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

The molecule is a member of the dihydrochalcones that is 3,2',4',6'-tetrahydroxy-4-methoxydihydrochalcone attached to a neohesperidosyl residue at position 4' via glycosidic linkage. It is found in sweet orange. It has a role as an environmental contaminant, a xenobiotic, a plant metabolite and a sweetening agent. It is a neohesperidoside, a disaccharide derivative and a member of dihydrochalcones.

SMILES: COc1ccc(CCC(=O)c2c(O)cc(OC3OC(CO)C(O)C(O)C3OC3OC(C)C(O)C(O)C3O)cc2O)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][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C@@H1][C@@H1][Branch1][C][O][C@@H1][Branch1][S][O][C][=Branch1][C][=O][/C][=C][/C][=C][C][=C][C][=C][Ring1][=Branch1][C@H1][Branch2][#Branch1][=C][O][C@@H1][C@@H1][Branch1][C][O][C@@H1][Branch1][P][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C@H1][Branch2][Branch1][O][O][C@@H1][C@@H1][Branch1][C][O][C@H1][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C@H1][Branch1][=Branch1][C][C][C][C][C][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][Ring2][Ring1][#C][O][C@H1][Ring2][Ring2][Ring2][C][O][C@H1][Ring2][Branch1][O][C][O][C@H1][Ring2][=Branch1][#C][C]

The molecule is a resin glycoside that is the tetrasaccharide derivative of jalapinolic acid. It has been isolated from Ipomoea batatas. It has a role as a metabolite. It is a cinnamate ester, a macrocyclic lactone, a resin glycoside, a tetrasaccharide derivative and a dodecanoate ester. It derives from a trans-cinnamic acid and a jalapinolic acid.

SMILES: CCCCCCCCCCCC(=O)OC1C(C)OC(OC2C(C)OC(OC3C(C)OC4OC5C(OC(CCCCC)CCCCCCCCCC(=O)OC4C3O)OC(C)C(O)C5O)C(OC(=O)CCCCCCCCCCC)C2O)C(OC(=O)C=Cc2ccccc2)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][C][=C][NH1][C][=C][C][=C][C][=C][Ring1][=Branch2][Ring1][=Branch1][C@@H1][O][C][=Branch1][C][=NH2+1][N][C][Ring1][=Branch1][=O]

The molecule is an organic cation obtained by protonation at position 3 in the oxazole ring of N-demethylindolmycin. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a conjugate acid of a N-demethylindolmycin.

SMILES: CC(c1c[nH]c2ccccc12)C1OC(=[NH2+])NC1=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][C][C@H1][Branch1][C][O][C@@H1][C][=Branch1][C][=O][C][=C][Branch1][C][O][C][=C][C][=C][Ring1][#Branch1][O][C@][Ring1][N][Branch1][C][C][C@H1][Ring2][Ring1][C][O]

The molecule is a member of the class of xanthones that is 1,2,3,4,4a,9a-hexahydro-9H-xanthen-9-one substituted by hydroxy groups at positions 1, 4 and 8 and methyl groups at positions 3 and 4a (the 1S,3S,4S,4aS,9aS stereoisomer). Isolated from the marine algicolous fungus Monodictys putredinis, it exhibits antineoplastic activity. It has a role as a metabolite and an antineoplastic agent. It is a member of xanthones, a secondary alcohol and a member of phenols.

SMILES: CC1CC(O)C2C(=O)c3c(O)cccc3OC2(C)C1O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is a cephalosporin with ({1-[2-(dimethylamino)ethyl]-1H-tetrazol-5-yl}sulfanyl)methyl and (2-amino-1,3-thiazol-4-yl)acetamido substituents at positions 3 and 7, respectively, of the cephem skeleton. A third generation beta-lactam cephalosporin antibiotic, it is active against a broad spectrum of both Gram positive and Gram negative bacteria. It has a role as an antibacterial drug. It is a cephalosporin, a semisynthetic derivative and a beta-lactam antibiotic allergen.

SMILES: CN(C)CCn1nnnc1SCC1=C(C(=O)O)N2C(=O)C(NC(=O)Cc3csc(N)n3)C2SC1
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@H1][Branch1][C][C][C@H1][C][C@H1][O][O][C@@H1][Ring1][=Branch1][C][=C][Ring1][=Branch1][C]

The molecule is a sesquiterpenoid that is bisabola-2,10-diene substituted by a peroxy group between positions 2 and 10 (the 1S,4R,6R stereoisomer). Isolated from Artemisia stolonifera and Eupatorium rufescens, it exhibits antineoplastic and antiplasmodial activity. It has a role as a metabolite, an antineoplastic agent and an antiplasmodial drug. It is an organic peroxide and a sesquiterpenoid. It derives from a hydride of a bisabolane.

SMILES: CC(C)=CCCC(C)C1CC2OOC1C=C2C
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][=Branch1][C][=O][C][/C][=C][\C][/C][=C][\C][C][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 polyunsaturated fatty acyl-CoA(4-) obtained by deprotonation of the phosphate and diphosphate functions of 11-oxo-HETE-CoA; major species at pH 7.3. It is a long-chain fatty acyl-CoA(4-) and a polyunsaturated fatty acyl-CoA(4-). It is a conjugate base of an 11-oxo-ETE-CoA.

SMILES: CCCCCC=CC=CC(=O)CC=CCC=CCCCC(=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][S][C][C][S][=Branch1][C][=O][=Branch1][C][=O][O-1]

The molecule is an organosulfonate oxoanion that is the conjugate base of methyl-CoM, arising from deprotonation of the sulfo group; major species at pH 7.3. It is a conjugate base of a methyl-CoM.

