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>

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

The molecule is the carbamate ester of the primary hydroxy group of chlorphenesin. A centrally acting skeletal muscle relaxant, it is used in the symptomatic treatment of painful muscle spasm. It has a role as a muscle relaxant. It is a carbamate ester, a member of monochlorobenzenes and a secondary alcohol. It derives from a chlorphenesin and a carbamic acid.

SMILES: NC(=O)OCC(O)COc1ccc(Cl)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>

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

The molecule is an alpha-D-galactoside having a 6-bromo-2-naphthyl substituent at the anomeric position. It has a role as a chromogenic compound. It is an alpha-D-galactoside and an organobromine compound. It derives from a 6-bromo-2-naphthol.

SMILES: OCC1OC(Oc2ccc3cc(Br)ccc3c2)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][=Branch1][C][=O][N][C@H1][C][Branch1][C][O][O][C@H1][Branch1][Ring1][C][O][C@@H1][Branch2][Ring2][=Branch2][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@H1][Branch1][C][O][C@H1][Branch2][Ring1][Ring2][O][C@@H1][O][C@@H1][Branch1][C][C][C@@H1][Branch1][C][O][C@@H1][Branch1][C][O][C@@H1][Ring1][=Branch2][O][C@H1][Ring2][Ring1][Ring2][O][C@@H1][Ring2][Ring1][#C][O][C@@H1][O][C@@H1][Branch1][C][C][C@@H1][Branch1][C][O][C@@H1][Branch1][C][O][C@@H1][Ring1][=Branch2][O]

The molecule is an amino tetrasaccharide consisting that is alpha-L-fucopyranosyl-(1->3)-beta-D-galactopyranosyl-(1->4)]-2-acetamido-2-deoxy-D-glucopyranose in which the 2-acetaminoglucopyranose moiety has been glycosylated at position 3 by an alpha-L-fucopyranosyl group. It derives from an alpha-L-Fucp-(1->3)-[beta-D-Galp-(1->4)]-D-GlcpNAc.

SMILES: CC(=O)NC1C(O)OC(CO)C(OC2OC(CO)C(O)C(OC3OC(C)C(O)C(O)C3O)C2O)C1OC1OC(C)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][=C][C][=C][Branch2][Ring1][Ring1][C][=N][N][=C][Branch1][#Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][Cl][O][Ring1][N][S][Ring1][P]

The molecule is a 1,3,4-oxadiazole substituted by a 2-chlorophenyl group at position 2 and a 5-methyl-2-thienyl group at position 5. It is a member of thiophenes, a member of 1,3,4-oxadiazoles and a member of monochlorobenzenes.

SMILES: Cc1ccc(-c2nnc(-c3ccccc3Cl)o2)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>

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

The molecule is a Glu-Cys-Gly tripeptide derivative of glutathione containing a 2-hydroxyethyl substituent on the S of the Cys residue. It derives from a glutathione.

SMILES: NC(CCC(=O)NC(CSCCO)C(=O)NCC(=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>

[C][C@][C][C][C@H1][Branch1][#Branch2][O][S][=Branch1][C][=O][=Branch1][C][=O][O-1][C][C@@H1][Ring1][O][C][C][C@@H1][C@@H1][Ring1][#C][C][C][C@][Branch1][C][C][C@@H1][Branch1][#Branch2][O][S][=Branch1][C][=O][=Branch1][C][=O][O-1][C][C][C@@H1][Ring1][#C][Ring1][O]

The molecule is a 5alpha-androstan-3beta,17alpha-diol disulfate anion obtained by deprotonation of both sulfo groups of 5alpha-androstan-3beta,17beta-diol disulfate. It is a conjugate base of a 5alpha-androstane-3beta,17beta-diol disulfate.

SMILES: CC12CCC(OS(=O)(=O)[O-])CC1CCC1C2CCC2(C)C(OS(=O)(=O)[O-])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>

[Cr]

The molecule is a chromium group element atom that has atomic number 24. It has a role as a micronutrient. It is a chromium group element atom and a metal allergen.

SMILES: [Cr]
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

[C][C][C][C][C][/C][=C][\C][/C][=C][\C][/C][=C][\C][/C][=C][\C][C][C][C][=Branch1][C][=O][C][Branch1][C][F][Branch1][C][F][F]

The molecule is a fatty acid derivative that is arachidonic acid in which the OH part of the carboxy group has been replaced by a trifluoromethyl group It has a role as an EC 3.1.1.4 (phospholipase A2) inhibitor. It is an organofluorine compound, a ketone, an olefinic compound and a fatty acid derivative. It derives from an arachidonic acid.

