User: I have a question about the chemical with SMILES CCCCCCCCCCCCCCCCOC[C@H](COP(=O)([O-])OCC[N+](C)(C)C)OCCCCC(=O)O.
Assistant: Sure, what is your question?
User: How many heavy (non-hydrogen) atoms does this compound have?
Assistant: 39
User: I have a question about the {#molecule|chemical|compound!} with {SMILES__description} {SMILES#}.
Assistant: {#Sure, what is your question?|How can I help?|That sounds interesting, how can I help?|Interesting, how can I help?!}
User: {quest#}
Assistant: {#The answer is |!}{answ#}
CCCCCCCCCCCCCCCCOC[C@H](COP(=O)([O-])OCC[N+](C)(C)C)OCCCCC(=O)O
CCCCCCCCCCCCCCCCOC[C@H](COP(=O)([O-])OCC[N+](C)(C)C)OCCCCC(=O)O
[(2R)-2-(4-carboxybutoxy)-3-hexadecoxypropyl] 2-(trimethylazaniumyl)ethyl phosphate
How many heavy (non-hydrogen) atoms does this compound have?
39