User: I'm looking for the SMILES of a molecule that can be described as:
The molecule is an ammonium ion that is the conjugate acid of sphingosylphosphocholine, obtained by protonation of the amino group. Major species at pH 7.3. It is an ammonium ion derivative and a sphingoid-1-phosphocholine(1+). It is a conjugate acid of a sphingosine-1-phosphocholine. It is a tautomer of a sphingosylphosphocholine acid.
Assistant: This is a molecule that fits your description: CCCCCCCCCCCCC/C=C/[C@@H](O)[C@@H]([NH3+])COP(=O)([O-])OCC[N+](C)(C)C
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that can be described {#by|as!}:
{description#}
Assistant: This is a molecule that fits {#your|this!} description: {SMILES#}
[(E,2S,3R)-2-azaniumyl-3-hydroxyoctadec-4-enyl] 2-(trimethylazaniumyl)ethyl phosphate
The molecule is an ammonium ion that is the conjugate acid of sphingosylphosphocholine, obtained by protonation of the amino group. Major species at pH 7.3. It is an ammonium ion derivative and a sphingoid-1-phosphocholine(1+). It is a conjugate acid of a sphingosine-1-phosphocholine. It is a tautomer of a sphingosylphosphocholine acid.