H7.NH2, forming crystalline solids.
Example Sentences:
(1) The determinations were carried out at 0.5, 1, 2, 4, 8 and 16 hours and 1, 2, 3, 5 and 7 days following extraction using N-L-aminoacyl-2-naphthylamines of arginine, glycine, leucine, proline and valine as the substrates.
(2) Antisera to NADPH-cytochrome c reductase markedly decreased hydroxylamine accumulation during incubation but had no effect on the rate of 2-naphthylamine N-oxidation.
(3) 2-Naphthylhydroxylamine was metabolized by the dog, rat and guinea pig to the same products as those formed by these species from 2-naphthylamine.
(4) There was no evidence that the sulphonic group of Tobias acid is cleaved in the body to a significant extent to give 2-naphthylamine.
(5) The best results are furnished by 1-naphthylamine dervatives.
(6) A second isoenzyme eluted with an apparent pl of 6.2, displayed a subunit molecular weight of 54,000 after SDS-PAGE, and catalyzed the glucuronidation of p-nitrophenol, 4-methylumbelliferone, alpha-naphthylamine, and 4-aminobiphenyl, but not that of estriol.
(7) The spectrofluorimetric data indicate that following transformation the probe N-phenyl 1-naphthylamine resides in a more polar environment.
(8) The determination of the radial distance of Cys-374 was accomplished by using monobromobimane and N-[[(iodoacetyl)amino]ethyl]-5- naphthylamine-1-sulfonate as donors and N-[4-[[4-(dimethylamino)phenyl]azo]phenyl]maleimide as acceptor; the results were consistent with a radial coordinate for this residue of 20-25 A.
(9) Purified IF1 was treated with 2-iminothiolane and N-[[(iodoacetyl)-amino]ethyl]-5-naphthylamine-1-sulfonic acid in order to prepare a covalent fluorescent derivative without eliminating positive charges on the protein required for biochemical activity.
(10) Pretreatment of rats with 3-methylcholanthrene or Arochlor 1254 enhanced the mutagenicity of 2-naphthylamine while treatments with phenobarbitone, safrole and clofibrate had no significant effect.
(11) Four naphthyl compounds, N,N,dimethyl-1-naphthylamine, N-1-naphthyl-ethylene-diamine dihydrochloride, 8-amino-1-naphthol-5-sulphonic acid, and 1-dimethylamino naphthalene-5-sulphonic acid, were evaluated as replacements for alpha-naphthyl amine in the bacteriological nitrate reduction test.
(12) No urothelial tumor occurred in the workers exposed to beta-naphthylamine.
(13) Samples containing alpha-naphthylamine gave oleic and malic acids which disintegrated with time of exposure.
(14) Among carcinogens identified in the work environment, tars, soots and oils with content of polycyclic aromatic hydrocarbons (46.5%), chromium compounds (24.3%), "other" chemicals like ferric oxide, dichlorobenzidine, N-Phenyl-2-naphthylamine (9.1%), and asbestos (9.1%) have predominated in proportions given in brackets.
(15) A fluorescent derivative of calf thymus histone H4 has been prepared by the reaction of methionine-84 with N-(iodoacetylaminoethyl)8-naphthylamine-1-sulfonic acid at pH 2.4 in 8 M urea.
(16) A new method is described for the determination of the herbicide naptalam and its metabolite 1-naphthylamine in several foods.
(17) In this study, we examined the in vitro hepatic metabolism of the carcinogens, 2-aminofluorene (2-AF) and 2-naphthylamine (2-NA), and the suspected carcinogen, 1-naphthylamine (1-NA), using high-pressure liquid chromatography.
(18) Both forms were subsequently purified to apparent homogeneity by affinity chromatography on UDP-hexanolamine Sepharose 4B, 3-Methylcholanthrene-inducible enzyme activity towards 1-naphthol, 4-nitrophenol, 3-hydroxybenzo(a)pyrene and N-hydroxy-2-naphthylamine copurified with one enzyme form (enzyme 1).
(19) The genetic toxicity of 12 chemicals with sufficient data is discussed in detail: benzoin, caffeine caprolactam, ethanol, halothane, hycanthone methanesulfonate, malathion, maleic hydrazide, methotrexate, 1-naphthylamine, 4-nitro-o-phenylenediamine, and p-phenylenediamine.
(20) 2-Amino-1-naphthyl hydrogen sulphate can be rapidly isolated from the urine of dogs dosed with 2-naphthylamine by precipitation with cetylpyridinium bromide.