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Under IUPAC nomenclature, a molecule named (4S)-4-[[(2S)-2-amino-3-phenylpropanoyl]amino]-5-[[(2S,3R)-1-[[(2S,3R)-1-[[(2S)-1-[[(2S)-4-carboxy-1-[[(2S)-1-[[2-[[(2S)-1-(carboxymethylamino)-3-hydroxy-1-oxopropan-2-yl]amino]-2-oxoethyl]amino]-5-(diaminomethylideneamino)-1-oxopentan-2-yl]amino]-1-oxobutan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-5-oxopentanoic acid is given. What is its corresponding molecular formula?
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C43H67N13O19
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