Task: Please create a SMILES based on the text description below.
Description: The molecule is a cationic sphingoid that is the conjugate acid of C20 sphingosine, obtained by protonation of the primary amino function; major species at pH 7.3. It is a conjugate acid of a C20 sphingosine.
Result: CCCCCCCCCCCCCCC/C=C/[C@@H](O)[C@@H]([NH3+])CO
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
[(E,2S,3R)-1,3-dihydroxyicos-4-en-2-yl]azanium
The molecule is a cationic sphingoid that is the conjugate acid of C20 sphingosine, obtained by protonation of the primary amino function; major species at pH 7.3. It is a conjugate acid of a C20 sphingosine.