guojianz/MolReasoner huggingface dataset:
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][O][C][=C][Branch1][C][O][C][Branch1][C][C][=C][Branch2][Ring1][#Branch1][C][/C][=C][Branch1][C][\C][C][C][C][C][C][C][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][Ring2][Ring1][#Branch2][=O]

The molecule is a member of the class of 2-pyranones that is 2H-pyran-2-one substituted by a methoxy group at position 3, a hydroxy group at position 4, a methyl group at position 5 and a (2E)-3-methyl-11-phenylundec-2-en-1-yl group at position 6. Isolated from the marine sponge of the genus Plakortis, it exhibits cytotoxicity against human promyeloid leukemic HL-60 cells. It has a role as an antineoplastic agent and an animal metabolite. It is a member of 2-pyranones, an ether and a polyketide.

SMILES: COc1c(O)c(C)c(CC=C(C)CCCCCCCCc2ccccc2)oc1=O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[O][=C][Branch1][C][O][C][C][C][=C][Branch1][N][NH1][C][=C][C][=C][C][=C][Ring1][=Branch2][Ring1][=Branch1][C][N][Ring1][=N]

The molecule is a member of the class of beta-carbolines that is 1,2,3,4-tetrahydro-beta-carboline substituted at position 3 by a carboxy group. It has a role as a plant metabolite, a rat metabolite, a human urinary metabolite and a human xenobiotic metabolite. It is a beta-carboline alkaloid, an aromatic amino acid and an alpha-amino acid.

SMILES: O=C(O)C1Cc2c([nH]c3ccccc23)CN1
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C@@H1][O][C@@H1][Branch2][Branch1][=Branch1][O][C@H1][C][C][C@][Branch1][Ring1][C][=O][C@H1][C][C][C@][Branch1][C][C][C@@H1][Branch1][O][C][=C][C][=Branch1][C][=O][O][C][Ring1][=Branch1][C][C][C@][Ring1][N][Branch1][C][O][C@@H1][Ring1][P][C][C][C@][Ring2][Ring1][#Branch1][Branch1][C][O][C][Ring2][Ring1][N][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring2][Ring2][Branch1][O]

The molecule is a cardenolide glycoside that consists of strophanthidin having a 6-deoxy-alpha-L-mannopyranosyl (L-rhamnosyl) group attached at position 3. It has a role as a vasodilator agent and a metabolite. It is an alpha-L-rhamnoside, a 19-oxo steroid, a 14beta-hydroxy steroid, a 5beta-hydroxy steroid, a steroid lactone and a steroid aldehyde. It derives from a strophanthidin.

SMILES: CC1OC(OC2CCC3(C=O)C4CCC5(C)C(C6=CC(=O)OC6)CCC5(O)C4CCC3(O)C2)C(O)C(O)C1O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][O][C@@H1][C@@H1][Branch1][C][O][C@H1][Branch2][#Branch2][=Branch2][O][C@@H1][C@@H1][Branch1][C][O][C@H1][Branch2][=Branch2][Ring2][O][C@H1][C@H1][Branch1][C][O][C@@H1][Branch1][C][O][C@H1][Branch2][#Branch1][S][O][C@H1][C@H1][Branch2][=Branch1][#Branch1][O][C@H1][C][C][C@][Branch1][C][C][C][=C][C@H1][Branch1][C][O][C][C][=Branch1][C][=O][O][C@@][Branch1][C][C][Branch1][N][C][C][C][Branch1][C][O][C][Branch1][C][C][C][C@@][Ring1][=C][Branch1][C][O][C][C][C@@][Ring2][Ring1][C][Branch1][C][C][C@@H1][Ring2][Ring1][Branch2][C][C][C@H1][Ring2][Ring1][=N][C][Ring2][Ring1][P][Branch1][C][C][C][O][C][C@@H1][Branch1][#Branch2][O][S][=Branch1][C][=O][=Branch1][C][=O][O-1][C@@H1][Ring2][Ring2][#C][O][O][C@@H1][Ring2][Branch1][=Branch2][C][O][C@H1][Branch1][Ring1][C][O][C@H1][Ring2][=Branch1][Ring2][O][O][C@H1][Branch1][Ring1][C][O][C@H1][Ring2][=Branch1][#C][O].[Na+1]

The molecule is an organic sodium salt that is a monosodium salt of holothurin A4 acid. Isolated from Holothuria scabra, it exhibits cytotoxic activity against human carcinoma cells. It has a role as a metabolite and an antineoplastic agent. It contains a holothurin A4(1-).

SMILES: COC1C(O)C(CO)OC(OC2C(O)C(CO)OC(OC3C(C)OC(OC4C(OC5CCC6(C)C7=CC(O)C89C(=O)OC(C)(CCC(O)C(C)C)C8(O)CCC9(C)C7CCC6C5(C)C)OCC(OS(=O)(=O)[O-])C4O)C(O)C3O)C2O)C1O.[Na+]
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[N][C][Branch1][C][O][C][=Branch1][C][=O][O]

The molecule is a hydroxy-amino acid that is glycine substituted by a hydroxy group at the alpha-position. It is a hydroxy-amino acid, a glycine derivative and a hemiaminal.

