e/Erythrolitmin

Information
has gloss	eng: Erythrolitmin (also called erythrolein) is the active ingredient extracted from the Litmus lichen, used in chemistry as a pH indicator. The erythrolitmin molecule is related to the orceins, and consists essentially of several phenoxazone and orcinol residues.
lexicalization	eng: Erythrolitmin
instance of	e/PH indicator

Meaning
Chinese
has gloss	zho: 石蕊是一种蓝色色素，常用作酸碱指示剂（pH指示劑）。
lexicalization	zho: 石蕊

Media
media:img	Lackmus.jpg