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>

[O][=Cr][=Branch1][C][=O][Branch1][C][O-1][O-1].[K+1].[K+1]

The molecule is a potassium salt consisting of potassium and chromate ions in a 2:1 ratio. It has a role as a carcinogenic agent and an oxidising agent. It contains a chromate(2-).

SMILES: O=[Cr](=O)([O-])[O-].[K+].[K+]
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][N][O][C][C@H1][Branch1][C][NH3+1][C][=Branch1][C][=O][O-1]

The molecule is an L-alpha-amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of O-ureido-L-serine. It is a tautomer of an O-ureido-L-serine.

SMILES: NC(=O)NOCC([NH3+])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][=Branch1][C][=O][N][C@H1][C@@H1][Branch2][Ring2][N][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C@H1][O][C@@H1][Branch1][=N][N][C][=C][C][=Branch1][C][=O][NH1][C][Ring1][#Branch1][=O][C@H1][Branch1][C][O][C@@H1][Ring1][=C][O][O][C@H1][Branch1][Ring1][C][O][C@@H1][Branch1][C][O][C@@H1][Ring2][Ring2][C][O][C@H1][Branch1][C][C][C][=Branch1][C][=O][N][C@@H1][Branch1][C][C][C][=Branch1][C][=O][N][C@H1][Branch2][Ring1][Branch1][C][C][C][=Branch1][C][=O][N][C][C][C][C][C@@H1][Branch1][C][N][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]

The molecule is a UDP-glycopeptide in which the glycopeptide component consists of N(6)-(N-acetyl-alpha-D-muramoyl-L-alanyl-D-gamma-glutamyl)-D-lysine, joined to UDP via a glycosyl diphosphate bond. It is a conjugate acid of a N(6)-(UDP-N-acetyl-alpha-D-muramoyl-L-alanyl-D-gamma-glutamyl)-D-lysine(3-).

SMILES: CC(=O)NC1C(OP(=O)(O)OP(=O)(O)OCC2OC(n3ccc(=O)[nH]c3=O)C(O)C2O)OC(CO)C(O)C1OC(C)C(=O)NC(C)C(=O)NC(CCC(=O)NCCCCC(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][C][=Branch1][C][=O][C@H1][C][C][C@H1][C@@H1][C][C][C][=C][C][=Branch1][C][=O][C][C@][Ring1][=Branch1][Branch1][C][C][C@H1][Ring1][O][C][C][C@][Ring2][Ring1][C][Ring1][#C][C]

The molecule is a 2-oxo steroid that is a derivative of pregnane obtained by the loss of a methylene group. It is a 2-oxo steroid and a 20-oxo steroid.

SMILES: CC(=O)C1CCC2C3CCC4=CC(=O)CC4(C)C3CCC12C
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][Branch1][C][C][=C][/C][C][/C][Branch1][C][C][=C][/C][C][/C][Branch1][C][C][=C][/C][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][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]

The molecule is a polyprenyl glycosyl phosphate having alpha-D-galactopyranose as the glycosyl fragment. It is a conjugate acid of an alpha-D-galactosyl undecaprenyl diphosphate(2-).

SMILES: CC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCCC(C)=CCOP(=O)(O)OP(=O)(O)OC1OC(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][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C@@H1][Branch1][C][O][C][C][=Branch1][C][=O][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-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]

The molecule is a 3-hydroxy fatty acyl-CoA(4-) obtained by deprotonation of the phosphate and diphosphate OH groups of (R)-3-hydroxyicosanoyl-CoA; major species at pH 7.3. It is a (R)-3-hydroxyacyl-CoA(4-) and a 3-hydroxyicosanoyl-CoA(4-). It is a conjugate base of a (R)-3-hydroxyicosanoyl-CoA.

