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@@][Branch1][C][C][C][C][C][Branch1][=Branch1][C][Branch1][C][C][C][=C][C@@H1][Ring1][#Branch2][C][=Branch1][C][=C][C]

The molecule is a sesquiterpene that is cyclohexene that is substituted at positions 1, 3, 4, and 4 by isopropyl, isopropenyl, methyl, and vinyl groups, respectively (the R,R stereoisomer). It has a role as an apoptosis inducer and a plant metabolite. It is a monocyclic hydrocarbon, a cyclic olefin and a sesquiterpene.

SMILES: C=CC1(C)CCC(C(C)C)=CC1C(=C)C
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][C][C][=Branch1][C][=O][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][C][C][Ring1][#Branch2][=O]

The molecule is a 4-oxo monocarboxylic acid that is cyclohexanecarboxylic acid which is substituted by oxo groups at positions 3 and 5, and by a propanoyl group at position 4. A plant growth regulator, it is used (commonly as the corresponding calcium salt, known as prohexadione-calcium) as an anti-lodging agent in small-grain cereals. It has a role as an agrochemical, a plant growth regulator and a gibberellin biosynthesis inhibitor. It is a 4-oxo monocarboxylic acid and a beta-triketone. It is a conjugate acid of a prohexadione(2-).

SMILES: CCC(=O)C1C(=O)CC(C(=O)O)CC1=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][=Branch1][C][=O][O]

The molecule is an (omega-1)-hydroxy fatty acid that is (2E)-non-2-enoic acid in which the hydrogen at the 8 pro-R position is replaced by a hydroxy group. It is a medium-chain fatty acid, an (omega-1)-hydroxy fatty acid, an alpha,beta-unsaturated monocarboxylic acid and a hydroxy monounsaturated fatty acid.

SMILES: CC(O)CCCCC=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>

[C][C][Branch1][C][C][C][N][C][=Branch1][C][=O][/C][=C][/C][C][C][C][C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][O][Ring1][=Branch1]

The molecule is an enamide that is (2E)-N-isobutylhept-2-enamide which is substituted at position 7 by a 3,4-methylenedioxyphenyl group. A natural product found in Piper sarmentosum. It has a role as a metabolite, an apoptosis inducer and a plant metabolite. It is an alkaloid, a member of benzodioxoles, an enamide and a secondary carboxamide. It derives from a 2-methylpropanamine.

SMILES: CC(C)CNC(=O)C=CCCCCc1ccc2c(c1)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][C][Branch1][C][C][=C][C][C][/C][Branch1][C][C][=C][/C][C][/C][Branch1][C][C][=C][/C][C][/C][Branch1][C][C][=C][/C][C][/C][Branch1][C][C][=C][/C][C][/C][Branch1][C][C][=C][/C][C][/C][Branch1][C][C][=C][/C][C][/C][Branch1][C][C][=C][/C][C][=C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][=C][C][Branch1][C][O][=C][Ring1][#Branch2][O]

The molecule is a dihydroxybenzoic acid where the hydroxy groups are at the 4- and 5-positions together with a octaprenyl group at the 3-position. It is a conjugate acid of a 3,4-dihydroxy-5-all-trans-octaprenylbenzoate.

SMILES: CC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCc1cc(C(=O)O)cc(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][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][C@H1][Branch2][Ring1][Branch1][C][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C][N]

The molecule is a 1,2-diacyl-sn-glycero-3-phosphoethanolamine in which the 1- and 2-acyl groups are specified as pentadecanoyl and docosanoyl respectively. It has a role as a mouse metabolite and a rat metabolite. It is a 1,2-diacyl-sn-glycero-3-phosphoethanolamine and a phosphatidylethanolamine 37:0. It derives from a docosanoic acid and a pentadecanoic acid.

