gallacetophenonen.
/ɡəˌlasɪtəʊfɪˈnəʊn//ˌɡaləsiːtəʊˈfiːnəʊn/ Chemistry.
A yellow crystalline compound, C6H2(OH)3COCH3, formerly used in ointments for skin-diseases and as a mordant dye-stuff.
ΚΠ
1881 Jrnl. Chem. Soc. 40 811 Gallacetophenone is obtained on heating pyrogallol with glacial acetic acid and zinc chloride at 145°.
1893 E. Knecht et al. Man. Dyeing II. vii. 628 Alizarin-yellow C or gallacetophenone is produced by the action of glacial acetic acid and chloride of zinc on pyrogallol.
1904 H. W. Stelwagon Treat. Dis. Skin (ed. 3) iii. 238 Gallacetophenone is likewise employed in this disease [sc. psoriasis], in the form of an ointment.
1952 K. Venkataraman Chem. Synthetic Dyes II. xxvi. 796 Alizarin Yellow C.., one of the earliest synthetic mordant dyes, was gallacetophenone.
This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2018).
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