SMILES: CCCCCCCCCCCCCCCCCC(O)CC(=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][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C@H1][Branch1][N][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C@@H1][C@@H1][Branch2][Ring2][Branch1][N][C][=Branch1][C][=O][C][C@@H1][Branch1][N][C][C][C][C][C][C][C][C][C][C][C][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C@H1][Branch2][#Branch1][Ring2][O][C][C@H1][O][C@H1][Branch2][Ring1][Branch1][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C][N][C@H1][Branch2][Ring1][=Branch1][N][C][=Branch1][C][=O][C][C@H1][Branch1][C][O][C][C][C][C][C][C][C][C][C][C][C][C@@H1][Branch2][Ring1][=Branch1][O][C][=Branch1][C][=O][C][C@H1][Branch1][C][O][C][C][C][C][C][C][C][C][C][C][C][C@@H1][Ring2][Branch1][Ring2][O][O][C@H1][Branch2][#Branch1][=C][C][O][C@][Branch1][=Branch1][C][=Branch1][C][=O][O][C][C@@H1][Branch1][C][O][C@@H1][Branch2][Branch1][=C][O][C@H1][O][C@H1][Branch1][#Branch1][C@@H1][Branch1][C][O][C][O][C@@H1][Branch1][C][O][C@H1][Branch2][Ring2][Branch1][O][C@H1][O][C@H1][Branch1][#Branch1][C@@H1][Branch1][C][O][C][O][C@@H1][Branch1][C][O][C@H1][Branch1][=N][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C][N][C@@H1][Ring2][Ring1][Ring1][O][C@@H1][Ring2][Ring1][S][O][C@@H1][Branch1][#Branch1][C@H1][Branch1][C][O][C][O][O][Ring2][Ring2][S][C@H1][Ring2][#Branch2][=N][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O]

The molecule is a lipid A derivative that consists of a linear trisaccharide phosphate comprising an L-glycero-alpha-D-manno-heptose residue phosphoethanolamine-substituted on O-3, another L-glycero-alpha-D-manno-heptose residue and a 3-deoxy-D-manno-oct-2-ulosonic acid (2-keto-3-deoxy-D-mannooctanoic acid, Kdo) in a (1->3), (1->5) sequence, with the Kdo residue at the reducing end connected via an alpha(2->6) linkage to a de-O-acylated lipid A. Corresponds to the de-O-acylated lipid A conjugate of the icsA mutant of the core oligosaccharide of Neisseria meningitidis. It is a member of lipid As, a dodecanoate ester and a tetradecanoate ester.

SMILES: CCCCCCCCCCCCCC(=O)OC(CCCCCCCCCCC)CC(=O)OC1C(NC(=O)CC(CCCCCCCCCCC)OC(=O)CCCCCCCCCCC)C(OCC2OC(OP(=O)(O)OP(=O)(O)OCCN)C(NC(=O)CC(O)CCCCCCCCCCC)C(OC(=O)CC(O)CCCCCCCCCCC)C2O)OC(COC2(C(=O)O)CC(O)C(OC3OC(C(O)CO)C(O)C(OC4OC(C(O)CO)C(O)C(OP(=O)(O)OCCN)C4O)C3O)C(C(O)CO)O2)C1OP(=O)(O)OP(=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][C@H1][Branch1][C][C][C@H1][Branch1][C][N][C][=Branch1][C][=O][N][C@@H1][Branch1][C][C][C][=Branch1][C][=O][N][C][C][C][C@@H1][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][C@@H1][Branch2][Ring1][N][C][C][C@H1][Branch1][Ring1][C][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][=O][N][C][C][=Branch1][C][=O][N][C@@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][O][C][=Branch1][C][=O][N][C@@H1][Branch1][Branch2][C][C][C][Branch1][C][N][=O][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][N][C][C][C][C@H1][Ring1][Branch1][C][=Branch1][C][=O][N][C@@H1][Branch1][=Branch1][C][C][C][C][N][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][N][C@@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][O][C][=Branch1][C][=O][N][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][C@@H1][Branch1][C][C][O]

The molecule is a glycopeptide that consists of (5R)-5-(beta-D-galactopyranosyloxy)lysyl, glycyl. alpha-glutamyl, glutaminyl, glycyl, prolyl, lysyl, glycyl, alpha-glutamyl and threonine residues coupled in sequence with an isostere-modified Ile-Ala-GlyPsi(CH2CH2)Phe tetrapeptoid unit attached to the amino terminus.

