The story
- Englishvaleric acid
- Englishvalerate
- English todayvalrubicin
Blend of val(erate) (“ester of valeric acid”) + -rubicin (“daunorubicin derivative”). However, the molecule is in fact a valerate analog of doxorubicin, not daunorubicin. Thus an etymology as val(erate) + (doxo)rubicin is plausible as well. See libfix for information on affixes such as -rubicin.
Etymology from Wiktionary, CC BY-SA 4.0.