SMILES: NC(O)C(=O)O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[O][=C][Branch1][C][O-1][C][=Branch1][C][=O][C@@H1][Branch1][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1]

The molecule is a 2-oxo monocarboxylic acid anion that is the conjugate base of (S)-3-hydroxy-2-oxo-3-phenylpropanoic acid, obtained by deprotonation of the carboxy group. It is a 2-oxo monocarboxylic acid anion and a hydroxy monocarboxylic acid anion. It is a conjugate base of a (S)-3-hydroxy-2-oxo-3-phenylpropanoic acid.

SMILES: O=C([O-])C(=O)C(O)c1ccccc1
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C@@H1][O][C@@H1][Branch2][Ring2][#Branch2][O][C@@H1][C@@H1][Branch1][C][O][C@H1][Branch2][Ring1][Branch1][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring1][#Branch2][O][C@@H1][Branch1][Ring1][C][O][O][C@@H1][Ring2][Ring1][Branch1][O][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@@H1][Ring2][Ring1][#C][O]

The molecule is a branched trisaccharide that is alpha-lactose in which the hydroxy group at position 2 of the glucopyranose moiety has been glycosylated by an alpha-L-fucopyranosyl group. It derives from an alpha-lactose and an alpha-L-fucose.

SMILES: CC1OC(OC2C(O)OC(CO)C(OC3OC(CO)C(O)C(O)C3O)C2O)C(O)C(O)C1O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][I]

The molecule is an organoiodine compound that is iodobenzene substituted by methoxy group at psotion 2. It is an aromatic ether and an organoiodine compound.

SMILES: COc1ccccc1I
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][O][C][=C][C][Branch1][C][O][=C][C][=Branch1][C][=O][C][Branch1][Ring1][O][C][=C][Branch2][Ring1][Ring2][C][=C][C][Branch1][C][O][=C][Branch1][Ring1][O][C][C][Branch1][Ring1][O][C][=C][Ring1][O][O][C][Ring2][Ring1][Ring2][=C][Ring2][Ring1][=Branch2]

The molecule is a tetramethoxyflavone that is myricetin in which the hydroxy groups at positions 3, 7, 4' and 5' have been replaced by methoxy groups. It has been isolated from Combretum quadrangulare. It has a role as a metabolite and a plant metabolite. It is a tetramethoxyflavone and a dihydroxyflavone. It derives from a myricetin.

SMILES: COc1cc(O)c2c(=O)c(OC)c(-c3cc(O)c(OC)c(OC)c3)oc2c1
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C][Branch1][C][N][C][=Branch1][C][=O][C][C][C][C][C][C][=Branch1][C][=O][O-1]

The molecule is a 7-oxo monocarboxylic acid anion. It derives from a nonanoate. It is a conjugate base of an 8-amino-7-oxononanoic acid.

SMILES: CC(N)C(=O)CCCCCC(=O)[O-]
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C][=Branch1][C][=O][O][C][C][C@H1][C][=C][Branch2][Ring1][S][C][=C][C][=Branch1][Branch1][=C][Ring1][=Branch1][O][C][=Branch1][C][=O][C][=C][Branch1][C][O][C][=C][Branch1][C][O][C][=C][Ring1][Branch2][C][Ring1][#C][=O][O][C@@H1][Ring2][Ring1][=Branch1][O]

The molecule is an optically active form of versiconal hemiacetal acetate having 2S,3S-configuration. It is a conjugate acid of a (2S,3S)-versiconal hemiacetal acetate(1-).

SMILES: CC(=O)OCCC1c2c(cc3c(c2O)C(=O)c2c(O)cc(O)cc2C3=O)OC1O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C][=C][N][Branch2][Branch1][#Branch1][C@H1][C][C@H1][Branch1][C][O][C@@H1][Branch2][Ring2][=Branch2][C][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O][C@H1][O][C@H1][Branch1][C][C][C@H1][Branch1][C][O][C@H1][Branch1][=Branch1][N][Branch1][C][C][C][C@H1][Ring1][O][O][O][Ring2][Ring1][N][C][=Branch1][C][=O][NH1][C][Ring2][Ring2][Ring1][=O]

The molecule is a dTDP-sugar having D-ravidosamine as the sugar component. It derives from a D-ravidosamine. It is a conjugate acid of a dTDP-D-ravidosamine(1-).

