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

The molecule is a lignan with a dibenzocyclooctadiene skeleton isolated from Kadsura interior and has been shown to exhibit anti-HIV activity. It has a role as a metabolite and an anti-HIV agent. It is a lignan, an oxacycle, an aromatic ether, a benzoate ester and an organic heteropentacyclic compound.

SMILES: COc1c2c(cc3c1-c1c(cc4c(c1OC)OCO4)C(OC(=O)c1ccccc1)C(C)C(C)C3)OCO2
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][Branch2][Branch1][#C][C][=O+1][C][=C][C][Branch1][C][O][=C][C][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][Ring2][Ring1][Ring1][C][=C][Ring2][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][C][Branch1][Ring1][O][C][=C][Ring2][Ring2][O][O]

The molecule is an anthocyanin cation that is malvidin carrying two beta-D-glucosyl residues at positions 3 and 5. It has a role as a biological pigment and a metabolite. It is an anthocyanin cation and a beta-D-glucoside. It derives from a malvidin.

SMILES: COc1cc(-c2[o+]c3cc(O)cc(OC4OC(CO)C(O)C(O)C4O)c3cc2OC2OC(CO)C(O)C(O)C2O)cc(OC)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][C][C][C][C][/C][=C][\C][/C][=C][\C][C][O][C][Ring1][Ring1][C][/C][=C][\C][C][C][C][=Branch1][C][=O][S][C][C][N][C][=Branch1][C][=O][C][C][N][C][=Branch1][C][=O][C@H1][Branch1][C][O][C][Branch1][C][C][Branch1][C][C][C][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C@H1][O][C@@H1][Branch1][P][N][C][=N][C][=C][Branch1][C][N][N][=C][N][=C][Ring1][#Branch1][Ring1][#Branch2][C@H1][Branch1][C][O][C@@H1][Ring1][S][O][P][=Branch1][C][=O][Branch1][C][O][O]

The molecule is an unsaturated fatty acyl-CoA that results from the formal condensation of the thiol group of coenzyme A with the carboxy group of 8,9-epoxy-(5Z,11Z,14Z)-icosatrienoic acid. It is a long-chain fatty acyl-CoA and an unsaturated fatty acyl-CoA. It derives from an 8,9-EET. It is a conjugate acid of an 8,9-epoxy-(5Z,11Z,14Z)-icosatrienoyl-CoA(4-).

SMILES: CCCCCC=CCC=CCC1OC1CC=CCCCC(=O)SCCNC(=O)CCNC(=O)C(O)C(C)(C)COP(=O)(O)OP(=O)(O)OCC1OC(n2cnc3c(N)ncnc32)C(O)C1OP(=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][Branch2][Branch2][C][N][C][=C][C][=C][Branch2][#Branch1][Branch1][C][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C][O][C@H1][O][C@H1][Branch2][Branch1][#Branch1][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C@@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][N][C@@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][N][C@@H1][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1][C@@H1][Branch1][C][O][C@H1][Ring2][Ring2][=Branch1][O][C][=C][Ring2][Branch1][=Branch1][C][=C][N][=C][N][=C][Branch1][C][N][NH1][C][=Branch1][C][=O][C][Ring1][Branch2][=N][Ring1][N]

The molecule is the organophosphate oxoanion and tetracarboxylic acid anion formed from tatiopterin by loss of a proton from the phospho group and from each of the four carboxy groups; major microspecies present at pH 7.3. It is an organophosphate oxoanion and a tetracarboxylic acid anion. It is a conjugate base of a tatiopterin.

SMILES: CC(Nc1ccc(CC(O)C(O)C(O)COC2OC(COP(=O)([O-])OC(CCC(=O)[O-])C(=O)NC(CCC(=O)[O-])C(=O)NC(CC(=O)[O-])C(=O)[O-])C(O)C2O)cc1)c1cnc2nc(N)[nH]c(=O)c2n1
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][C][C][=C][C][=C][C][Branch1][C][O][=C][C][Branch1][C][O][=C][Ring1][Branch2][C][=Branch1][C][=O][O][Ring1][=N]

The molecule is a member of the class of isocoumarins that is 1H-isochromen-1-one substituted by a 2-oxopropyl group at position 3 and by hydroxy groups at positions 6 and 8. It has a role as an Aspergillus metabolite. It is a hexaketide, a member of isocoumarins, a methyl ketone and a member of phenols.

