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What is the molecular formula of the molecule identified by (5Z,8Z,11Z,14Z,17Z,20Z,23Z)-N-[(E)-1-[3,4-dihydroxy-6-(hydroxymethyl)-5-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-3-hydroxydodec-4-en-2-yl]hexacosa-5,8,11,14,17,20,23-heptaenamide ?
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C50H81NO13
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