different between methylumbelliferone vs umbelliferone

English

methyl +? umbelliferone

methylumbelliferone (plural methylumbelliferones)

(organic chemistry) Any of several methyl derivatives of umbelliferone, but especially 4-methylumbelliferone that is used as the drug hymecromone.

umbelliferone (countable and uncountable, plural umbelliferones)

(chemistry) A yellowish-white natural product of the coumarin family, occurring in such plants as carrot and coriander.

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