Task: Please create a description for a molecule based on its representation.
SMILES: CCCCCCCC/C=C\CCCCCCCCCCCCCC(=O)O[C@H](COC(=O)CCCCCCCCCCCCCCCCC)COP(=O)([O-])OCC[N+](C)(C)C
Constraint: Answer the question with complete sentences.
Result: The molecule is a phosphatidylcholine 42:1 in which the acyl groups specified at positions 1 and 2 are octadecanoyl and (15Z)-tetracosenoyl respectively. It derives from an octadecanoic acid and a (15Z)-tetracosenoic 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#}
[(2R)-3-octadecanoyloxy-2-[(Z)-tetracos-15-enoyl]oxypropyl] 2-(trimethylazaniumyl)ethyl phosphate
The molecule is a phosphatidylcholine 42:1 in which the acyl groups specified at positions 1 and 2 are octadecanoyl and (15Z)-tetracosenoyl respectively. It derives from an octadecanoic acid and a (15Z)-tetracosenoic acid.