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][=Branch1][C][=O][C][C][Branch1][C][C][Branch1][C][C][C@@][Ring1][=Branch2][Branch1][C][O][/C][=C][/C][Branch1][C][C][=C][/C][=Branch1][C][=O][O][C][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 carboxylic ester that results from the condensation of the carboxylic acid group of (S)-2-trans-abscisic acid with the anomeric hydroxy group of D-glucopyranose. It derives from a (S)-2-trans-abscisic acid.

SMILES: CC(C=CC1(O)C(C)=CC(=O)CC1(C)C)=CC(=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>

[N][C][=N][C][=N][C][NH1][C][=Branch1][C][=O][NH1][C][Ring1][#Branch2][=Ring1][=Branch1]

The molecule is a oxopurine that is adenine bearing a single oxo substituent at position 8. It has a role as a human metabolite. It is a member of 6-aminopurines, an oxopurine and a nucleobase analogue. It derives from an adenine. It is a tautomer of an 8-hydroxyadenine.

SMILES: Nc1ncnc2[nH]c(=O)[nH]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>

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

The molecule is a 1,8-naphthyridine derivative that is 4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid bearing additional 2,4-difluorophenyl, fluoro and 3-aminopyrrolidin-1-yl substituents at positions 1, 6 and 7 respectively. It is a 1,8-naphthyridine derivative, an amino acid, a monocarboxylic acid, an organofluorine compound, an aminopyrrolidine, a tertiary amino compound, a primary amino compound and a quinolone antibiotic. It is a conjugate base of a 1-[6-carboxy-8-(2,4-difluorophenyl)-3-fluoro-5-oxo-5,8-dihydro-1,8-naphthyridin-2-yl]pyrrolidin-3-aminium.

SMILES: NC1CCN(c2nc3c(cc2F)c(=O)c(C(=O)O)cn3-c2ccc(F)cc2F)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>

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

The molecule is an amino tetrasaccharide comprising galactose at the reducing end with a beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1->6)-N-acetyl-beta-D-glucosaminyl group attached at the 3-position. It is an amino tetrasaccharide and a glucosamine oligosaccharide.

SMILES: CC(=O)NC1C(OC2C(O)C(O)OC(CO)C2O)OC(COC2OC(CO)C(OC3OC(CO)C(O)C(O)C3O)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>

[N][C@@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][N][C][=C][C][=C][C][=C][C][=C][C][Ring1][=Branch1][=C][Ring1][#Branch2]

The molecule is a gamma-amino-acid anion obtained by deprotonation of the side-chain carboxy group of N-(alpha-L-glutamyl)-2-naphthylamine. It is a conjugate base of a N-(alpha-L-glutamyl)-2-naphthylamine.

SMILES: NC(CCC(=O)[O-])C(=O)Nc1ccc2ccccc2c1
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C@H1][Branch1][C][O][C][=Branch1][C][=O][N][C@@H1][Branch2][Ring1][S][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring1][#Branch2][O][C@H1][Branch1][C][O][C@@H1][Branch1][C][O][C][C][C][C][C][C][C][C][C][C][C][C][C][C]

The molecule is an inositol phosphophytoceramide(1-) having a tetracosanoyl group attached to the ceramide nitrogen, hydroxylation at C-4 of the long-chain base, and hydroxylation at C-2 of the very-long-chain fatty acid. It is a conjugate base of an Ins-1-P-Cer(t18:0/2-OH-24:0).

SMILES: CCCCCCCCCCCCCCCCCCCCCCC(O)C(=O)NC(COP(=O)([O-])OC1C(O)C(O)C(O)C(O)C1O)C(O)C(O)CCCCCCCCCCCCCC
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][N][C][C][O]

The molecule is an N-(long-chain-acyl)ethanolamine that is the ethanolamide of docosanoic acid. It is a N-(saturated fatty acyl)ethanolamine and a N-(long-chain-acyl)ethanolamine. It derives from a docosanoic acid.

SMILES: CCCCCCCCCCCCCCCCCCCCCC(=O)NCCO
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][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O]

The molecule is an N-acylglycine in which the acyl group is specified as 3-methylbut-2-enoyl. It has a role as a metabolite. It derives from a 3-methylbut-2-enoic acid and a glycine.

SMILES: CC(C)=CC(=O)NCC(=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][N][Branch2][O][P][C@H1][C][C@H1][Branch2][#Branch2][#Branch2][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C@H1][O][C@@H1][Branch1][S][N][C][=C][Branch1][C][C][C][=Branch1][C][=O][NH1][C][Ring1][Branch2][=O][C][C@@H1][Ring1][=C][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C@H1][O][C@@H1][Branch1][S][N][C][=C][Branch1][C][C][C][=Branch1][C][=O][NH1][C][Ring1][Branch2][=O][C][C@@H1][Ring1][=C][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C@H1][O][C@@H1][Branch1][S][N][C][=C][Branch1][C][C][C][=Branch1][C][=O][NH1][C][Ring1][Branch2][=O][C][C@@H1][Ring1][=C][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C@H1][O][C@@H1][Branch1][S][N][C][=C][Branch1][C][C][C][=Branch1][C][=O][NH1][C][Ring1][Branch2][=O][C][C@@H1][Ring1][=C][O][C@@H1][Branch1][O][C][O][P][=Branch1][C][=O][Branch1][C][O][O][O][Ring2][#Branch1][N][C][=Branch1][C][=O][NH1][C][Ring2][Branch2][Ring1][=O]

The molecule is an oligonucleotide comprising five deoxythymidylic acid residues linked 5'->3'. It contains a thymidine 5'-monophosphate residue, a dTMP 5'-end residue and a dTMP 3'-end residue.

