4108 Protoanemonin Protoanemonin (sometimes called anemonol or ranunculol) is a toxin found in all plants of the buttercup family (Ranunculaceae). On maceration, for example when the plant is wounded, it is produced by an enzymatic process from the glucoside ranunculin. It is the lactone of 4-hydroxy-2,4-pentadienoic acid. A wounded plant releases the substance, causing itch, rashes or blistering on contact with the skin or mucosa. 108-28-1 66948 C5H4O2 White powder. No indication of carcinogenicity to humans (not listed by IARC). Protoanemonin (sometimes called anemonol or ranunculol) is a toxin found in all plants of the buttercup family (Ranunculaceae). On maceration, for example when the plant is wounded, it is produced by an enzymatic process from the glucoside ranunculin. 2014-08-29T04:58:55Z 2026-05-20T22:33:18Z C07090 28906 true C=C1OC(=O)C=C1 C5H4O2 InChI=1S/C5H4O2/c1-4-2-3-5(6)7-4/h2-3H,1H2 RNYZJZKPGHQTJR-UHFFFAOYSA-N 96.0841 96.021129372 Exogenous Solid HMDB60503 60307 CHEM003014 DTXSID10148346 NS00023496 26.3 26.0101 8.820827817371844 0 1 0 -6.944433090374474 0 1 0.70 -0.19 6.18e+01 g/l