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][N][Branch2][Ring1][Ring2][C][C][=C][C][=C][C][Branch1][=Branch2][S][=Branch1][C][=O][=Branch1][C][=O][O][=C][Ring1][#Branch2][C][=C][C][=C][Branch2][Branch1][N][C][=Branch2][Ring2][Branch1][=C][C][=C][C][=Branch2][Ring1][=Branch2][=N+1][Branch1][Ring1][C][C][C][C][=C][C][=C][C][Branch1][=Branch2][S][=Branch1][C][=O][=Branch1][C][=O][O][=C][Ring1][#Branch2][C][=C][Ring2][Ring1][Ring2][C][=C][C][=C][Branch1][C][O][C][=C][Ring1][#Branch1][S][=Branch1][C][=O][=Branch1][C][=O][O][C][=C][Ring2][Ring2][=Branch1]

The molecule is an iminium ion that is the free acid form of Fast green FCF. It is a conjugate acid of a Fast green FCF(2-).

SMILES: CCN(Cc1cccc(S(=O)(=O)O)c1)c1ccc(C(=C2C=CC(=[N+](CC)Cc3cccc(S(=O)(=O)O)c3)C=C2)c2ccc(O)cc2S(=O)(=O)O)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][=Branch1][C][=O][C][C][=Branch1][C][=O][C][C][C][=Branch1][C][=O][O]

The molecule is a dioxo monocarboxylic acid that is heptanoic acid in which oxo groups replace the hydrogens at positions 4 and 6. It is an abnormal metabolite of the tyrosine metabolic pathway and a marker for type 1 tyrosinaemia. It has a role as a human metabolite. It is a beta-diketone and a dioxo monocarboxylic acid.

SMILES: CC(=O)CC(=O)CCC(=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][C][=C][C][Branch2][Ring1][Branch1][O][C][=C][C][=C][Branch1][=Branch2][C][Branch1][C][F][Branch1][C][F][F][C][=C][Ring1][#Branch2][Cl][=C][C][=C][Ring2][Ring1][C][N+1][=Branch1][C][=O][O-1]

The molecule is a member of the class of benzoic acids that is 2-nitrobenzoic acid in which the hydrogen at position 5 is replaced by a 2-chloro-4-(trifluoromethyl)phenoxy group. It is a herbicide used for the post-emergence control of a variety of annual broadleaf weeds. It has a role as a herbicide, an agrochemical and an EC 1.3.3.4 (protoporphyrinogen oxidase) inhibitor. It is a member of benzoic acids, an organochlorine compound, an organofluorine compound, an aromatic ether, a monocarboxylic acid and a C-nitro compound.

SMILES: O=C(O)c1cc(Oc2ccc(C(F)(F)F)cc2Cl)ccc1[N+](=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][C@][Branch1][C][O][C][C@H1][Branch1][C][O][C@@H1][Branch1][C][O][C@H1][Branch2][Ring1][Ring1][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C][O][P][=Branch1][C][=O][Branch1][C][O][O][O][Ring2][Ring1][Ring1]

The molecule is a ketoaldonic acid phosphate that is 3-deoxy-D-glycero-beta-D-galacto-nonulosonic acid carrying a monophosohate substituent at position 9. It has a role as a bacterial metabolite. It is a carbohydrate acid derivative and a ketoaldonic acid phosphate. It is a conjugate acid of a 3-deoxy-D-glycero-beta-D-galacto-nonulosonate 9-phosphate(3-).

SMILES: O=C(O)C1(O)CC(O)C(O)C(C(O)C(O)COP(=O)(O)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>

[C][C][Branch1][C][C][Branch1][C][C][C][=C][C][=C][Branch2][Ring1][=Branch2][C][S][C][C][=N][N][Branch1][=Branch2][C][Branch1][C][C][Branch1][C][C][C][C][=Branch1][C][=O][C][=Ring1][O][Cl][C][=C][Ring2][Ring1][Ring2]

The molecule is a pyridazinone, an organochlorine insecticide and an organochlorine acaricide. It has a role as a mitochondrial NADH:ubiquinone reductase inhibitor.

