guojianz/MolReasoner huggingface dataset:
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is a compound comprising a benzene ring core carrying a carboxylic acid substituent. It has a role as an antimicrobial food preservative, an EC 3.1.1.3 (triacylglycerol lipase) inhibitor, an EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor, a plant metabolite, a human xenobiotic metabolite, an algal metabolite and a drug allergen. It is a conjugate acid of a benzoate.

SMILES: O=C(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][C][=Branch1][C][=O][C@H1][C][C][C@H1][C@@H1][C][C][C][C][C][Branch1][C][O][C][C][C@][Ring1][#Branch1][Branch1][C][C][C@H1][Ring1][N][C][C][C@][Ring2][Ring1][Ring1][Ring1][S][C]

The molecule is a C21-steroid that is pregnane substituted by an oxo group at position 20 and a hydroxy group at position 3. It is a 20-oxo steroid, a 3-hydroxy steroid and a C21-steroid. It derives from a hydride of a pregnane.

SMILES: CC(=O)C1CCC2C3CCC4CC(O)CCC4(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][S][C][C][=Branch1][C][=O][O]

The molecule is a sulfur-containing carboxylic consisting of thioglycolic acid carrying an S-methyl substituent. It has a role as a xenobiotic metabolite. It is a sulfur-containing carboxylic acid, a monocarboxylic acid and a methyl sulfide. It derives from a thioglycolic acid. It is a conjugate acid of a (methylthio)acetate.

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

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

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

[C][C][C][C][C][C][C][C][C][C][C][C][C][/C][=C][/C@@H1][Branch1][C][O][C@H1][Branch2][=N][Branch1][C][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@@H1][Branch2][O][#C][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@H1][Branch2][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][N][C][Branch1][C][C][=O][C@H1][Branch2][Branch2][P][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@@H1][Branch1][C][O][C@H1][Branch2][#Branch1][#Branch1][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@H1][Branch2][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][N][C][Branch1][C][C][=O][C@H1][Branch2][Ring2][=Branch2][O][C@][Branch1][=Branch1][C][=Branch1][C][=O][O][C][C@H1][Branch1][C][O][C@@H1][Branch1][#Branch1][N][C][Branch1][C][C][=O][C@H1][Branch1][O][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C][O][O][Ring2][Ring1][Ring2][C@H1][Ring2][Ring2][N][O][C@H1][Ring2][Branch1][#Branch1][N][C][Branch1][C][C][=O][C@H1][Ring2][#Branch1][Ring1][O][C@H1][Branch1][C][O][C@H1][Ring2][#Branch1][=C][O][N][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 sialohexaosylceramide consisting of a branched heptasaccharide made up from one sialyl residue, two galactose residues, two N-acetylgalactosamine residues, one N-acetylglucosamine residue and a glucose residue at the reducing end attached to N-stearoylsphingosine via a beta-linkage.

SMILES: CCCCCCCCCCCCCC=CC(O)C(COC1OC(CO)C(OC2OC(CO)C(OC3OC(CO)C(O)C(O)C3NC(C)=O)C(OC3OC(CO)C(O)C(OC4OC(CO)C(OC5OC(CO)C(O)C(O)C5NC(C)=O)C(OC5(C(=O)O)CC(O)C(NC(C)=O)C(C(O)C(O)CO)O5)C4O)C3NC(C)=O)C2O)C(O)C1O)NC(=O)CCCCCCCCCCCCCCCCC
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

[C][=C][Branch1][C][C][C][=C][C][=C][Branch1][C][C][C][C][Ring1][#Branch1]

The molecule is a monoterpene that is cyclohexa-1,3-diene substituted at positions 1 and 4 by methyl and prop-1-en-2-yl groups respectively. It has a role as a plant metabolite, a human xenobiotic metabolite and a volatile oil component. It is a monoterpene and a cyclohexadiene. It derives from a p-menthane.

SMILES: C=C(C)C1=CC=C(C)CC1
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is an alicyclic ketone that is cyclohexanone in which the pro-S hydrogens at positions 2, 3, and 4 are substituted by methoxy, (2E)-6-methylhept-2-en-2-yl, and acetyl groups, respectively. It has a role as an angiogenesis inhibitor. It derives from a fumagalone.

