Task: Please create a description for a molecule.
Molecule SMILES: C=CC1=C(C)c2cc3[nH]c(c4c5[nH]c(cc6nc(cc1n2)C(C)=C6CC)c(C)c5C([O-])=C4C(=O)OC)[C@@H](CCC(=O)OC/C=C(\C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@@H]3C
Constraint: Answer the question with complete sentences.
Result: The molecule is a cyclic tetrapyrrole anion that is the carbanion obtained by removal of the acidic proton from position 21 of pheophytin a. Major species at pH 7.3 It is a conjugate base of a pheophytin a.
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#}
C=CC1=C(C)c2cc3[nH]c(c4c5[nH]c(cc6nc(cc1n2)C(C)=C6CC)c(C)c5C([O-])=C4C(=O)OC)[C@@H](CCC(=O)OC/C=C(\C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@@H]3C
(21S,22S)-16-ethenyl-11-ethyl-3-methoxycarbonyl-12,17,21,26-tetramethyl-22-[3-oxo-3-[(E,7R,11R)-3,7,11,15-tetramethylhexadec-2-enoxy]propyl]-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1,3,5,8(26),9,11,13(25),14,16,18(24),19-undecaen-4-olate
The molecule is a cyclic tetrapyrrole anion that is the carbanion obtained by removal of the acidic proton from position 21 of pheophytin a. Major species at pH 7.3 It is a conjugate base of a pheophytin a.