SMILES: Cc1cn(C2CC(O)C(COP(=O)(O)OC3CC(n4cc(C)c(=O)[nH]c4=O)OC3COP(=O)(O)OC3CC(n4cc(C)c(=O)[nH]c4=O)OC3COP(=O)(O)OC3CC(n4cc(C)c(=O)[nH]c4=O)OC3COP(=O)(O)OC3CC(n4cc(C)c(=O)[nH]c4=O)OC3COP(=O)(O)O)O2)c(=O)[nH]c1=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][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][O][C][=C][Branch1][#Branch1][C][=Branch1][C][=O][O][C][C@H1][Ring2][Ring1][=Branch1][C][C@@H1][N][C][C][C][=C][Ring1][=Branch1][NH1][C][=C][C][=C][C][=C][Ring1][=Branch2][Ring1][=Branch1]

The molecule is a methyl ester, an indole alkaloid, an alkaloid ester and a beta-D-glucoside. It is a conjugate acid of a 3alpha(S)-strictosidinium(1+).

SMILES: C=CC1C(OC2OC(CO)C(O)C(O)C2O)OC=C(C(=O)OC)C1CC1NCCc2c1[nH]c1ccccc21
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][Branch1][C][O][C][=Branch1][C][=O][O-1]

The molecule is the conjugate base of 2-acetyllactic acid; major species at pH 7.3. It has a role as a Saccharomyces cerevisiae metabolite. It is a hydroxy monocarboxylic acid anion and a 2-oxo monocarboxylic acid anion. It is a conjugate base of a 2-acetyllactic acid.

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

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

SMILES: CC=C(C)C(=O)OC1c2cc3c(c(OC)c2-c2c(cc4c(c2OC)OCO4)CC(C)C1(C)O)OCO3
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][Pt+1].[Cl][Pt+1].[N].[N].[N].[N].[N].[N].[N][C][C][C][C][C][C][N].[N][C][C][C][C][C][C][N].[O][=N+1][Branch1][C][O-1][O-1].[O][=N+1][Branch1][C][O-1][O-1].[O][=N+1][Branch1][C][O-1][O-1].[O][=N+1][Branch1][C][O-1][O-1].[Pt+2]

The molecule is a trinuclear platinum coordination entity that is the tetranitrate salt of triplatin. It has a role as an antineoplastic agent. It is a platinum coordination entity and an organic nitrate salt. It contains a triplatin(4+).

SMILES: Cl[Pt+].Cl[Pt+].N.N.N.N.N.N.NCCCCCCN.NCCCCCCN.O=[N+]([O-])[O-].O=[N+]([O-])[O-].O=[N+]([O-])[O-].O=[N+]([O-])[O-].[Pt+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>

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

The molecule is an acyclic diterpene glycoside consisting of a 20-hydroxygeranyllinalool skeleton conjugated to a malonylglucosyl residue at C-20 and a rhamnosylglucosyl moiety at C-3. It has a role as a metabolite. It is a disaccharide derivative and a diterpene glycoside. It derives from a lyciumoside IV.

SMILES: C=CC(C)(CCC=C(C)CCC=C(C)CCC=C(C)COC1OC(COC(=O)CC(=O)O)C(O)C(O)C1O)OC1OC(CO)C(OC2OC(C)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-1][C@@][Branch1][C][O][Branch1][O][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O-1][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C][O]

The molecule is an organophosphate oxoanion that is a trianion resulting from the deprotonation of the carboxy and phosphate OH groups of 2-carboxy-D-arabinitol 1-phosphate; major species at pH 7.3. It is an organophosphate oxoanion, a carbohydrate acid derivative anion and a monocarboxylic acid anion. It is a conjugate base of a 2-carboxy-D-arabinitol 1-phosphate.

SMILES: O=C([O-])C(O)(COP(=O)([O-])[O-])C(O)C(O)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>

[NH3+1][C@@H1][Branch2][Ring2][=N][C][C][C][=Branch1][C][=O][N][C@@H1][Branch2][Ring1][#Branch1][C][S][C][=C][C][=C][Branch1][=Branch1][N+1][=Branch1][C][=O][O-1][C][=C][Ring1][=Branch2][N+1][=Branch1][C][=O][O-1][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]

The molecule is an S-substituted glutathione(1-) obtained by deprotonation of the the two carboxy groups and protonation of the glutamyl amino group of S-(2,4-dinitrophenyl)glutathione. Major microspecies at pH 7.3. It derives from a glutathionate(1-). It is a conjugate base of a S-(2,4-dinitrophenyl)glutathione.

SMILES: [NH3+]C(CCC(=O)NC(CSc1ccc([N+](=O)[O-])cc1[N+](=O)[O-])C(=O)NCC(=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][N][C@@H1][C@@H1][Branch1][C][O][C@H1][Branch2][Branch1][=C][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][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][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][Ring2][Ring1][S][O][C@@H1][Branch1][Ring1][C][O][O][C@H1][Ring2][Ring2][O][O]

The molecule is a branched amino tetrasaccharide comprising an alpha-D-galactosyl-(1->3)-beta-D-galactopsyl-(1->4)-N-acetyl-beta-D-glucosamine linear trisaccharide, the central galactoside residue of which is linked to a further alpha-D-galactose residue via an alpha(1->4) glycosidic bond. It has a role as an epitope. It is an amino tetrasaccharide and a glucosamine oligosaccharide.

SMILES: CC(=O)NC1C(O)OC(CO)C(OC2OC(CO)C(OC3OC(CO)C(O)C(O)C3O)C(OC3OC(CO)C(O)C(O)C3O)C2O)C1O