SMILES: CCCCCCCCCCCCCCCCCCCCCC(=O)OC(COC(=O)CCCCCCCCCCCCCC)COP(=O)(O)OCCN
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][P][O][C][=C][C][=C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][=C][Ring1][=Branch2][C][=Branch1][C][=O][O]

The molecule is a dicarboxylic acid that is benzoic acid in which the hydrogen at position 3 is replaced by a (1-carboxyvinyl)oxy group. It is a member of benzoic acids, a dicarboxylic acid, an aromatic ether and an enol ether. It derives from an acrylic acid. It is a conjugate acid of a 3-[(1-carboxylatovinyl)oxy]benzoate(2-).

SMILES: C=C(Oc1cccc(C(=O)O)c1)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][N][C@@H1][Branch1][C][C][C][=Branch1][C][=O][O]

The molecule is a methyl-L-alanine in which one of the the amino hydrogen of L-alanine is replaced by a methyl group. It is a tautomer of a N-methyl-L-alanine zwitterion.

SMILES: CNC(C)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][=N][C@H1][O][C@@H1][Branch1][S][C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][O][Ring1][=Branch1][C@H1][Branch1][C][C][C@@H1][Ring1][#C][C][C][=C][Ring2][Ring1][=Branch1][O][C]

The molecule is a lignan that is tetrahydrofuran substituted by methyl groups at positions 3 and 4, a 3,4-dimethoxyphenyl group at position 5 and a 1,3-benzodioxol-5-yl moiety at position 2 (the 2R,3R,4S,5S stereoisomer). Isolated from the aerial parts of Piper futokadsura, it exhibits inhibitory activity against production of nitric oxide (NO). It has a role as a metabolite and an EC 1.14.13.39 (nitric oxide synthase) inhibitor. It is a member of benzodioxoles, a dimethoxybenzene, a lignan and a member of oxolanes.

SMILES: COc1ccc(C2OC(c3ccc4c(c3)OCO4)C(C)C2C)cc1OC
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][Branch1][=Branch1][C][=C][Ring1][=Branch1][O][C][=Branch1][C][=O][C@H1][Branch1][C][C][C@@H1][Branch1][C][C][C][Ring1][N]

The molecule is a lignan that is 3,4-dihydronaphthalen-1(2H)-one substituted by a hydroxy group at position 7, a methoxy group at position 6 and methyl groups at positions 2 and 3 (the 2R,3S-stereoisomer). It has been isolated from the bark of Machilus robusta. It has a role as a plant metabolite. It is a member of tetralins, a lignan and a member of guaiacols.

SMILES: COc1cc2c(cc1O)C(=O)C(C)C(C)C2
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@H1][Branch2][Branch1][=Branch1][C][C][C][C][C][C][C][C][=C][C][Branch1][C][O][=C][C][Branch1][C][O][=C][Ring1][Branch2][C][=Branch1][C][=O][O][C@H1][Branch1][Ring2][C][C][C][C][C][C][C][C][C][C][C][=C][C][Branch1][C][O][=C][C][Branch1][C][O][=C][Ring1][Branch2][O][C][Branch1][C][C][=O]

The molecule is a benzoate ester obtained by the formal condensation of the hydroxy group of 5-(8-hydroxyundecyl)benzene-1,3-diol with 4,6-dihydroxy benzoic acid which is also substituted by a 8-(acetoxy)undecyl group at position 2. It is isolated from Cytonaema sp. and has anti-HIV-1 activity. It has a role as a metabolite and a HIV-1 integrase inhibitor. It is a member of resorcinols and a benzoate ester.

SMILES: CCCC(CCCCCCCc1cc(O)cc(O)c1C(=O)OC(CCC)CCCCCCCc1cc(O)cc(O)c1)OC(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>

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

The molecule is a C-glycosyl compound that is luteolin substituted by beta-D-glucopyranosyl moieties at positions 6 and 8 respectively. It is a C-glycosyl compound and a tetrahydroxyflavone. It derives from a luteolin.

