What's the difference between naphthalene and naphthalic?
Naphthalene
Definition:
(n.) A white crystalline aromatic hydrocarbon, C10H8, analogous to benzene, and obtained by the distillation of certain bituminous materials, such as the heavy oil of coal tar. It is the type and basis of a large number of derivatives among organic compounds. Formerly called also naphthaline.
Example Sentences:
(1) The formation of 1-naphthol from naphthalene was investigated in rat brain 105,000 g particulate fraction.
(2) Synthesis of hexabromonaphthalenes (HBNs) by direct bromination of naphthalene results in a mixture of two isomers.
(3) Trospectomycin sulphate, a novel analogue of spectinomycin, was compared to spectinomycin, tetracycline, lincosamide, macrolide, quinolone and naphthalenic ansamycin-class antibiotics for in-vitro activity against Mycoplasma pneumoniae, M. hominis and Ureaplasma urealyticum.
(4) After prolonged adaptation of strain BN6 to growth on 6A2NS, this organism readily converted all naphthalene-2-sulfonates with OH- or NH2-substituents in the 5-, 6-, 7-, or 8-position.
(5) In contrast to wild-type F1 adenosine triphosphatase, the beta subunits of soluble ATPase from Escherichia coli mutant strains AN120 (uncA401) and AN939 (uncD412) were not labeled by the fluorescent thiol-specific reagents 5-iodoacetamidofluorescein, 2-(4'-iodoacetamidoanilino)naphthalene-6-sulfonic acid or 4-[N-(iodoacetoxy)ethyl-N-methyl]amino-7-nitrobenzo-2-oxa-1,3-diazole.
(6) In all cases, naphthalene was metabolised to a covalently bound product(s) and to two major methanol-soluble products, which co-chromatographed with 1-naphthol and 1,2-dihydro-1,2-dihydroxynaphthalene.
(7) The degradation of 3- and 4-HBs by these strains is therefore analogous to the metabolism of biphenyl, 2-HB, and naphthalene in the requirement for 2,3-catechol formation.
(8) The gamma-crystallin fractions II, III and IV from calf eye lens were treated with the thiol-specific fluorescent probe 2-(4'-maleimidylanilino)naphthalene-6-sulfonate (MIANS), in order to determine the reactivity of the seven (gamma-II) or six (gamma-III, gamma-IV) cysteine residues.
(9) Pinwheel inclusions (PWs) were found in cells of callus tissue derived from explants of secondary phloem parenchyma of carrot (Daucus carota) storage root and grown on a basal medium containing zeatin and indoleacetic acid or coconut milk, naphthalene acetic acid, or combinations of these.
(10) The organic portion of this structure demonstrates near-C2 symmetry with a pseudo-twofold axis coincident with the central C-C naphthalene ring bond.
(11) The m-xylene-adapted microorganisms in the aquifer column degraded toluene, benzaldehyde, benzoate, m-toluylaldehyde, m-toluate, m-cresol, p-cresol, and p-hydroxybenzoate but were unable to metabolize benzene, naphthalene, methylcyclohexane, and 1,3-dimethylcyclohexane.
(12) The absorbed and in the urine excreted 14C-activities are measured with a scintillation spectrophotometer and scintillator composed of 2,5-diphenyloxazole(POP), 1,4-bis-(4-methyl-5-phenyl-2-oxazolyl)benzene (dimethyl-POPOP), naphthalene, toluene and ethyleneglycol monomethylether.
(13) To examine this question in detail, intracellular glutathione levels were monitored in mouse hepatocytes incubated in the presence of various concentrations of naphthalene.
(14) A proprietary insecticidal mulesing powder containing diazinon and an experimental liquid dressing based on eucalyptus oil, naphthalene, cresylic acid and chlorfenvinphos in a carrier of liquid hydrocarbons and petroleum oil were compared for their ability to promote wound healing and reduce the incidence of fly strike in freshly mulesed lambs.
(15) Rates of mineralization were observed, as follows, for [14C]hexadecane greater than [14C]naphthalene greater than [14C]toluene greater than [14C]cyclohexane.
(16) Salicylic acid which accumulated as a product of naphthalene catabolism in the cultural broth of the wild strain was found to undergo further oxidation by the population of growing cells.
(17) Previous studies have demonstrated the formation of three glutathione conjugates during the hepatic and pulmonary microsomal metabolism of naphthalene in the presence of reduced glutathione and cytosolic enzymes containing the glutathione transferases.
(18) The ability of P. putida, strain NCIB 9816, to grow with naphthalene (Nah+) and salicylate (Sal+) is correlated with the presence of an 83 kilobase (kb) conjugative plasmid (pDTG1).
(19) Adjacent organic anions are separated by the Li+ ions and their coordination polyhedra, with the water molecules occupying positions above and below the naphthalene rings and participating in a three-dimensional hydrogen-bonded network.
(20) The minor isomer is definitively identified as 2,3,4,5,6,7-HBN by high-field nuclear magnetic resonance (NMR) spectroscopic analysis of brominated [1-13C]naphthalene-derived products.
Naphthalic
Definition:
(a.) Pertaining to, derived from, or related to, naphthalene; -- used specifically to denote any one of a series of acids derived from naphthalene, and called naphthalene acids.
(a.) Formerly, designating an acid probably identical with phthalic acid.
Example Sentences:
(1) A spectrophotometric method for the determination of free and conjugated 1,8-naphthalic acid in urine has been developed and has been used in the study of the metabolism of the acenaphthene-1,2-diols.
(2) The similarity of the side-chain characteristics of 1,4-dihydroxy-5,8-bis[[2-[(2-hydroxyethyl)amino]ethyl]amino]- anthraquinone (DHAQ), discovered by us in 1978, and those of the N-substituted imides of 3-nitro-1,8-naphthalic acid, discovered by other investigators recently, led us to conduct a systematic study on the N-(aminoalkyl)-substituted derivatives of a variety of imides.
(3) Two new antitumour drugs, imide derivatives of 3-nitro-1,8-naphthalic acid having different basic side chains linked to the imide nitrogen, have been shown to bind to double-helical DNA by intercalation.
(4) Preliminary biological activity screening indicated that N-(dialkylaminoethyl)imides of the 3,6-dinitro- and 3,6-diamino-1,8-naphthalic acid system possessed prominent antileukemia and antimelanoma activity in both in vitro and in vivo experimental tumor systems.
(5) 1,8-Naphthalic acid has been isolated as its anhydride from the urine of the dosed animals.
(6) However, microsomes isolated from shoots of seeds pretreated with naphthalic anhydride formed a single bentazon metabolite when provided with NADPH.
(7) Antidote 1,8-naphthalic anhydride increased by a factor of 2 the cellular level of glutathione.
(8) Terbinafine [(E)-N(6,6-dimethyl-2-hepten-4-ynyl)-N-methyl-1-naphthale nemethanamine], an antimycotic agent that inhibits fungal squalene epoxidase activity, was examined for its effects on platelet-derived growth factor (PDGF)-stimulated aortic smooth muscle cell DNA synthesis in vitro and neointimal proliferation in vivo.
(9) Results agree well with those obtained by Trinder's naphthal-hydroxamic acid precipitation method.
(10) Possible mechanisms for the microsomal ring-fission, involving 1,8-naphthalic aldehyde, are discussed.
(11) 1,8-Naphthalic acid was detected and isolated after microsomal incubations of the diols.
(12) Amonafide, one of a series of imide derivatives of 1,8-naphthalic acid synthesized by Brana et al.
(13) 1.14.14.1) and that a seed pretreatment with naphthalic anhydride is necessary for recovery of activity in vitro.