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

The molecule is a pentacyclic triterpenoid isolated from Kadsura philippinensis, and has been shown to exhibit anti-HBV activity. It has a role as a metabolite and an anti-HBV agent. It is a pentacyclic triterpenoid, a terpene lactone, a delta-lactone and a tertiary alcohol.

SMILES: CC1=CCC(C(C)(O)C2CCC3(C)C4CCC5C(C)(C)OC(=O)C=CC56CC46CCC23C)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>

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

The molecule is a heteropentacyclic compound found in Euphorbia poissonii with molecular formula C36H38O8. It is an agonist of the transient receptor potential cation channel subfamily V member 1 (TrpV1). It has a role as a plant metabolite, a neurotoxin and a TRPV1 agonist. It is a diterpenoid, an ortho ester, an organic heteropentacyclic compound, an enone, a member of phenols, a carboxylic ester and a tertiary alpha-hydroxy ketone.

SMILES: C=C(C)C12CC(C)C34OC(Cc5ccccc5)(OC1C3C=C(COC(=O)Cc1ccc(O)cc1)CC1(O)C(=O)C(C)=CC14)O2
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][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]

The molecule is a triterpenoid saponin that is a tetrasaccharide derivative of 3,12,17,24-tetrahydroxy-18,20-epoxylanost-9(11)-en-18-one. It is a heterocyclyl sulfate, a tetrasaccharide derivative and a triterpenoid saponin. It is a conjugate acid of a holothurin A4(1-). It derives from a hydride of a lanostane.

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

The molecule is a siderophore composed from L-2,3-diaminopropionic acid, citric acid, 1,2-diaminoethane and alpha-ketoglutaric acid units. It has a role as a siderophore and a bacterial metabolite. It is a tertiary alcohol, a tricarboxylic acid amide, an oxo carboxylic acid and a tricarboxylic acid. It derives from a citric acid. It is a conjugate acid of a staphyloferrin B(2-).

SMILES: NC(CNC(=O)CC(O)(CC(=O)NCCNC(=O)CCC(=O)C(=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>

[O].[O].[CH2-1][C][=Branch1][C][=O][C][Branch1][C][CH2-1][C].[CH2-1][C][=Branch1][C][=O][C][Branch1][C][CH2-1][C].[NH4+1].[NH4+1].[Ti+2]

The molecule is a bisammonium salt of a titanium coordination entity in which the titanium central atom is coordinated to two 2-methyl-3-oxobutane-1,4-diyl bidentate ligands and two hydroxy groups. It is a titanium coordination entity and an ammonium salt.

SMILES: O.O.[CH2-]C(=O)C([CH2-])C.[CH2-]C(=O)C([CH2-])C.[NH4+].[NH4+].[Ti+2]
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].[O].[O].[O].[O].[O].[O].[O][=As][Branch1][C][O-1][Branch1][C][O-1][O].[Na+1].[Na+1]

The molecule is a hydrate that is the heptahydrate form of disodium hydrogen arsenate. It has a role as a poison. It contains a disodium hydrogenarsenate.

SMILES: O.O.O.O.O.O.O.O=[As]([O-])([O-])O.[Na+].[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>

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

The molecule is a trihydroxyflavanone that is flavanone substituted by hydroxy groups at positions 5, 7 and 4' and prenyl groups at positions 3' and 5' respectively. It has a role as a metabolite. It is a member of phenols, a trihydroxyflavanone and a member of 4'-hydroxyflavanones.

SMILES: CC(C)=CCc1cc(C2CC(=O)c3c(O)cc(O)cc3O2)cc(CC=C(C)C)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][=Branch1][C][=O][C][Branch1][C][C][=O]

The molecule is an alpha-diketone that is butane substituted by oxo groups at positions 2 and 3. It is a metabolite produced during the malolactic fermentation. It has a role as a Saccharomyces cerevisiae metabolite and an Escherichia coli metabolite.

SMILES: CC(=O)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][=Branch2][=Branch1][O][=C][\C][=Branch1][C][=O][N][Branch1][C][O-1][C][C][C][C@@H1][N][C][=Branch1][C][=O][C@H1][Branch2][Ring2][#C][C][C][C][N][Branch1][C][O-1][C][=Branch1][C][=O][/C][=C][Branch1][C][\C][C][C][O][C][=Branch1][C][=O][C@@H1][Branch1][C][N][C][C][C][N][Branch1][C][O-1][C][=Branch1][C][=O][/C][=C][Branch1][C][\C][C][C][O][N][C][Ring2][Ring2][Branch1][=O][C][C][O].[Fe+3]

The molecule is an Fe(III)-complexed hydroxamate siderophore with formula C33H51FeN6O12 that is secreted by several fungi and bacteria. It is a Fe(III)-complexed hydroxamate siderophore and a homoallylic alcohol. It contains a desferricoprogen B(3-).

SMILES: CC(=CC(=O)N([O-])CCCC(N)C(=O)OCCC(C)=CC(=O)N([O-])CCCC1NC(=O)C(CCCN([O-])C(=O)C=C(C)CCO)NC1=O)CCO.[Fe+3]
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][Ring1][O][C][=N][C][Branch2][Ring2][C][N][C][=Branch1][C][=O][N][S][=Branch1][C][=O][=Branch1][C][=O][C][=C][Branch1][O][C][N][=N][N][Branch1][C][C][N][=Ring1][=Branch1][C][=N][N][Ring1][O][C][=N][Ring2][Ring1][O]

The molecule is an N-sulfonylurea that is urea in which a nitrogen attached to one of the nitrogens has been replaced by a 4,6-dipyrimidin-2-yl group while a hydrogen attached to the other urea nitrogen has been replaced by a [1-methyl-4-(2-methyl-2H-tetrazol-5-yl)-1H-pyrazol-5-yl]sulfonyl group. An acetolactate synthase inhibitor, it is used as a herbicide for the control of a variety of broad-leaved and sedge weeds in paddy fields and other aquatic situations. It has a role as a herbicide and an EC 2.2.1.6 (acetolactate synthase) inhibitor. It is an aromatic ether, a biaryl, a N-sulfonylurea, a member of tetrazoles and a pyrazole pesticide.

