释义 |
galleinenUK
gallein (ˈɡælɪɪn) n (Chemistry) chem a brown or green dye, used to colour textiles and as a pH indicatorgalleinenUK
gallein[′gal·ē·ən] (organic chemistry) C20H10O7 A brown powder or green scales, broken down by heat; used as a pH indicator in the analysis of phosphates in urine and as an intermediate in the manufacture of dyes. Also known as anthracene violet; gallin; pyrogallolphthalein. galleinenUK
gal·le·in (gal'ē-in), Structurally related to fluorescein and used as an aniline dye indicator, turning rose red above pH 6.6, yellowish brown below pH 4. Synonym(s): pyrogallolphthalein |