SMILES: O=c1cc(-c2ccc(O)c(O)c2)oc2c(C3OC(CO)C(O)C(O)C3O)c(O)c(C3OC(CO)C(O)C(O)C3O)c(O)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][Branch1][C][C][C][C][C@][Branch2][Ring1][=Branch2][C][=Branch1][C][=O][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][C][O][C][C@][Branch1][C][C][C][=Branch2][Branch2][=N][=C][C][C@@H1][C@@][Branch1][C][C][C][C][C@H1][Branch2][=Branch1][O][O][C@@H1][O][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][C@@H1][Branch1][C][O][C@H1][Branch2][Ring1][S][O][C@@H1][O][C][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring1][Branch2][O][C@@H1][O][C][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring1][Branch2][O][C@H1][Ring2][Ring1][=N][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][Branch1][C][C][Branch1][C][C][C@@H1][Ring2][Branch1][Ring1][C][C][C@][Ring2][Branch1][#Branch1][Ring2][Branch1][N][C][C@@H1][Ring2][=Branch1][S][C][Ring2][#Branch1][Branch1]

The molecule is a triterpenoid saponin that has 3,16-dihydroxyolean-12-en-28-oic acid as the aglycone. Isolated from the stems of Gordonia chrysandra, it exhibits a strong inhibitory effect on nitric oxide production. It has a role as a plant metabolite and an anti-inflammatory agent. It is a beta-D-glucosiduronic acid, a carboxylic ester, a pentacyclic triterpenoid and a triterpenoid saponin. It derives from a hydride of an oleanane.

SMILES: CC1(C)CCC2(C(=O)OC3OC(CO)C(O)C(O)C3O)C(O)CC3(C)C(=CCC4C5(C)CCC(OC6OC(C(=O)O)C(O)C(OC7OCC(O)C(O)C7OC7OCC(O)C(O)C7O)C6OC6OC(CO)C(O)C(O)C6O)C(C)(C)C5CCC43C)C2C1
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]

The molecule is a straight-chain alkane with 17 carbon atoms. It is a component of essential oils from plants like Opuntia littoralis and Annona squamosa. It has a role as a plant metabolite and a volatile oil component.

SMILES: CCCCCCCCCCCCCCCCC
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][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][=C][C][Branch1][C][O][=C][Branch1][C][O][C][Branch1][C][O][=C][Ring2][Ring1][Ring1][Ring1][=Branch2]

The molecule is a trihydroxyflavone with the hydroxy groups at positions C-5, -6 and -7. It has a role as an antioxidant, a hormone antagonist, a prostaglandin antagonist, an EC 1.13.11.31 (arachidonate 12-lipoxygenase) inhibitor, an EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor, a radical scavenger, an EC 3.4.21.26 (prolyl oligopeptidase) inhibitor, an anti-inflammatory agent and a plant metabolite. It is a conjugate acid of a baicalein(1-).

SMILES: O=c1cc(-c2ccccc2)oc2cc(O)c(O)c(O)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>

[O][=C][Branch1][C][O-1][C@@H1][C][C][Branch1][C][O][C][NH2+1][Ring1][=Branch1]

The molecule is the amino acid zwitterion formed from 4-hydroxy-L-proline. It is the major microspecies present at pH 7.3. It has a role as a human metabolite. It is a tautomer of a 4-hydroxy-L-proline.

SMILES: O=C([O-])C1CC(O)C[NH2+]1
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@@][O][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C@@H1][Ring1][O][C@@H1][C@H1][O][C@@][Ring1][Ring1][Branch1][C][C][C@@H1][Branch1][C][O][C@][Branch1][C][O][C][=Branch1][C][=O][C@@H1][Branch1][C][C][C][C@H1][Ring1][Branch2][C@@][Ring1][S][Branch1][Branch1][O][Ring2][Ring1][#Branch2][C@H1][Branch1][C][C][C@@H1][Ring2][Ring1][#C][O][C][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1]

The molecule is a diterpenoid, a benzoate ester, an epoxide, an organic heterohexacyclic compound, a tertiary alpha-hydroxy ketone and a beta-hydroxy ketone. It has a role as a metabolite.

SMILES: C=C(C)C12OC3(c4ccccc4)OC1C1C4OC4(C)C(O)C4(O)C(=O)C(C)CC4C1(O3)C(C)C2OC(=O)c1ccccc1