Task: Please create a description for a molecule based on its representation.
SMILES: CCCCCCCCCCCCCCCC(=O)N[C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@H](O)/C=C/CCCCCCCCCC(C)C
Constraint: Answer the question with full sentences.
Result: The molecule is a sphingomyelin 33:1 obtained by formal condensation of the carboxy group of hexadecanoic acid with the amino group of 15-methylhexadecasphingosine-1-phosphocholine. It is a metabolite of the nematode Caenorhabditis elegans. It has a role as a Caenorhabditis elegans metabolite. It derives from a 15-methylhexadecasphing-4-enine and a hexadecanoic acid.
Task: Please create a {#text |!}description for a molecule{# based on its representation|!}.
{#Molecule |!}{SMILES__description}: {SMILES#}
Constraint: Answer the question with {#full|complete!} sentences.
Result: {description#}
CCCCCCCCCCCCCCCC(=O)N[C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@H](O)/C=C/CCCCCCCCCC(C)C
CCCCCCCCCCCCCCCC(=O)N[C@@H](COP(=O)([O-])OCC[N+](C)(C)C)[C@@H](/C=C/CCCCCCCCCC(C)C)O
[(E,2S,3R)-2-(hexadecanoylamino)-3-hydroxy-15-methylhexadec-4-enyl] 2-(trimethylazaniumyl)ethyl phosphate
The molecule is a sphingomyelin 33:1 obtained by formal condensation of the carboxy group of hexadecanoic acid with the amino group of 15-methylhexadecasphingosine-1-phosphocholine. It is a metabolite of the nematode Caenorhabditis elegans. It has a role as a Caenorhabditis elegans metabolite. It derives from a 15-methylhexadecasphing-4-enine and a hexadecanoic acid.