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][C][C][C][C][C][C][C][C][C][/C][=C][/C@@H1][Branch1][C][O][C@H1][Branch1][O][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O-1][N][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C]

The molecule is a ceramide 1-phosphate(2-) in which the N-acyl group is specified as eicosanoyl. It is a conjugate base of a N-icosanoylsphingosine 1-phosphate.

SMILES: CCCCCCCCCCCCCC=CC(O)C(COP(=O)([O-])[O-])NC(=O)CCCCCCCCCCCCCCCCCCC
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][C][Branch1][C][O][C][=Branch1][C][=O][O-1]

The molecule is a dicarboxylic acid dianion arising from deprotonation of both carboxy groups of 2-hydroxy-3-oxosuccinic acid; major species at pH 7.3. It is a dicarboxylic acid dianion, an oxo carboxylic acid anion and a C4-dicarboxylate. It is a conjugate base of a 2-hydroxy-3-oxosuccinic acid.

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

[NH3+1][C@@H1][Branch2][Ring1][P][C][C][C][C][NH2+1][C][C][=Branch1][C][=O][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O-1][C][=Branch1][C][=O][O-1]

The molecule is an L-alpha-amino acid anion comprising fructoselysine 6-phosphate having deprotonated carboxy and phosphate groups and both amino groups protonated; major species at pH 7.3. It is an organophosphate oxoanion and a L-alpha-amino acid anion. It is a conjugate base of a fructoselysine 6-phosphate.

SMILES: [NH3+]C(CCCC[NH2+]CC(=O)C(O)C(O)C(O)COP(=O)([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][Branch2][Ring1][=Branch1][N][C@@H1][Branch1][=N][C][C][=C][C][=C][Branch1][C][O][C][=C][Ring1][#Branch1][C][=Branch1][C][=O][O][C][=C][C][=C][C][=C][Ring1][=Branch1]

The molecule is an N-acyl-L-tyrosine that is L-tyrosine in which one of the hydrogens of the amino group has been replaced by a benzoyl group. It is a N-acyl-L-tyrosine and a member of benzamides.

SMILES: O=C(NC(Cc1ccc(O)cc1)C(=O)O)c1ccccc1
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is a member of the class of tryptamines that is melatonin with a hydroxy group substituent at position 6. It has a role as a metabolite and a mouse metabolite. It is a member of acetamides and a member of tryptamines. It derives from a melatonin.

SMILES: COc1cc2c(CCNC(C)=O)c[nH]c2cc1O
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][O][C@@H1][Branch1][#Branch1][C@H1][Branch1][C][O][C][O][C@H1][Branch1][C][O][C@H1][Ring1][#Branch2][O]

The molecule is a galactonolactone derived from D-galactonic acid. It has a role as a human metabolite. It derives from a D-galactonic acid.

SMILES: O=C1OC(C(O)CO)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][=Branch1][C][=O][N][C][=C][Branch1][C][I][C][Branch1][#Branch1][N][C][Branch1][C][C][=O][=C][Branch1][C][I][C][Branch1][=Branch1][C][=Branch1][C][=O][O][=C][Ring1][#C][I]

The molecule is a member of the class of benzoic acids that is benzoic acid having iodo substituents at the 2-, 4- and 6-positions and acetamido substituents at the 3- and 5-positions. It is used, mainly as its N-methylglucamine and sodium salts, as an X-ray contrast medium in gastrointestinal studies, angiography, and urography. It has a role as a radioopaque medium, an environmental contaminant and a xenobiotic. It is an organoiodine compound, a member of benzoic acids and a member of acetamides. It is a conjugate acid of an amidotrizoic acid anion.