SMILES: COc1cc(OC)nc(NC(=O)NS(=O)(=O)c2c(-c3nnn(C)n3)cnn2C)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][C][=Branch1][C][=O][O][C@@H1][/C][=C][Branch1][Ring1][\C][O][C][C][/C][=C][Branch1][Ring1][\C][O][C][C@H1][Branch1][O][O][C][=Branch1][C][=O][C][Branch1][C][C][C][C@@H1][Ring2][Ring1][Branch2][Ring2][Ring1][Ring2]

The molecule is a germacrane sesquiterpenoid laactone obtained by formal condensation of the carboxy group of isobutyric acid with the secondary hydroxy group of trihydroxygermaeranolide. It has a role as a protein synthesis inhibitor, an antineoplastic agent and a plant metabolite. It is a sesquiterpene lactone, an olefinic compound, a primary alcohol, a diol and a germacrane sesquiterpenoid.

SMILES: C=C1C(=O)OC2C=C(CO)CCC=C(CO)CC(OC(=O)C(C)C)C12
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][Branch1][Branch2][C][C][C][=Branch1][C][=O][O][C][=C][C][=N][C][=Branch2][Ring2][#C][=C][C][NH1][C][Branch2][Ring1][O][C][=C][NH1][C][=Branch1][=Branch2][=C][C][Ring2][Ring1][=Branch1][=N][Ring1][S][C][Branch1][C][C][=C][Ring1][=Branch2][C][Branch1][C][C][O][=C][Branch1][C][C][C][=Ring2][Ring1][Ring1][C][Branch1][C][C][O][C][Branch1][C][C][=C][Ring2][Ring1][=N][C][C][C][=Branch1][C][=O][O]

The molecule is a dicarboxylic acid that is protoporphyrin in which the vinyl groups at positions 7 and 12 are replaced by 1-hydroxyethyl groups. It has a role as a photosensitizing agent. It is a member of protoporphyrins and a dicarboxylic acid. It derives from a protoporphyrin.

SMILES: CC1=C(CCC(=O)O)c2cc3nc(cc4[nH]c(cc5[nH]c(cc1n2)c(C)c5C(C)O)c(C)c4C(C)O)C(C)=C3CCC(=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][=S][=Branch1][C][=O][Branch1][C][O][C][C][Branch1][C][S][C][S]

The molecule is an alkanesulfonic acid that is propane-1-sulfonic acid substituted by sulfanyl groups at positions 2 and 3. It is an alkanesulfonic acid and a dithiol.

SMILES: O=S(=O)(O)CC(S)CS
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][=C][Ring1][#Branch1][C][=Branch1][C][=O][/C][=C][/C][=C][C][=C][Branch1][C][O][C][Branch1][C][O][=C][Ring1][Branch2]

The molecule is a member of the class of chalcones that consists of trans-chalcone substituted by hydroxy groups at positions 3, 4 and 4' and a methoxy group at position 2'. Isolated from Caesalpinia sappan, it exhibits neuroprotective and cytoprotective activity. It has a role as a metabolite, an antioxidant, an anti-inflammatory agent and an anti-allergic agent. It is a member of chalcones, a member of catechols and a monomethoxybenzene. It derives from a trans-chalcone.

SMILES: COc1cc(O)ccc1C(=O)C=Cc1ccc(O)c(O)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][Branch1][C][O-1][C][C@H1][Branch1][C][O][C][C@H1][Branch1][C][O][/C][=C][/C][=C][Branch1][=Branch1][C][C][C][Ring1][Ring1][N][=C][C][=C][C][=C][C][Ring1][=Branch1][=C][Ring1][=N][C][=C][C][=C][Branch1][C][F][C][=C][Ring1][#Branch1]

The molecule is a hydroxy monocarboxylic acid anion that is the conjugate base of pitavastatin, obtained by deprotonation of the carboxy group. It is a conjugate base of a pitavastatin.

SMILES: O=C([O-])CC(O)CC(O)C=Cc1c(C2CC2)nc2ccccc2c1-c1ccc(F)cc1
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][Ring1][Branch2][O][C@@H1][C@H1][Branch1][C][O][C@@H1][Branch1][C][O][C@@H1][Branch1][C][O][O][C@@H1][Ring1][=Branch2][C][=Branch1][C][=O][O-1][C@H1][Branch2][Ring1][Branch2][O][C@H1][O][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring1][O][O][C@H1][Branch1][C][O][C@H1][Ring2][Ring1][P][O]

The molecule is a polyanionic polymer obtained by deprotonation of the carboxy groups of alpha-D-galacturonosyl-[(1->2)-alpha-L-rhamnosyl-(1->4)-alpha-D-galacturonosyl]n; major species at pH 7.3. It is a carbohydrate acid anion and a polyanionic polymer.

SMILES: CC1OC(OC2C(C(=O)[O-])OC(O)C(O)C2O)C(OC2OC(C(=O)[O-])C(O)C(O)C2O)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>

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

The molecule is a dicarboxylic acid. It is a conjugate acid of a diphenate(1-). It derives from a hydride of a biphenyl.

SMILES: O=C(O)c1ccccc1-c1ccccc1C(=O)O