SMILES: Cc1cn(C2CC(O)C(COP(=O)(O)OP(=O)(O)OC3OC(C)C(O)C(N(C)C)C3O)O2)c(=O)[nH]c1=O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C][NH1][C][=N][C][=C][Branch2][Ring1][=N][N][=C][N][Ring1][Branch1][C@@H1][O][C@H1][Branch1][O][C][O][P][=Branch1][C][=O][Branch1][C][O][O][C@@H1][Branch1][C][O][C@H1][Ring1][N][O][C][=Branch1][C][=O][N][Ring2][Ring1][#Branch1][C][=Ring2][Ring1][#Branch2][C][C][C@H1][Branch1][C][N][C][=Branch1][C][=O][O]

The molecule is a ribonucleoside 5'-monophosphate having (2S)-2-amino-4-(6-methyl-9-oxo-4,9-dihydro-3H-imidazo[1,2-a]purin-7-yl)butanoic acid as the nucleobase. It derives from a guanosine. It is a tautomer of a 4-demethyl-7-(3-amino-3-carboxypropyl)wyosine 5'-monophosphate zwitterion.

SMILES: Cc1[nH]c2nc3c(ncn3C3OC(COP(=O)(O)O)C(O)C3O)c(=O)n2c1CCC(N)C(=O)O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][Si][Branch1][C][C][Branch1][C][C][C][C][C][S][=Branch1][C][=O][=Branch1][C][=O][O]

The molecule is an alkanesulfonic acid that is propanesulfonic acid substituted at position 3 by a trimethylsilyl group. It is an organosilicon compound and an alkanesulfonic acid.

SMILES: C[Si](C)(C)CCCS(=O)(=O)O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C@@H1][Branch1][C][O][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C@@H1][Branch1][C][O][C][C][=Branch1][C][=O][O]

The molecule is a dihydroxy monocarboxylic acid that is tricosanoic acid in which the pro-R hydrogens at positions 3 and 22 are replaced by hydroxy groups. It is a very long-chain fatty acid, an (omega-1)-hydroxy fatty acid, a 3-hydroxy carboxylic acid and a dihydroxy monocarboxylic acid. It derives from a tricosanoic acid.

SMILES: CC(O)CCCCCCCCCCCCCCCCCCC(O)CC(=O)O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[NH3+1][C@@H1][Branch2][Ring1][=Branch2][C][C][NH2+1][C@@H1][Branch1][=C][C][C][NH1+1][C][C][C@H1][Ring1][Ring2][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]

The molecule is an amino acid zwitterion resulting from transfer of three protons from the carboxy to the amino groups of (S,S,S)-nicotianamine. One of two major microspecies at physiological pH. It has a role as a plant metabolite. It is a tautomer of a (S,S,S)-nicotianamine.

SMILES: [NH3+]C(CC[NH2+]C(CC[NH+]1CCC1C(=O)[O-])C(=O)[O-])C(=O)[O-]
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][C@][C][=C][C][=Branch1][C][=O][C][=C][Ring1][#Branch1][C][=C][C@@H1][C@@H1][Ring1][O][C][C][C@][Branch1][C][C][C][=Branch1][C][=O][C][C][C@@H1][Ring1][O][Ring1][#Branch1]

The molecule is an androstanoid that is androsta-1,4,6-triene substituted by oxo groups at positions 3 and 17. It has a role as an EC 1.14.14.14 (aromatase) inhibitor and a human xenobiotic metabolite. It is a 17-oxo steroid, an androstanoid and a 3-oxo-Delta(1),Delta(4)-steroid.

SMILES: CC12C=CC(=O)C=C1C=CC1C2CCC2(C)C(=O)CCC12
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

Please provide a step-by-step analysis explaining how you interpret the molecular structure, identify key features and functional groups, and summarize it into a clear and informative description.

Think step by step, and your final answer **must** be returned in the format: <answer> ... </answer>. For example:
<answer>The molecule is an epoxy(hydroxy)icosatrienoate that is the conjugate base of 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of an 11-hydroxy-(14R,15S)-epoxy-(5Z,8Z,12E)-icosatrienoic acid.</answer>

[C][O][C][=C][Branch1][Branch2][C][C][=C][Branch1][C][C][C][C][Branch1][C][O][=C][C][=C][Ring1][N][C@@H1][O][C][=C][C][Branch1][C][O][=C][Branch1][Branch2][C][C][=C][Branch1][C][C][C][C][=C][Ring1][N][C@@H1][Ring1][#C][C][O][Ring2][Ring1][Ring1]

The molecule is a member of the class of pterocarpans that is (6aR,11aR)-pterocarpan substituted by hydroxy groups at positions 3 and 9, a methoxy group at position 1 and a prenyl groups at positions 2 and 8. It has been isolated from Glycyrrhiza uralensis. It has a role as a plant metabolite. It is an aromatic ether, a polyphenol and a member of pterocarpans. It derives from a (6aR,11aR)-pterocarpan.

SMILES: COc1c(CC=C(C)C)c(O)cc2c1C1Oc3cc(O)c(CC=C(C)C)cc3C1CO2