SMILES: COC1C(=O)CCC(C(C)=O)C1C(C)=CCCC(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][=C][C][Branch2][Branch2][P][/C][=C][/C][=Branch1][C][=O][C][C][=Branch1][C][=O][/C][=C][/C][=C][C][=C][Branch2][#Branch1][Ring2][O][C@@H1][O][C@H1][Branch2][Branch1][S][C][O][C@@H1][O][C@H1][Branch2][Ring2][O][C][O][C@@H1][O][C@H1][Branch2][Ring1][=Branch1][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][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring2][Ring1][Branch1][O][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring2][Ring1][S][O][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring2][Ring2][O][O][C][Branch1][Ring1][O][C][=C][Ring2][Branch1][Branch1][=C][C][=C][Ring2][=Branch1][Ring2][O]

The molecule is a glycoside that is curcumin substituted by a beta-D-glucopyranosyl-(1->6)-beta-D-glucopyranosyl-(1->6)-beta-D-glucopyranosyl-(1->6)-beta-D-glucopyranoside group at position 4'. It has a role as a plant metabolite. It is a tetrasaccharide derivative, an enol, an enone and a glycoside. It derives from a curcumin.

SMILES: COc1cc(C=CC(=O)CC(=O)C=Cc2ccc(OC3OC(COC4OC(COC5OC(COC6OC(CO)C(O)C(O)C6O)C(O)C(O)C5O)C(O)C(O)C4O)C(O)C(O)C3O)c(OC)c2)ccc1O
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][C][C][C][NH3+1]

The molecule is an ammonium ion resulting from the protonation of the primary amino group of N-acetylcadaverine. The major microspecies at pH 7.3. It derives from a cadaverine(2+). It is a conjugate acid of a N-acetylcadaverine.

SMILES: CC(=O)NCCCCC[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][C][Branch1][C][C][Branch1][C][C][C][=C][N][=C][Branch2][Ring1][=Branch2][C][S][C][=C][N][=C][Branch1][=C][N][C][=Branch1][C][=O][C][C][C][O][C][C][Ring1][=Branch1][S][Ring1][=C][O][Ring2][Ring1][Branch1]

The molecule is a secondary carboxamide resulting from the formal condensation of the carboxy group of tetrahydro-2H-pyran-4-carboxylic acid with the amino group of 5-{[(5-tert-butyl-1,3-oxazol-2-yl)methyl]sulfanyl}-1,3-thiazol-2-amine. It is a CDK18 kinase inhibitor. It has a role as an EC 2.7.11.22 (cyclin-dependent kinase) inhibitor. It is a member of 1,3-oxazoles, a member of 1,3-thiazoles, an organic sulfide, a secondary carboxamide and a member of oxanes.

SMILES: CC(C)(C)c1cnc(CSc2cnc(NC(=O)C3CCOCC3)s2)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>

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

The molecule is an azaspiro compound that is 1,3,6,8-tetraazaspiro[4.4]non-6-ene which is substituted by oxo groups at positions 2, 4, and 9. Both enantiomers are highly mutagenic products resulting from the oxidation of guanine and 8-oxo-7,8-dihydroguanine in DNA by reactive oxygen species. It has a role as a mutagen. It derives from a hydantoin.

SMILES: NC1=NC2(NC(=O)NC2=O)C(=O)N1
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is an aromatic ether in which the oxygen atom is connected to a guaiacylglyceryl and a vanillyl group. It has been isolated from the stems of Sinocalamus affinis. It is a triol, an aromatic ether, a member of benzoic acids and a member of guaiacols. It derives from a (+)-(7S,8S)-guaiacylglycerol and a vanillic acid.

