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

The molecule is an oligopeptide composed of L-asparagine, L-proline, L-valine, L-valine, L-histidine, L-phenylalanine, L-phenylalanine, L-lysine, L-asparagine, L-isoleucine, L-valine, L-threonine, L-proline, L-arginine, L-threonine, L-proline, L-proline, L-proline and L-serine joined in sequence by peptide linkages.

SMILES: CCC(C)C(NC(=O)C(CC(N)=O)NC(=O)C(CCCCN)NC(=O)C(Cc1ccccc1)NC(=O)C(Cc1ccccc1)NC(=O)C(Cc1c[nH]cn1)NC(=O)C(NC(=O)C(NC(=O)C1CCCN1C(=O)C(N)CC(N)=O)C(C)C)C(C)C)C(=O)NC(C(=O)NC(C(=O)N1CCCC1C(=O)NC(CCCNC(=N)N)C(=O)NC(C(=O)N1CCCC1C(=O)N1CCCC1C(=O)N1CCCC1C(=O)NC(CO)C(=O)O)C(C)O)C(C)O)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][C][=Branch1][C][=O][N][C@@H1][C@@H1][Branch1][C][O][C@H1][Branch2][Ring2][#C][O][C@@H1][O][C@H1][Branch2][Ring1][O][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][N][C][Branch1][C][C][=O][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring2][Ring1][Branch2][O][C@@H1][Branch1][Ring1][C][O][O][C@H1][Ring2][Ring2][Ring1][O]

The molecule is an amino trisaccharide consisting of N-acetyl-alpha-D-glucosamine, beta-D-galactose and N-acetyl-beta-D-glucosamine residues linked sequentially (1->6) and (1->4). It has a role as an epitope. It is an amino trisaccharide and a glucosamine oligosaccharide.

SMILES: CC(=O)NC1C(O)OC(CO)C(OC2OC(COC3OC(CO)C(O)C(O)C3NC(C)=O)C(O)C(O)C2O)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][Branch2][Ring1][Ring2][N][C@@H1][Branch1][O][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][C][=Branch1][C][=O][N][C][=Branch1][C][=O][N][Branch1][C][C][C][C@H1][Ring1][#Branch1][C][=Branch1][C][=O][O]

The molecule is a member of the class of imidazolidines that is imidapril in which the ethyl ester group has been hydrolysed to the corresponding acid group. It is the active metabolite of imidapril used to treat hypertension. It has a role as an EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor, an antihypertensive agent and a drug metabolite. It is a dipeptide, a member of imidazolidines, a secondary amino compound, a dicarboxylic acid and a N-acylurea. It derives from an imidapril.

SMILES: CC(NC(CCc1ccccc1)C(=O)O)C(=O)N1C(=O)N(C)CC1C(=O)O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

[C][O][C][=Branch1][C][=O][C][=C][C][Branch1][C][O][=C][C][Branch1][Ring1][O][C][=C][Ring1][=Branch2][C][=Branch1][C][=O][C][=C][Branch1][C][O][C][Branch1][C][Cl][=C][Branch1][C][C][C][Branch1][C][Cl][=C][Ring1][#Branch2][O]

The molecule is a member of the class of benzophenones that is sulochrin in which the hydrogens at positions 3 and 5 are substituted by chloro groups. It is isolated from several Aspergillus species. It has a role as an Aspergillus metabolite. It is a member of phenols, a methyl ester, a member of benzophenones, a dichlorobenzene and an aromatic ether. It derives from a sulochrin. It is a conjugate acid of a dihydrogeodin(2-).

SMILES: COC(=O)c1cc(O)cc(OC)c1C(=O)c1c(O)c(Cl)c(C)c(Cl)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][=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 an unsaturated fatty acyl-CoA that results from the formal condensation of the thiol group of coenzyme A with the carboxy group of (9Z)-pentadecenoic acid. It is a long-chain fatty acyl-CoA, an 11,12-saturated fatty acyl-CoA and a monounsaturated fatty acyl-CoA. It is a conjugate acid of a (9Z)-pentadecenoyl-CoA(4-).

SMILES: CCCCCC=CCCCCCCCC(=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>

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

The molecule is a spiroketal resulting from the formal condensation of the keto group of cyclohexanone with the hydroxy groups of 1-(2,3-dihydroxypropyl)guanidine. A postganglionic adrenergic blocking agent formerly used (generally as the sulfate salt) for the management of hypertension, it has been largely superseded by other drugs less likely to cause orthostatic hypotension (dizzy spells on standing up or stretching). It has a role as an antihypertensive agent and an adrenergic antagonist. It is a member of guanidines and a spiroketal. It is a conjugate base of a guanadrel(1+).

SMILES: NC(N)=NCC1COC2(CCCCC2)O1
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is a sesquiterpene lactone that is isosecotanapartholide in which the hydroxy group at position 3 is replaced by a methoxy group. Isolated from Artemisia iwayomogi and Tanacetum cilicicum, it acts as an inhibitor of nitric oxide synthase. It has a role as a metabolite and an EC 1.14.13.39 (nitric oxide synthase) inhibitor. It is a butan-4-olide, an enone, a methyl ketone, a sesquiterpene lactone and an ether.

