Task: Please create a text description for a molecule.
Molecule SMILES: COCCN1C(=O)C=CC1=O
Constraint: Answer the question with complete sentences.
Result: The molecule is a poly(ethylene glycol) derivative that is methoxypoly(ethylene glycol) in which the terminal hydroxy group has been converted to the corresponding 2-maleimidoethyl ether. Used particularly for the mPEGylation of free thiol groups in cysteine residues of proteins. It has a role as a reagent. It is a poly(ethylene glycol) derivative and a member of maleimides.
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#}
COCCN1C(=O)C=CC1=O
1-(2-methoxyethyl)pyrrole-2,5-dione
The molecule is a poly(ethylene glycol) derivative that is methoxypoly(ethylene glycol) in which the terminal hydroxy group has been converted to the corresponding 2-maleimidoethyl ether. Used particularly for the mPEGylation of free thiol groups in cysteine residues of proteins. It has a role as a reagent. It is a poly(ethylene glycol) derivative and a member of maleimides.