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Douglas Harper's Etymology Dictionary
pantothenic

denoting a B-complex vitamin acid, 1933, from Greek pantothen "from all quarters, on every side," from panto-, comb. form of pantos, genitive of pan "all" (see pan-) + -ic. So called because it was found in so many sources.

Wiktionary
pantothenic

a. Of or pertaining to pantothenic acid or its derivatives

WordNet
Wikipedia

Usage examples of "pantothenic".

Potter swung his attention to the priority rack beside him, checked the presentation - in the first row the pyrimidines, nucleic acids and proteins, then aneurin, riboflavin, pyridoxin, pantothenic acid, folic acid, choline, inositol, sulfhydryl.

Mottled yellow in the skin - most probably an immune reaction to pantothenic acid and a failure of adrenalin suppression.