naphthoquinone


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Related to naphthoquinone: naphthalene

naph·tho·quin·one

(naf'thō-kwin'ōn),
1. A quinone derivative of naphthalene, reducible to naphthohydroquinone; 1,4-naphthoquinone derivatives have vitamin K activity (for example, menaquinone).
2. A class of compounds containing the naphthoquinone (1) structure.
References in periodicals archive ?
Aside from 5-methylnaphthoquinone, not found in the sironids, the stylocellid secretion is strongly dominated by ketones and lacks the diversity of naphthoquinones found in sironids.
The antibacterial activity of the natural naphthoquinone products alkannin and shikonin and their derivatives has been investigated (Riffel 2002).
The novolac and the additional photo-active compounds naphthoquinone diazide, 4,4[prime]-bis-azidodiphenyl, and hexamethoxymethyl melamine (Cymel 303) were dissolved in a mixture of ethyl glycol acetate, butyl acetate, and xylene and spin coated onto Si-wafers.
Effects of naphthoquinone on airway responsiveness in the presence or absence of antigen in mice.
1997) evaluated naphthoquinone derivatives that might topically inhibit the penetration of S.
Synthesis of a- and b-pyran naphthoquinones as a new class of antitubercular agents.
Rhinacanthin Q A naphthoquinone from Rhinacanthus nasutus and its biological activity.
It contains many bioactive compounds, such as sugars, vitamins, flavonoids, tannins, terpenoids, steroids, naphthoquinones, dietary fiber, carotenoids, minerals, amino acids, and lipids (Gross, 1987; Mallavadhani et al.
Coura and Castro (2002) reported that several herbal products, such as alkaloids, taxoids, estilbenoids, hormones, propolis, naphthoquinones and crude extracts from plants, have activity against T.