SMILES: CSCCS(=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][Branch1][C][C][O][C][=Branch1][C][=O][C@H1][Branch1][C][C][N][P@][=Branch1][C][=O][Branch2][Ring1][Branch2][C][O][C@H1][Branch1][C][C][C][N+1][=C][NH1][C][=C][Branch1][C][N][N][=C][N][=C][Ring1][#Branch1][Ring1][#Branch2][O][C][=C][C][=C][C][=C][Ring1][=Branch1]

The molecule is an organic cation obtained by protonation of the exocyclic amino group of tenofovir alafenamide. It is an ammonium ion derivative and an organic cation. It is a conjugate acid of a tenofovir alafenamide.

SMILES: CC(C)OC(=O)C(C)NP(=O)(COC(C)C[n+]1c[nH]c2c(N)ncnc21)Oc1ccccc1
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@@H1][Branch1][C][O][C][NH3+1]

The molecule is a cationic sphingoid obtained by the protonation of the amino group of 1-deoxymethylsphinganine. It is a cationic sphingoid and a Deoxymethylsphingoid base. It is a conjugate acid of a 1-deoxymethylsphinganine.

SMILES: CCCCCCCCCCCCCCCC(O)C[NH3+]
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][S][C][C][C@H1][Branch1][#Branch1][N][C][Branch1][C][C][=O][C][=Branch1][C][=O][N][C@@H1][Branch1][C][C][C][=Branch1][C][=O][O]

The molecule is a dipeptide obtained by formal condensation of the carboxy group of N-acetyl-L-methionine with the amino group of L-alanine. It is an acetamide and a dipeptide.

SMILES: CSCCC(NC(C)=O)C(=O)NC(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][=C][Branch1][#C][C][C][C][Branch1][C][O][C][Branch1][C][C][Branch1][C][C][O][C@H1][C][C][C@][Branch1][C][C][C@@H1][Ring1][=Branch1][C][C][C@@H1][C@@][Branch1][C][C][C][C][C][=Branch1][C][=O][C][Branch1][C][C][Branch1][C][C][C@@H1][Ring1][#Branch2][C][C][C@][Ring1][=C][Ring2][Ring1][Ring1][C]

The molecule is a tetracyclic triterpenoid that is dammar-20-ene substituted by hydroxy groups at positions 24 and 25 and an oxo group at position 3. It has been isolated from the stems of Aglaia abbreviata. It has a role as a plant metabolite. It is a diol, a tetracyclic triterpenoid and a cyclic terpene ketone. It derives from a hydride of a dammarane.

SMILES: C=C(CCC(O)C(C)(C)O)C1CCC2(C)C1CCC1C3(C)CCC(=O)C(C)(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][C][/C][=C][\C][/C][=C][\C][C][C][C][C][C][C][C][=C][C][=C][C][Branch1][C][O][=C][Ring1][#Branch1][O]

The molecule is catechol substituted at position 3 with an (8Z,11Z)-pentadeca-8,11-dien-1-yl group. Stereoisomer of urushiol III (CHEBI:9909) which has (8E,11E) configuration. It has a role as an allergen.

SMILES: CCCC=CCC=CCCCCCCCc1cccc(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][=N][N][C][=Branch1][C][=O][C@@H1][C][C][C][N][Ring1][Branch1][C][=Branch1][C][=O][O]

The molecule is a dipeptide formed from L-proline and L-alanine residues. It has a role as a metabolite. It is a tautomer of a Pro-Ala zwitterion.

SMILES: CC(NC(=O)C1CCCN1)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][C@H1][Ring1][Branch1][C][C][C@H1][Ring1][=Branch1][C@][Branch1][C][C][C][C][C@H1][Branch1][C][O][C@@][Branch1][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C@H1][Ring1][N][C@@H1][Ring2][Ring1][Ring1][C][=Branch1][C][=O][O-1]

The molecule is a dicarboxylic acid anion obtained by deprotonation of both carboxy groups of gibberellin A14. It is a dicarboxylic acid dianion and a gibberellin carboxylic acid anion. It is a conjugate base of a gibberellin A14.

SMILES: C=C1CC23CC1CCC2C1(C)CCC(O)C(C)(C(=O)[O-])C1C3C(=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][Branch2][Ring1][P][O][C][=C][C][=C][Branch1][C][O][C][=C][Branch1][C][O][C][=C][Ring1][Branch2][O+1][=C][Ring1][N][C][=C][C][=C][Branch1][C][O][C][=C][Ring1][#Branch1][C@H1][Branch1][P][O][C@@H1][O][C][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring1][Branch2][O][C@@H1][Branch1][C][O][C@@H1][Ring2][Ring2][Branch1][O]

The molecule is an anthocyanidin 3-O-beta-D-sambubioside having pelargonidin as the anthocyanidin component. It has a role as a metabolite. It derives from a pelargonidin.

SMILES: OCC1OC(Oc2cc3c(O)cc(O)cc3[o+]c2-c2ccc(O)cc2)C(OC2OCC(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>

[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][C][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C@H1][Branch1][C][N][C][=Branch1][C][=O][O]

The molecule is a 3-sn-phosphatidyl L-serine in which the phosphatidyl acyl groups at positions 1 and 2 are palmitoyl and stearoyl respectively. It has a role as a mouse metabolite. It derives from an octadecanoic acid and a hexadecanoic acid.

SMILES: CCCCCCCCCCCCCCCCCC(=O)OC(COC(=O)CCCCCCCCCCCCCCC)COP(=O)(O)OCC(N)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][=C][/C][=Branch1][C][=O][O][C][C]

The molecule is the fatty acid ethyl ester of 2-heptenoic acid. It has a role as a metabolite. It derives from a 2-heptenoic acid.

SMILES: CCCCC=CC(=O)OCC