Task: Please create a text description for a molecule based on its representation.
Molecule SMILES: C=CCCCCCCCCCCCCCCCC(C)C
Constraint: Answer the question with complete sentences.
Result: The molecule is a branched C20 alkene consisting of a 19-carbon chain with a double bond between C-1 and C-2 and a methyl group at C-18.
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#}
18-methylnonadec-1-ene
The molecule is a branched C20 alkene consisting of a 19-carbon chain with a double bond between C-1 and C-2 and a methyl group at C-18.