SMILES: C=C1C(=O)OC(C2=C(C)C(OC)CC2=O)C1CCC(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>

[O][=C][Branch2][Branch1][C][C][O][C][=C][C][=C][Branch2][Ring2][Ring2][/C][=C][/C][=C][C][=C][N][Ring1][Branch1][B-1][Branch1][C][F][Branch1][C][F][N+1][=C][Branch1][Branch2][C][=C][C][=C][S][Ring1][Branch1][C][=C][C][Ring1][#Branch2][=C][Ring1][S][C][=C][Ring2][Ring1][O][N][C][C][C][C][C][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C][C][C][Ring1][=Branch1][=O]

The molecule is a pyrrolidinone and a BODIPY dye. It has a role as a fluorochrome. It derives from a 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene.

SMILES: O=C(COc1ccc(C=Cc2ccc3n2[B-](F)(F)[N+]2=C(c4cccs4)C=CC2=C3)cc1)NCCCCCC(=O)ON1C(=O)CCC1=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][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 tetraanion of 2-methylcrotonoyl-CoA arising from deprotonation of phosphate and diphosphate functions. It has a role as a human metabolite. It is a conjugate base of a 2-methylcrotonoyl-CoA.

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

The molecule is a homodetic cyclic decapeptide consisting of D-Phe, L-Pro, L-Phe, D-Phe, L-Asn, L-Gln, L-Tyr, L-Val, L-Orn, and L-Leu residues coupled in sequence and cyclised head-to-tail. It has a role as an antibacterial agent and a bacterial metabolite. It is a homodetic cyclic peptide, a peptide antibiotic and a macrocycle.

SMILES: CC(C)CC1NC(=O)C(CCCN)NC(=O)C(C(C)C)NC(=O)C(Cc2ccc(O)cc2)NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(Cc2ccccc2)NC(=O)C(Cc2ccccc2)NC(=O)C2CCCN2C(=O)C(Cc2ccccc2)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][N][C][=Branch1][C][=O][NH1][C][=N][N][=C][N][=C][Ring1][=Branch1][C][Ring1][O][=O]

The molecule is a pyrimidotriazine that is 6-methyl-5,6,7,8-tetrahydropyrimido[5,4-e][1,2,4]triazine with oxo groups at positions 5 and 6. It has a role as an antineoplastic agent, an antimicrobial agent and a bacterial metabolite. It is a pyrimidotriazine and a carbonyl compound. It derives from a 1,6-didemethyltoxoflavin.

SMILES: Cn1c(=O)[nH]c2nncnc2c1=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][=Branch1][C][=O][C][=C][O][C@@H1][Branch1][C][O][C@H1][C@@H1][Ring1][#Branch1][C][C][C@@H1][Ring1][Branch1][C]

The molecule is an iridoid monoterpenoid that is the methyl ester of 7-deoxyloganetic acid. It has a role as a plant metabolite. It is a cyclopentapyran, an iridoid monoterpenoid, a methyl ester and a lactol. It derives from a 7-deoxyloganetic acid.

SMILES: COC(=O)C1=COC(O)C2C(C)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>

[Cl-1].[Cl-1].[Zn+2]

The molecule is a compound of zinc and chloride ions in the ratio 1:2. It exists in four crystalline forms, in each of which the Zn(2+) ions are trigonal planar coordinated to four chloride ions. It has a role as a Lewis acid, a disinfectant, an astringent and an EC 5.3.3.5 (cholestenol Delta-isomerase) inhibitor. It is an inorganic chloride and a zinc molecular entity.

SMILES: [Cl-].[Cl-].[Zn+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][O][C][=C][C][Branch1][Ring1][O][C][=C][O][C][=C][C][Branch1][C][O][=C][Branch1][Branch2][C][C][=C][Branch1][C][C][C][C][Branch1][C][O][=C][Ring1][=N][C][=Branch1][C][=O][C][Ring2][Ring1][C][=C][Ring2][Ring1][Branch2][C][C][=C][Branch1][C][C][C]

The molecule is a member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 1 and 3, methoxy groups at positions 5 and 7 and two isoprenyl groups at positions 2 and 8 respectively. It is isolated from Cratoxylum Sumatranum and exhibits cytotoxicity towards the KB (human oral epidermoid) cancer cell line It has a role as a metabolite and an antineoplastic agent. It is a polyphenol, an aromatic ether and a member of xanthones.

SMILES: COc1cc(OC)c2oc3cc(O)c(CC=C(C)C)c(O)c3c(=O)c2c1CC=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][C][C][C][C][/C][=C][\C][/C][=C][\C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C][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][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][/C][=C][\C][/C][=C][\C][C][C][C][C]

The molecule is a triacyl-sn-glycerol in which the acyl groups at positions 1, 2 and 3 are specified as oleoyl, linoleoyl and linoleoyl respectively. It has a role as a mouse metabolite. It is a triacyl-sn-glycerol and a linoleoyl containing 1,2,3-triacyl-sn-glycerol. It derives from an oleic acid and a linoleic acid.

SMILES: CCCCCC=CCC=CCCCCCCCC(=O)OCC(COC(=O)CCCCCCCC=CCCCCCCCC)OC(=O)CCCCCCCC=CCC=CCCCCC