SMILES: CC(=O)Cc1cc2cc(O)cc(O)c2c(=O)o1
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>

[Cl][C][=C][C][Branch1][C][Cl][C][Branch1][C][Cl][=C][C][Ring1][Branch2][Cl]

The molecule is a chloroolefin that is cyclohexa-1,4-diene substituted by chloro groups at positions 1, 3, 4 and 6. It is a chloroolefin and a cyclohexadiene. It derives from a hydride of a cyclohexa-1,4-diene.

SMILES: ClC1=CC(Cl)C(Cl)=CC1Cl
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][C][Branch1][C][O][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1].[Li+1].[Li+1].[Li+1]

The molecule is a lithium salt that is the anhydrous form of the trilithium salt of citric acid. The tetrahydrate form is used as a source of lithium for the treatment of anxiety disorders, bipolar disorder, and depression. It contains a citrate(3-).

SMILES: O=C([O-])CC(O)(CC(=O)[O-])C(=O)[O-].[Li+].[Li+].[Li+]
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][Branch2][Ring1][S][/C][=C][Branch1][=Branch1][/C][=Branch1][C][=O][O][C][=C][C][Branch1][Branch2][/C][=C][/C][=Branch1][C][=O][O][=C][C][Branch1][Ring1][O][C][=C][Ring1][=N][O][=C][C][=C][Ring2][Ring1][=Branch2][O]

The molecule is a polyphenol composed of two molecules of ferulic acid joined by a bond between positions 8 and 5'. It has a role as a plant metabolite and an Aspergillus metabolite. It is a polyphenol, a member of methoxybenzenes, a dicarboxylic acid and an olefinic compound. It derives from a ferulic acid.

SMILES: COc1cc(C=C(C(=O)O)c2cc(C=CC(=O)O)cc(OC)c2O)ccc1O
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][/C][=C][\C][/C][=C][\C][/C][=C][\C][/C][=C][\C][/C][=C][\C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O]

The molecule is an omega-3 fatty acid that is tetratriacontahexaenoic acid having six double bonds located at positions 16, 19, 22, 25 ,28 and 31 (the 16Z,19Z,22Z,25Z,28Z,31Z-isomer). It is an omega-3 fatty acid, a tetratriacontahexaenoic acid and an ultra-long-chain fatty acid. It is a conjugate acid of a (16Z,19Z,22Z,25Z,28Z,31Z)-tetratriacontahexaenoate.

SMILES: CCC=CCC=CCC=CCC=CCC=CCC=CCCCCCCCCCCCCCCC(=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>

[N][C][=Branch1][C][=O][C][C@H1][Branch1][S][N][C][=Branch1][C][=O][C@@H1][Branch1][C][N][C][C][Branch1][C][N][=O][C][=Branch1][C][=O][N][C][C][C][C@H1][Ring1][Branch1][C][=Branch1][C][=O][N][C@@H1][Branch1][Ring1][C][O][C][=Branch1][C][=O][O]

The molecule is a tetrapeptide composed of two L-asparagine units, L-proline and L-serine joined in sequence by peptide linkages. It has a role as a metabolite. It derives from a L-asparagine, a L-proline and a L-serine.

SMILES: NC(=O)CC(N)C(=O)NC(CC(N)=O)C(=O)N1CCCC1C(=O)NC(CO)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][Branch2][Branch1][=Branch2][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][C@H1][C@H1][Branch1][C][O][C][C@@][Branch1][C][C][C][=C][C][C@H1][C][Branch1][C][C][Branch1][C][C][C@H1][Branch1][C][O][C][C][C@][Ring1][=Branch2][Branch1][C][C][C][Ring1][=C][=C][C][C@][Ring2][Ring1][#Branch1][Ring2][Ring1][Ring1][C][C][Branch1][C][C][Branch1][C][C][O]

The molecule is a tetracyclic triterpenoid that is lanosta-7,9(11)-dien-21-oic acid substituted by hydroxy groups at positions 3, 16 and 25 and a methylidene group at position 24. It has been isolated from Poria cocos. It has a role as a fungal metabolite. It is a monocarboxylic acid, a secondary alcohol, a tertiary alcohol and a tetracyclic triterpenoid. It derives from a hydride of a lanostane.

