英语词汇“θ17923”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

单词	θ17923
释义	the world > life > biology > substance > pigment > [noun] > unspecified pigments > purple (3) porphyrin1910 Any of a large class of deep-red or purple fluorescent crystalline pigments that are substituted derivatives of porphin, many of which occur widely… protoporphyrin1925 Any of a group of fifteen isomeric porphyrins having the formula C34H34N4O4, in which the porphin nucleus has four methyl, two vinyl, and two… porphin1926 A purple crystalline solid, C20H14N4, which has a macrocyclic aromatic molecule consisting of four pyrrole rings linked by —CH= groups, and of which…
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