绿藻 · 类胡萝卜素C18H26O2274.1933(3E,5E,7E)-8-[(1R,4R)-4-hydroxy-2,6,6-trimethylcyclohex-2-en-1-yl]-6-methylocta-3,5,7-trien-2-oneChaetomorpha basiretrorsaCOCONUT