ß-Carotene; (all-E)-1,1'-(3,7,12,16-Tetramethyl-1,3,5,7,9,11,13,15,17-octadecanonaene-1,18-diyl)bis[2,6,6-trimethylcyclohexene]; ß,ß-Carotene; all-trans-ß-Carotene (USP):