You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule cobalt(2+);3-[4,8,13-tris(2-carboxyethyl)-3,9,14-tris(carboxymethyl)-4,10,14,19,23-pentamethyl-21-oxo-22-oxa-24,26,27-triaza-25-azanidahexacyclo[15.6.1.12,5.17,10.112,15.01,19]heptacosa-2(27),5,7(26),8,12,15,17(24)-heptaen-18-yl]propanoic acid .
user
C45H53CoN4O16+
assistant