Chem. [f. as prec. + -IN.] ‘An acid (C20 H22 O10) discovered by Heeren in Roccella tinctoria; it appears also to be contained in most of the lichens from which archil is prepared’ (Watts, Dict. Chem., 1882).

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1838.  T. Thomson, Chem. Org. Bodies, 385. The erythrin … undergoes a notable change, for it is insoluble in water.

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