SMILES: CC(C)(C)c1ccc(CSc2cnn(C(C)(C)C)c(=O)c2Cl)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][=Branch2][Branch1][#Branch2][=C][\C][N][C][=N][C][=N][C][=C][Ring1][=Branch1][N][=C][N][Ring1][Branch1][C@@H1][O][C@H1][Branch2][Ring1][O][C][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O][C@@H1][Branch1][C][O][C@H1][Ring2][Ring1][Ring2][O][C][O]

The molecule is a purine ribonucleoside 5'-triphosphate that is ATP substituted at position N-6 by a (2E)-4-hydroxy-3-methylbut-2-en-1-yl group. It has a role as a plant metabolite. It is a N-glycosylzeatin, an adenosine 5'-phosphate and a purine ribonucleoside 5'-triphosphate. It derives from an ATP. It is a conjugate acid of a 9-ribosyl-trans-zeatin 5'-triphosphate(4-).

SMILES: CC(=CCNc1ncnc2c1ncn2C1OC(COP(=O)(O)OP(=O)(O)OP(=O)(O)O)C(O)C1O)CO
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@H1][Branch1][C][C][C@H1][Branch1][C][N][C][=Branch1][C][=O][N][C@@H1][Branch1][#Branch1][C][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]

The molecule is a dipeptide obtained by formal condensation of the carboxy group of L-isoleucine with the amino group of L-aspartic acid. It derives from a L-isoleucine and a L-aspartic acid.

SMILES: CCC(C)C(N)C(=O)NC(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>

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

The molecule is a trans-fused organic heteropentacyclic compound consisting of an oxacyclooctene, an oxepane, two pyrans and a further oxepane ring fused in a linear sequence. It has a role as an epitope. It is a polycyclic ether and an organic heteropentacyclic compound.

SMILES: OCC1OC2C=CC3OC4C(CC3OC2CC=CC1O)OC1CC=CCOC1C4O
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][O]

The molecule is a secondary alcohol that is propane in which one of the hydrogens attached to the central carbon is substituted by a hydroxy group. It has a role as a protic solvent.

SMILES: CC(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>

[Cl][Ru-2][Branch1][C][Cl][Branch1][C][Cl][Branch1][C][Cl][Branch1][C][Cl][Cl]

The molecule is a perchlorometallate anion having six chlorines and ruthenium(IV) as the metal component. It is a perchlorometallate anion and a ruthenium coordination entity.

SMILES: Cl[Ru-2](Cl)(Cl)(Cl)(Cl)Cl
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][Branch2][Branch1][=Branch2][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][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-1][O-1][C@@H1][Branch1][C][O][C][=Branch1][C][=O][N][C][C][C][=Branch1][C][=O][N][C][C][S][C][=Branch1][C][=O][C][C][C][C][C][C][C][=Branch1][C][=O][O-1]

The molecule is an acyl-CoA oxoanion that is the pentaanion of octanedioyl-CoA, arising from deprotonation of the phosphate, diphosphate and carboxylic acid OH groups. It is a conjugate base of an octanedioyl-CoA.

SMILES: CC(C)(COP(=O)([O-])OP(=O)([O-])OCC1OC(n2cnc3c(N)ncnc32)C(O)C1OP(=O)([O-])[O-])C(O)C(=O)NCCC(=O)NCCSC(=O)CCCCCCC(=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@H1][O][C@H1][Branch1][#Branch1][O][C][Branch1][C][C][=O][C@H1][Branch1][#Branch1][O][C][Branch1][C][C][=O][C@@H1][Branch1][#Branch1][O][C][Branch1][C][C][=O][C@H1][Ring2][Ring1][C][O][C][Branch1][C][C][=O]

The molecule is an O-acyl carbohydrate that consists of alpha-D-galactopyranose bearing five O-acetyl substituents. It has a role as an insulin release inhibitor. It derives from an alpha-D-galactose.

