A crystalline aromatic compound, C10H8, with a molecule consisting of two fused six-membered rings and a pungent, tar-like smell, which is obtained…
| 单词 | θ70034 |
| 释义 | the world > matter > chemistry > organic chemistry > chemicals from tar > [noun] (10) naphthalene1821 A crystalline aromatic compound, C10H8, with a molecule consisting of two fused six-membered rings and a pungent, tar-like smell, which is obtained… idryl1845 (a) A mixture of fluoranthene and other hydrocarbons (see quot. 1952) originally obtained from the mercury ores of Idrija, in north-west… picoline1846 Each of three colourless, pungent-smelling, liquid bases, (CH3)C5H4N, that are isomeric methyl derivatives of pyridine and are obtained from coal… fluorene1867 A crystalline tricyclic aromatic hydrocarbon obtained from coal tar and used as a precursor for dyes, pigments, and pharmaceuticals. Also: any… fluoranthene1878 An aromatic hydrocarbon which crystallizes as colourless needles or plates, found in coal tar and as a product of combustion; (also) any… isoquinoline1886 a low-melting, crystalline, bicyclic compound, C9H7N, found in coal tar and forming the nucleus of many alkaloids. indene1888 (a) = indonaphthene, n. (which name indene has completely superseded). (b) Any of the derivatives of this compound. Subcategories:— derivatives (3) |
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