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-1][C][=C][C][Branch1][C][Br][=C][Branch1][C][O-1][C][Branch1][C][Br][=C][Ring1][=Branch2]

The molecule is dianon of 3,5-dibromo-4-hydroxybenzoic acid arising from deprotonation of both the carboxy and phenolic functions. It is a monocarboxylic acid anion and a phenolate anion. It is a conjugate base of a 3,5-dibromo-4-hydroxybenzoic acid.

SMILES: O=C([O-])c1cc(Br)c([O-])c(Br)c1
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

[C][C][Branch1][C][C][C][=C][C][Branch2][Ring1][#Branch1][/C][=C][Branch1][Ring1][\C][#N][C][=Branch1][C][=O][N][C][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][=C][C][Branch1][=Branch1][C][Branch1][C][C][C][=C][Ring2][Ring1][=Branch2][O]

The molecule is a monocarboxylic acid amide obtained by formal condensation of the carboxy group of (2E)-2-cyano-3-[4-hydroxy-3,5-di(propan-2-yl)phenyl]prop-2-enoic acid with the amino group of 3-phenylpropylamine. It has a role as a vascular endothelial growth factor receptor antagonist. It is an enamide, a member of phenols, a nitrile, a monocarboxylic acid amide and a secondary carboxamide.

SMILES: CC(C)c1cc(C=C(C#N)C(=O)NCCCc2ccccc2)cc(C(C)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][C][C][C][C][C@H1][Branch1][C][O][/C][=C][/C@H1][O][C][=Branch1][C][=O][C][C@H1][Branch1][C][O][C@@H1][Ring1][Branch2][C][/C][=C][\C][C][C][C][=Branch1][C][=O][O]

The molecule is a thromboxane obtained by formal oxidation of the hemiacetal hydroxy function of thromboxane B2. It has a role as a human metabolite. It derives from a thromboxane B2. It is a conjugate acid of an 11-dehydro-thromboxane B2(1-).

SMILES: CCCCCC(O)C=CC1OC(=O)CC(O)C1CC=CCCCC(=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@@H1][C][C][C@][Branch1][=Branch1][C][=Branch1][C][=O][O][C][C][C@][Branch1][C][C][C@H1][Branch2][Ring2][Branch1][C][C][C@@H1][C@@][Branch1][C][C][C][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@@][Branch1][C][C][Branch1][Ring1][C][O][C@@H1][Ring1][N][C][C][C@][Ring1][S][Ring2][Ring1][Branch1][C][C@@H1][Ring2][Ring1][S][Ring2][Ring1][=N]

The molecule is a pentacyclic triterpenoid that is lup-20(29)-en-28-oic acid substituted by hydroxy groups at positions 2, 3 and 23 respectively (the 2alpha,3beta-stereoisomer). It has been isolated from the leaves of Rosa laevigata. It has a role as a plant metabolite. It is a pentacyclic triterpenoid, a triol and a hydroxy monocarboxylic acid. It derives from a hydride of a lupane.

SMILES: C=C(C)C1CCC2(C(=O)O)CCC3(C)C(CCC4C5(C)CC(O)C(O)C(C)(CO)C5CCC43C)C12
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

[C][C][C][C][/C][=C][\C][C][C][C][C][C][C][C][C][C][C][C][O]

The molecule is a long-chain fatty alcohol that is stearyl alcohol which has been dehydrogenated to introduce a cis double bond between positions 13 and 14.

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

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

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

[C][C][=Branch1][C][=O][N][C@@H1][C@H1][Branch2][=Branch2][Branch2][O][C@H1][C@@H1][Branch1][C][O][C@@H1][Branch1][C][C][O][C][Branch2][#Branch1][#C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][\C][C][C][/C][=C][Branch1][C][\C][C][C][C][=C][Branch1][C][C][C][C@@H1][Ring2][=Branch1][Branch2][N][C][Branch1][C][C][=O][O][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C@@H1][Branch1][C][O][C@@H1][Ring2][#Branch1][#Branch1][N][C][Branch1][C][C][=O]

The molecule is a triply-charged organophosphate oxoanion resulting from deprotonation of the diphosphate and carboxy groups of 2,3-diacetamido-2,3-dideoxy-beta-D-mannosyl-(1->3)-N-acetyl-D-fucosaminyl undecaprenyl diphosphate.

SMILES: CC(=O)NC1C(OC2C(O)C(C)OC(OP(=O)([O-])OP(=O)([O-])OCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)C)C2NC(C)=O)OC(C(=O)[O-])C(O)C1NC(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>

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

The molecule is an N-acyl-1-O-beta-D-glucosyl-4-hydroxy-15-methylhexadecasphinganine in which the acyl group has 18 carbons and 0 double bonds. It derives from a 15-methylhexadecaphytosphingosine.

SMILES: CCCCCCCCCCCCCCCCCC(=O)NC(COC1OC(CO)C(O)C(O)C1O)C(O)C(O)CCCCCCCCCCC(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][C][=C][C][C][=C][Branch1][=N][C][=C][C][=C][Branch1][C][O][C][=C][Ring1][#Branch1][O][O][C][=C][C][=Branch1][=C][=C][C][Branch1][C][O][=C][Ring1][#Branch1][C][Ring2][Ring1][Ring1][=O][O][C][Branch1][C][C][Branch1][C][C][C][=C][Ring1][=C]

The molecule is an extended flavonoid that is flavone substituted by hydroxy groups at positions 5, 2' and 4', a prenyl group at position 3 and a 2,2-dimethyl pyran group across positions 7 and 8. It has a role as a plant metabolite and an antineoplastic agent. It is a trihydroxyflavone and an extended flavonoid.