SMILES: C=C(CCC(C(=O)O)C1C(O)CC2(C)C3=CCC4C(C)(CCC(O)C4(C)C)C3=CCC12C)C(C)(C)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][C][C][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O][C@H1][C][C][C@H1][C@@H1][C][C][C@@H1][C][C@H1][Branch1][#Branch2][O][S][=Branch1][C][=O][=Branch1][C][=O][O][C][C][C@][Ring1][O][Branch1][C][C][C@H1][Ring1][S][C][C@H1][Branch1][C][O][C@][Ring2][Ring1][Branch2][Ring2][Ring1][Branch1][C]

The molecule is a bile acid glycine conjugate that is glycodeoxycholic acid in which the hydroxy hydrogen at position 3 has been replaced by a sulfo group. It is a bile acid glycine conjugate, a 12alpha-hydroxy steroid and a steroid sulfate. It derives from a glycodeoxycholic acid.

SMILES: CC(CCC(=O)NCC(=O)O)C1CCC2C3CCC4CC(OS(=O)(=O)O)CCC4(C)C3CC(O)C12C
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][Branch2][Ring1][C][N][C][=C][C][Branch1][C][O][=C][C][=C][Ring1][#Branch1][C][=Branch1][C][=O][O][C][=C][C][=C][C][=C][Ring1][=Branch1]

The molecule is the N-benzoyl-4-hydroxy derivative of anthranilic acid. It derives from an anthranilic acid. It is a conjugate acid of a N-benzoyl-4-hydroxyanthranilate.

SMILES: O=C(Nc1cc(O)ccc1C(=O)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@][Branch2][Ring1][#Branch1][C][C][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][C][C@H1][C][=Branch2][Ring1][Branch2][=C][C][C@@H1][C@][Ring1][=Branch1][Branch1][C][C][C][C][C][C@][Ring1][#Branch1][Branch1][C][C][C][=Branch1][C][=O][O][C][Ring2][Ring1][P]

The molecule is a diterpene glycoside that is isopimar-7-en-19-oic acid attached to a alpha-D-mannopyranosyloxy residue at position 16. It has been isolated from the fungus, Xylaria species. It has a role as a fungal metabolite. It is a diterpenoid, a monosaccharide derivative, a monocarboxylic acid and a diterpene glycoside. It derives from an alpha-D-mannose. It derives from a hydride of an isopimarane.

SMILES: CC1(CCOC2OC(CO)C(O)C(O)C2O)CCC2C(=CCC3C(C)(C(=O)O)CCCC23C)C1
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][C][C][=Branch1][C][=O][N][C][=Branch1][C][=S][N][Ring1][Branch2]

The molecule is a barbiturate, the structure of which is that of barbituric acid in which the oxygen at C-2 is replaced by sulfur. It has a role as a reagent and an allergen.

SMILES: O=C1CC(=O)NC(=S)N1
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][#Branch1][=C][\C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]

The molecule is a dicarboxylic acid dianion that is the conjugate base of mesaconic acid. It has a role as a human metabolite and a plant metabolite. It derives from a fumarate(2-). It is a conjugate base of a mesaconic acid.

SMILES: CC(=CC(=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][O][C][=C][C][=C][Branch2][Ring1][Branch2][C][C][N][Branch1][C][C][C][C][=C][C][=C][Branch1][Ring1][O][C][C][Branch1][Ring1][O][C][=C][Ring1][#Branch2][C][=C][Ring2][Ring1][Branch1]

The molecule is a phenethylamine alkaloid that is N-methyl-4-methoxyphenylethylamine carrying an additional N-(3,4-dimethoxybenzyl) substituent. It has a role as an EC 3.1.1.7 (acetylcholinesterase) inhibitor, an EC 3.1.1.8 (cholinesterase) inhibitor and a plant metabolite. It is a phenethylamine alkaloid, a dimethoxybenzene, a monomethoxybenzene and a tertiary amino compound.

SMILES: COc1ccc(CCN(C)Cc2ccc(OC)c(OC)c2)cc1