You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[[(4S,5S,14R,15R)-19-acetyl-5-[3-[2-[2-[[(2R)-2-[3-[2-[[(4S)-4-[[4-[(2-amino-4-oxo-3H-pteridin-6-yl)methylamino]benzoyl]amino]-4-carboxybutanoyl]amino]ethoxy]propanoylamino]-2-carboxyethyl]disulfanyl]ethoxycarbonyl]hydrazinyl]-3-oxopropyl]-14-ethyl-7-(2-methoxy-2-oxoethyl)-4,10,15,20,22,22-hexamethyl-21,23,24,25-tetrazahexacyclo[9.9.3.13,6.113,16.08,23.018,21]pentacosa-1,3(25),6,8,10,12,16(24),17,19-nonaene-9-carbonyl]amino]-trimethylazanium The above is the IUPAC name of a molecule. Write its molecular formula.
user
C71H90N17O16S2+
assistant