You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2R)-2-[[(2S)-2-[[(2S,3R)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[2-[[(2R)-2-amino-3-sulfanylpropanoyl]amino]acetyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]hexanoyl]amino]-3-hydroxypropanoyl]amino]hexanoyl]amino]-3-hydroxybutanoyl]amino]-3-methylbutanoyl]amino]-3-sulfanylpropanoic acid by IUPAC nomenclature, provide its molecular formula.
user
C38H72N14O12S2
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