SMILES: CC(C)=CCc1c(-c2ccc(O)cc2O)oc2c3c(cc(O)c2c1=O)OC(C)(C)C=C3
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][=S][=Branch1][C][=O][Branch1][C][O][C][C@H1][O][C][Branch1][C][O][Branch1][Ring1][C][O][C@@H1][Branch1][C][O][C@@H1][Ring1][=Branch2][O]

The molecule is a carbohydrate sulfonate that is D-fructofuranose in which the hydroxy group at at position 6 is replaced by a sulfo group. It has a role as a metabolite. It derives from a D-fructofuranose. It is a conjugate acid of a 6-deoxy-6-sulfo-D-fructofuranose(1-).

SMILES: O=S(=O)(O)CC1OC(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][O][C][C@H1][Branch1][C][C][N][Branch1][#Branch1][C][=Branch1][C][=O][C][Cl][C][C][Branch1][C][C][=C][S][C][=Ring1][=Branch1][C]

The molecule is the (S)-enantiomer of 2-chloro-N-(2,4-dimethylthiophen-3-yl)-N-[(2S)-1-methoxypropan-2-yl]acetamide. It is the active enantiomer of dimethenamid, a herbicide applied to the soil to control various broad-leaved weeds and grasses. It has a role as a herbicide, an agrochemical and an antimitotic. It is an enantiomer of a (R)-dimethenamid.

SMILES: COCC(C)N(C(=O)CCl)c1c(C)csc1C
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][=N][C][=C][Branch2][Ring1][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N+1][Branch1][C][C][Branch1][C][C][C][NH1][Ring1][=C]

The molecule is an amino acid betaine that is ergothioneine in which the hydrogen attached to the sulfur is replaced by a methyl group. It has been isolated from the deepwater (500-1,600 m) marine sponge Macandrewia azorica. It has a role as a marine metabolite and an animal metabolite. It is an amino-acid betaine, a member of imidazoles and a methyl sulfide. It derives from an ergothioneine.

SMILES: CSc1ncc(CC(C(=O)[O-])[N+](C)(C)C)[nH]1
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][C][C][=C][C][Branch1][C][Cl][=C][Branch1][C][O][C][=C][Ring1][Branch2][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Ring2][Ring1][Ring1]

The molecule is a benzazepine that is 2,3,4,5-tetrahydro-3-benzazepine bearing a phenyl substituent at position 1, a methyl substituent at position 3, a chloro substituent at position 7 and a hydroxy substituent at position 8. It has a role as a dopaminergic antagonist. It is a benzazepine, an organochlorine compound and a tertiary amino compound.

SMILES: CN1CCc2cc(Cl)c(O)cc2C(c2ccccc2)C1
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is a 1,2-diacyl-3-alpha-D-galactosyl-sn-glycerol in which the acyl groups at positions 1 and 2 are palmitoyl (hexadecanoyl) and cis-vaccenoyl [(11Z)-octadec-11-enoyl] respectively.

SMILES: CCCCCCC=CCCCCCCCCCC(=O)OC(COC(=O)CCCCCCCCCCCCCCC)COC1OC(CO)C(O)C(O)C1O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is a tripeptide composed of glycine, L-alanine and L-alanine residues joined in sequence by peptide linkages. It derives from a L-alanine and a glycine.

SMILES: CC(NC(=O)C(C)NC(=O)CN)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][Branch1][C][O][C][C][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O]

The molecule is a dicarboxylic acid consisting of succinic acid carrying a 2-benzyl substituent. It has a role as a bacterial xenobiotic metabolite. It derives from a succinic acid. It is a conjugate acid of a 2-benzylsuccinate(2-) and a (R)-2-benzylsuccinate.

SMILES: O=C(O)CC(Cc1ccccc1)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>

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

The molecule is an anthemis glycoside that is found in the cyanogenic achenes of Anthemis altissima. It is an anthemis glycoside, an O-acyl carbohydrate, a disaccharide derivative and a nitrile. It derives from a trans-cinnamic acid.

SMILES: N#CC(OC1OC(COC2OCC(OC(=O)C=Cc3ccc(OC4OC(CO)C(O)C(O)C4O)cc3)C(O)C2O)C(O)C(O)C1O)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][C][C][/C][=C][/C@@H1][Branch1][C][C][C@H1][C][C][C@@H1][C@][Ring1][Branch1][Branch1][C][C][C][C][C@H1][C@@][Ring1][#Branch1][C][C@@H1][Branch1][C][O][C@@][Branch1][C][O][C][C@@H1][Branch1][#Branch2][O][S][=Branch1][C][=O][=Branch1][C][=O][O-1][C][C][C@][Ring1][P][Ring1][N][C][O][Ring2][Ring1][C].[Na+1]

The molecule is an organic sodium salt that is monosodium salt of eurysterol B sulfonic acid. Isolated from an undescribed marine sponge of the genus Euryspongia collected in Palau, it is cytotoxic and exhibits antifungal activity against both amphotericin B-resistant and wild-type strains of Candida albicans. It has a role as a metabolite, an antineoplastic agent and an antifungal agent. It contains a eurysterol B(1-). It derives from a hydride of a 5alpha-cholestane.

SMILES: CC(C)CC=CC(C)C1CCC2C1(C)CCC1C23CC(O)C2(O)CC(OS(=O)(=O)[O-])CCC12CO3.[Na+]
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][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Branch1][C][O-1][=C][Ring1][N][C][C][O]

The molecule is an organic anion that is the monoanion obtained by the deprotonation of the 2-hydroxy group of 2-hydroxy-3-(2-hydroxyethyl)naphthalene-1,4-dione. It is a conjugate base of a 2-hydroxy-3-(2-hydroxyethyl)naphthalene-1,4-dione.

SMILES: O=C1C(=O)c2ccccc2C([O-])=C1CCO