User: I'm looking for the SMILES of a molecule that can be described as:
The molecule is heme b in which the iron has oxidation state +3. It is a heme b and a ferriheme. It is a conjugate acid of a ferriheme b(1-).
Assistant: This is a molecule that fits this description: C=CC1=C(C)c2cc3[n-]c(cc4nc(cc5[n-]c(cc1n2)c(C)c5CCC(=O)O)C(CCC(=O)O)=C4C)c(C)c3C=C.[Fe+3]
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#}
3-[18-(2-carboxyethyl)-7,12-bis(ethenyl)-3,8,13,17-tetramethylporphyrin-21,23-diid-2-yl]propanoic acid;iron(3+)
The molecule is heme b in which the iron has oxidation state +3. It is a heme b and a ferriheme. It is a conjugate acid of a ferriheme b(1-).