SMILES: CC(=O)Nc1c(I)c(NC(C)=O)c(I)c(C(=O)O)c1I
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][C@H1][C][Branch1][=Branch1][C][=Branch1][C][=O][O][=C][C@@H1][C][C][Branch1][C][C][Branch1][C][C][C][C@@][Ring1][S][Ring1][#Branch1][Ring1][=N]

The molecule is a tricyclic sesquiterpenoid that is pentalenene in which the 13-methyl group is oxidsed to the carboxylic acid. It has a role as a metabolite. It is a sesquiterpenoid, a carbotricyclic compound and an alpha,beta-unsaturated monocarboxylic acid. It derives from a pentalenene. It is a conjugate acid of a 1-deoxypentalenate.

SMILES: CC1CCC2C(C(=O)O)=CC3CC(C)(C)CC132
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][=Branch2][N][O][C@@H1][C@H1][Branch1][C][O][C@@H1][Branch2][Branch2][Branch1][O][C@H1][O][C@H1][Branch2][=Branch1][P][C][O][C@H1][O][C@H1][Branch2][Branch1][N][C][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][Ring1][C][O][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@@H1][Ring1][#Branch2][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][C][O][C@@H1][Ring2][Ring2][O][O][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@@H1][Ring2][Branch1][=Branch1][O][C@H1][Branch1][C][O][C@@H1][Branch1][C][O][C@@H1][Ring2][Branch1][P][O][C@@H1][Branch1][C][O][C@@H1][Branch1][C][O][C@@H1][Ring2][=Branch1][O][O]

The molecule is a hexasaccharide derivative consisting of 1D-myo-inositol carrying at O-2 an alpha-D-mannosyl residue and at O-6 an alpha-D-mannosyl-(1->2)-alpha-D-mannosyl-(1->2)-alpha-D-mannosyl-(1->6)-alpha-D-mannosyl-(1->6)-alpha-D-mannosyl pentasaccharide chain. It derives from a myo-inositol.

SMILES: OCC1OC(OC2C(OC3C(OCC4OC(OCC5OC(OC6C(O)C(O)C(O)C(OC7OC(CO)C(O)C(O)C7O)C6O)C(O)C(O)C5O)C(O)C(O)C4O)OC(CO)C(O)C3O)OC(CO)C(O)C2O)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][O][C][=C][Branch1][C][O][C][Branch1][C][C][=C][Branch2][Ring1][Branch1][C][/C][=C][Branch1][C][\C][C][C][C][C][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][Ring2][Ring1][Branch2][=O]

The molecule is a member of the class of 2-pyranones that is 2H-pyran-2-one substituted by a methoxy group at position 3, a hydroxy group at position 4, a methyl group at position 5 and a (2E)-3-methyl-9-phenylnon-2-en-1-yl group at position 6. Isolated from the marine sponge of the genus Plakortis, it exhibits cytotoxicity against human promyeloid leukemic HL-60 cells. It has a role as a metabolite and an antineoplastic agent. It is a member of 2-pyranones, an ether and a polyketide.

SMILES: COc1c(O)c(C)c(CC=C(C)CCCCCCc2ccccc2)oc1=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@@H1][C][C][=Branch1][C][=O][C][=C][C][C@@][Ring1][Branch2][Branch1][C][O][/C][=C][\C][=C][C][=C][C][=C][Ring1][=Branch1]

The molecule is a cyclic ketone that is cyclohept-2-en-1-one substituted by a hydroxy group at position 5, a methoxy group at position 6 and a 2-phenylethenyl group at position 5 (the 5R,6R stereoisomers). Isolated from the rootwood of Aeschynomene mimosifolia, it exhibits cytotoxic towards human cancer cell lines. It has a role as a metabolite. It is an enone, an ether, a tertiary alcohol, a member of styrenes and a cyclic ketone.

SMILES: COC1CC(=O)C=CCC1(O)C=Cc1ccccc1
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][=P][Branch1][C][O][Branch1][C][O][O][C][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C][O]

The molecule is an alditol 5-phosphate and an arabinitol phosphate. It derives from a L-arabinitol and a D-arabinitol. It is a conjugate acid of a D-arabinitol 1-phosphate(2-).