SMILES: COc1cc(C(O)C(CO)Oc2ccc(C(=O)O)cc2OC)ccc1O
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][=N][N][=C][Branch2][Ring2][=Branch2][S][C][C][=C][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C@@H1][Branch1][=C][N][C][=Branch1][C][=O][C][N][C][=N][N][=N][Ring1][Branch1][C@H1][Ring1][=C][S][C][Ring2][Ring1][Branch1][S][Ring2][Ring1][N]

The molecule is a first-generation cephalosporin compound having [(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl and (1H-tetrazol-1-ylacetyl)amino side-groups at positions 3 and 7 respectively. It has a role as an antibacterial drug. It is a cephalosporin, a member of thiadiazoles, a member of tetrazoles and a beta-lactam antibiotic allergen. It is a conjugate acid of a cefazolin(1-).

SMILES: Cc1nnc(SCC2=C(C(=O)O)N3C(=O)C(NC(=O)Cn4cnnn4)C3SC2)s1
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][=Branch1][C][=O][C][C][=Branch1][C][=O][S][C][C][N][C][=Branch1][C][=O][C][C][N][C][=Branch1][C][=O][C@H1][Branch1][C][O][C][Branch1][C][C][Branch1][C][C][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C@H1][O][C@@H1][Branch1][P][N][C][=N][C][=C][Branch1][C][N][N][=C][N][=C][Ring1][#Branch1][Ring1][#Branch2][C@H1][Branch1][C][O][C@@H1][Ring1][S][O][P][=Branch1][C][=O][Branch1][C][O-1][O-1]

The molecule is a 3-oxo-fatty acyl-CoA(4-) obtained by deprotonation of the phosphate and diphosphate OH groups of (11Z)-3-oxooctadecenoyl-CoA; major species at pH 7.3. It is a conjugate base of an (11Z)-3-oxooctadecenoyl-CoA.

SMILES: CCCCCCC=CCCCCCCCC(=O)CC(=O)SCCNC(=O)CCNC(=O)C(O)C(C)(C)COP(=O)([O-])OP(=O)([O-])OCC1OC(n2cnc3c(N)ncnc32)C(O)C1OP(=O)([O-])[O-]
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

[C][C][=Branch1][C][=O][C][NH3+1]

The molecule is an ammonium ion that is the conjugate acid of aminoacetone, arising from protonation of the primary amino group; major species at pH 7.3. It has a role as a human metabolite and a Saccharomyces cerevisiae metabolite. It is an organic cation and an ammonium ion derivative. It is a conjugate acid of an aminoacetone.

SMILES: CC(=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][NH1+1][Branch1][C][C][C][C][C][S][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][=Branch1][C][=O][/C][=C][/C][=C][C][=C][C][=C][Ring1][=Branch1]

The molecule is an ammonium ion derivative that is the conjugate acid of cinanserin, obtained by the protonation of the tertiary amino group. It is the major microspecies at pH 7.3. It is a conjugate acid of a cinanserin.

SMILES: C[NH+](C)CCCSc1ccccc1NC(=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>

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

The molecule is a butanone derivative having two hydroxy substituents at the 1-position and an ethoxy substituent at the 3-position. It has a role as an antiinfective agent. It is a butanone and an aldehyde hydrate.

SMILES: CCOC(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@H1][Branch1][P][C][C][C][C][C][C][C][C][C][/C][=C][/C][=Branch1][C][=O][O][O][C@@H1][O][C@@H1][Branch1][C][C][C@H1][Branch1][C][O][C][C@H1][Ring1][Branch2][O]

The molecule is an (omega-1)-hydroxy fatty acid ascaroside obtained by formal condensation of the alcoholic hydroxy group of (2E,13R)-13-hydroxytetradec-2-enoic acid with ascarylopyranose (the alpha anomer). It is a metabolite of the nematode Caenorhabditis elegans. It has a role as a Caenorhabditis elegans metabolite. It is an alpha,beta-unsaturated monocarboxylic acid and an (omega-1)-hydroxy fatty acid ascaroside. It derives from a (2E,13R)-13-hydroxytetradec-2-enoic acid. It is a conjugate acid of an ascr#23(1-).

SMILES: CC(CCCCCCCCCC=CC(=O)O)OC1OC(C)C(O)CC1O