SMILES: CCC(C)C(N)C(=O)NC(C)C(=O)NCCCC(Cc1ccccc1)C(=O)NC(CCC(CN)OC1OC(CO)C(O)C(O)C1O)C(=O)NCC(=O)NC(CCC(=O)O)C(=O)NC(CCC(N)=O)C(=O)NCC(=O)N1CCCC1C(=O)NC(CCCCN)C(=O)NCC(=O)NC(CCC(=O)O)C(=O)NC(C(=O)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][O][C][=C][C][Branch2][Ring2][P][C][=C][C][=C][Branch2][Ring1][P][N+1][=N][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][=N][N][Ring1][O][C][=C][C][=C][Branch1][=Branch1][N+1][=Branch1][C][=O][O-1][C][=C][Ring1][=Branch2][C][Branch1][Ring1][O][C][=C][Ring2][Ring1][N][=C][C][=C][Ring2][Ring2][C][N+1][=N][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][=N][N][Ring1][O][C][=C][C][=C][Branch1][=Branch1][N+1][=Branch1][C][=O][O-1][C][=C][Ring1][=Branch2].[Cl-1].[Cl-1]

The molecule is an organic chloride salt having nitro blue tetrazolium(2+) as the counterion. It contains a nitro blue tetrazolium(2+).

SMILES: COc1cc(-c2ccc(-[n+]3nc(-c4ccccc4)nn3-c3ccc([N+](=O)[O-])cc3)c(OC)c2)ccc1-[n+]1nc(-c2ccccc2)nn1-c1ccc([N+](=O)[O-])cc1.[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][C][C][C][C@H1][Branch1][C][O][/C][=C][/C@H1][O][C][Branch1][C][O][C][C@H1][Branch1][C][O][C@@H1][Ring1][Branch2][C][/C][=C][\C][C][C][C][=Branch1][C][=O][O]

The molecule is a member of the class of thromboxanes B that is (5Z,13E)-thromboxa-5,13-dien-1-oic acid substituted by hydroxy groups at positions 9, 11 and 15. It has a role as a human metabolite and a mouse metabolite. It is a conjugate acid of a thromboxane B2(1-).

SMILES: CCCCCC(O)C=CC1OC(O)CC(O)C1CC=CCCCC(=O)O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is an L-alpha-amino acid zwitterion resulting from the transfer of a proton from the carboxy group to the alpha-amino group of 6,7-dichloro-L-tryptophan; major species at pH 7.3. It is a tautomer of a 6,7-dichloro-L-tryptophan.

SMILES: [NH3+]C(Cc1c[nH]c2c(Cl)c(Cl)ccc12)C(=O)[O-]
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is a steroid glucosiduronic acid that is 5alpha-dihydrotestosterone having a beta-D-glucuronosyl-(1->2)-glucuronic acid residue attached at position 17. It is a 3-oxo-5alpha-steroid, a steroid glucosiduronic acid and a disaccharide derivative. It derives from a 17beta-hydroxy-5alpha-androstan-3-one. It is a conjugate acid of a 5alpha-dihydrotestosterone 17-O-[beta-D-glucuronosyl-(1->2)-glucuronide](2-).

SMILES: CC12CCC(=O)CC1CCC1C2CCC2(C)C(OC3OC(C(=O)O)C(O)C(O)C3OC3OC(C(=O)O)C(O)C(O)C3O)CCC12
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is a 4-carbon, branched hydroxy fatty acid and intermediate in the metabolism of valine. It derives from a propionic acid. It is a conjugate acid of a 3-hydroxyisobutyrate.

SMILES: CC(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][Branch1][C][C][=C][C][C][C][Branch1][C][C][C][=C][C][=C][Branch1][C][C][C][=C][Ring1][#Branch1]

The molecule is a sesquiterpene that is 2-methyl-2-heptene in which one of the hydrogens at position 6 is substituted by a p-tolyl group.

SMILES: CC(C)=CCCC(C)c1ccc(C)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>

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

The molecule is a tripeptide composed of one L-glutamic acid and two L-cysteine units joined by peptide linkages. It has a role as a metabolite. It derives from a L-glutamic acid and a L-cysteine.

SMILES: NC(CCC(=O)O)C(=O)NC(CS)C(=O)NC(CS)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][Branch1][C][O][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 a hydroxybutanoyl-CoA having 3-hydroxybutanoyl as the S-acyl component. It has a role as a mouse metabolite. It is a 3-hydroxyacyl-CoA and a hydroxybutanoyl-CoA. It derives from a butyryl-CoA and a 3-hydroxybutyric acid. It is a conjugate acid of a 3-hydroxybutanoyl-CoA(4-).

SMILES: CC(O)CC(=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