SMILES: CC(=O)OCC1OC(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C1OC(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][C][C][C][C][=Branch1][C][=O][C][=C][Branch1][C][O][C][=C][Branch1][C][O][C][=C][Ring1][Branch2][O]

The molecule is a 2-acylphloroglucinol in which the acyl group is specified as hexanoyl. It is the intermediate biosynthetic precursor for differentiation-inducing factor 1 (DIF-1). It has a role as a plant metabolite.

SMILES: CCCCCC(=O)c1c(O)cc(O)cc1O
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][N][C@@H1][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][C][O][C@@H1][Branch1][Ring1][C][O][O][C@H1][Ring2][Ring1][Branch1][O]

The molecule is an amino disaccharide consisting of beta-D-galactose linked via a (1->3)-glycosidic bond to N-acetyl-beta-D-glucosamine. beta-D-Galp-(1->3)-beta-D-GlcpNAc in which the configuration at the reducing-end anomeric centre is beta. It has a role as an epitope.

SMILES: CC(=O)NC1C(O)OC(CO)C(O)C1OC1OC(CO)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][C@@H1][Branch1][C][O][C@H1][Branch1][P][N][C][=Branch1][C][=O][C][C][C@H1][Branch1][C][N][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]

The molecule is a dipeptide obtained by formal condensation of the side-chain carboxy group of L-glutamic acid with the amino group of L-threonnine. It has a role as a human metabolite. It is a conjugate acid of a gamma-Glu-Thr(1-).

SMILES: CC(O)C(NC(=O)CCC(N)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][O][C][=C][C][O][C][=Branch1][C][=O][C][=C][Branch1][=N][C][O][C][=Branch1][C][=O][C][=C][Branch1][C][C][C][C][=Ring1][#C][C][=C][Ring2][Ring1][Ring1][O][C]

The molecule is a member of the class of coumarins that consists of coumarin substituted by a senecioyloxymethyl group at position 4 and methoxy groups at positions 6 and 7. Isolated from Crinum latifolium, it exhibits anti-angiogenic activity. It has a role as a metabolite and an angiogenesis modulating agent. It is a member of coumarins, an enoate ester and an aromatic ether. It derives from a 3-methylbut-2-enoic acid.

SMILES: COc1cc2oc(=O)cc(COC(=O)C=C(C)C)c2cc1OC
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][O][C][C@H1][Branch1][C][NH3+1][C][=Branch1][C][=O][O-1][=C][C][=C][Ring1][N][O]

The molecule is an aromatic L-alpha-amino acid zwitterion resulting from transfer of a proton from the carboxy to the amino group of 3-O-methyldopa. Major species at pH 7.3 It has a role as a human metabolite. It is a tautomer of a 3-O-methyldopa.

SMILES: COc1cc(CC([NH3+])C(=O)[O-])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][Branch1][C][C][N][Branch1][#Branch2][C][=Branch1][C][=O][C][=Branch1][C][=O][O][C][=C][C][=C][Branch1][C][F][C][=C][Ring1][#Branch1]

The molecule is a monocarboxylic acid that is oxoacetic acid substituted by a (4-fluorophenyl)(propan-2-yl)amino group at position 2. It is a metabolite of the herbicide flufenacet. It is an aromatic amide, a member of monofluorobenzenes and a monocarboxylic acid.

SMILES: CC(C)N(C(=O)C(=O)O)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>

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

The molecule is an organic heterobicyclic compound that consists of (6R)-5-thia-1-azabicyclo[4.2.0]octane bearing an 8-keto substituent. The parent of the class of cephams. It is a natural product fundamental parent, a member of cephams and a saturated organic heterobicyclic parent.

SMILES: O=C1CC2SCCCN12