SMILES: O=P(O)(O)OCC(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>

[C][C][=C][N][Branch2][Branch1][C][C@H1][C][C@H1][Branch1][C][O][C@@H1][Branch2][Ring2][Ring2][C][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O][C@@H1][C][C@@H1][Branch1][C][O][C][=Branch1][C][=O][C@@H1][Branch1][C][C][O][Ring1][=Branch2][O][Ring2][Ring1][=Branch2][C][=Branch1][C][=O][NH1][C][Ring2][Ring1][S][=O]

The molecule is a dTDP-sugar having 4-dehydro-2,6-dideoxy-alpha-D-glucose as the sugar component. It has a role as a bacterial metabolite. It is a dTDP-sugar and a secondary alpha-hydroxy ketone. It derives from a dTDP-D-glucose. It is a conjugate acid of a dTDP-4-dehydro-2,6-dideoxy-alpha-D-glucose(2-).

SMILES: Cc1cn(C2CC(O)C(COP(=O)(O)OP(=O)(O)OC3CC(O)C(=O)C(C)O3)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][C][C][C@H1][Branch1][C][O][/C][=C][/C][=C][\C][=C][\C][=C][\C@@H1][O][C@H1][Ring1][Ring1][C][C][C][C][=Branch1][C][=O][O]

The molecule is an oxylipin that is the (5S,6S)-epoxy-(15S)-hydroxy derivative of 7E,9E,11Z,13E-icosa-7,9,11,13-tetraenoic acid. It has a role as a metabolite. It is a polyunsaturated fatty acid, an oxylipin and a long-chain fatty acid.

SMILES: CCCCCC(O)C=CC=CC=CC=CC1OC1CCCC(=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][Branch1][C][O][C][#C][C][#C][C][Branch1][C][C][Branch1][C][O][C][C]

The molecule is an acetylenic compound that is deca-4,6-diyne substituted by methyl groups at positions 3 and 8 and hydroxy groups at positions 3 and 8 respectively. It has a role as a metabolite. It is an acetylenic compound and a diol.

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

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

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

[O][=C][Branch1][C][O-1][C@H1][Branch1][C][O][C][=Branch1][C][=O][C][O]

The molecule is the conjugate base of 3-dehydro-L-threonic acid; major species at pH 7.3. It is a hydroxy monocarboxylic acid anion and a 3-oxo monocarboxylic acid anion. It is a conjugate base of a (R)-2,4-dihydroxy-3-oxobutanoic acid. It is an enantiomer of a (S)-2,4-dihydroxy-3-oxobutanoate.

SMILES: O=C([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>

[C][C][/C][=C][\C][/C][=C][\C][/C][=C][\C][/C][=C][\C][/C][=C][\C][C][C][C][C][C][=Branch1][C][=O][O][C@H1][Branch2][Ring1][Branch2][C][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][/C][=C][\C][C][C][C][C][C][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C][N+1][Branch1][C][C][Branch1][C][C][C]

The molecule is a phosphatidylcholine 40:6 in which the acyl groups at C-1 and C-2 are (11Z)-octadecenoyl and (7Z,10Z,13Z,16Z,19Z)-docosapentaenoyl respectively. It derives from a cis-vaccenic acid and a (7Z,10Z,13Z,16Z,19Z)-docosapentaenoic acid.

SMILES: CCC=CCC=CCC=CCC=CCC=CCCCCCC(=O)OC(COC(=O)CCCCCCCCCC=CCCCCCC)COP(=O)([O-])OCC[N+](C)(C)C
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

[C][O][C][=Branch1][C][=O][/C][=C][Branch1][C][\C][C][C][/C][=C][Branch1][C][\C][C][C][C@H1][Branch1][#Branch2][O][P][=Branch1][C][=O][Branch1][C][O][O][C][Branch1][C][C][Branch1][C][C][O]

The molecule is a sesquiterpenoid, a methyl ester, a tertiary alcohol, an enoate ester and a phosphate monoester.

SMILES: COC(=O)C=C(C)CCC=C(C)CCC(OP(=O)(O)O)C(C)(C)O