SMILES: CCCCCC=CCC=CCC=CCC=CCCCC(=O)C(F)(F)F
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][N][C][=Branch1][C][=O][C][=C][C][=C][C][Branch1][C][O][=C][Ring1][#Branch1]

The molecule is an N-acylglycine that is hippuric acid (N-benzoylglycine) substituted at position 3 on the phenyl ring by a hydroxy group. It has a role as a metabolite. It is a N-acylglycine and a member of phenols. It derives from a N-benzoylglycine. It is a conjugate acid of a m-hydroxyhippurate.

SMILES: O=C(O)CNC(=O)c1cccc(O)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][Ring1][=Branch1][C][=C][C][Branch1][N][N][C][C][N][Branch1][C][C][C][C][Ring1][#Branch1][=N][C][=C][Ring1][=N][N][Branch1][C][C][C][=Branch1][C][=O][C][Branch1][C][C][Branch1][C][C][C][=C][C][Branch1][=Branch2][C][Branch1][C][F][Branch1][C][F][F][=C][C][Branch1][=Branch2][C][Branch1][C][F][Branch1][C][F][F][=C][Ring1][=C]

The molecule is a monocarboxylic acid amide obtained by formal condensation of the carboxy group of 2-[3,5-bis(trifluoromethyl)phenyl]-2-methylpropanoic acid with the secondary amino group of N-methyl-4-(2-methylphenyl)-6-(4-methylpiperazin-1-yl)pyridin-3-amine; an antiemetic used in combination with palonosetron hydrochloride (under the trade name Akynzeo) to treat nausea and vomiting in patients undergoing cancer chemotherapy. It has a role as an antiemetic and a neurokinin-1 receptor antagonist. It is a monocarboxylic acid amide, an organofluorine compound, an aminopyridine, a member of toluenes, a N-alkylpiperazine and a N-arylpiperazine.

SMILES: Cc1ccccc1-c1cc(N2CCN(C)CC2)ncc1N(C)C(=O)C(C)(C)c1cc(C(F)(F)F)cc(C(F)(F)F)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][O][C][=C][C][O][C][=Branch1][C][=O][C][=C][Branch1][C][O][C][=C][Branch1][C][O][C][=C][Ring1][Branch2][C][=Ring1][=N][C][Branch1][C][C][=C][Ring2][Ring1][C][Cl]

The molecule is an organic heterotricyclic compound that is 6H-benzo[c]chromen-6-one substituted by a methyl group at position 1, chloro group at position 2, methoxy group at position 3, and by hydroxy groups at positions 7 and 9. It is a metabolite isolated from Hyalodendriella species. It has a role as a fungal metabolite. It is a benzochromenone, an aromatic ether, an organic heterotricyclic compound, an organic hydroxy compound and an organochlorine compound. It derives from a 6H-dibenzo[b,d]pyran-6-one.

SMILES: COc1cc2oc(=O)c3c(O)cc(O)cc3c2c(C)c1Cl
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][O][C][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@@H1][Branch2][O][Branch1][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@H1][Branch2][#Branch1][Branch2][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@H1][Branch1][C][O][C@H1][Branch2][Branch1][=C][O][C@@H1][O][C@H1][Branch1][Ring1][C][O][C@H1][Branch1][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][Ring1][=C][O][C@H1][Ring2][Ring2][=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][=Branch1][O][O][C@H1][Branch1][C][O][C@H1][Ring2][#Branch1][=Branch1][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 sialopentaosylceramide consisting of a alpha-Neu5Ac-(2->3)-beta-D-Gal(1->3)beta-GalNAc-(1->4)-[alpha-Neu5Ac-(2->3)]beta-Gal-(1->4)-beta-Glc attached to the primary hydroxy function of ceramide(d18:1/18:0). It has a role as a mouse metabolite.

SMILES: CCCCCCCCCCCCCC=CC(O)C(COC1OC(CO)C(OC2OC(CO)C(OC3OC(CO)C(O)C(OC4OC(CO)C(O)C(OC5(C(=O)O)CC(O)C(NC(C)=O)C(C(O)C(O)CO)O5)C4O)C3NC(C)=O)C(OC3(C(=O)O)CC(O)C(NC(C)=O)C(C(O)C(O)CO)O3)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][Branch2][=Branch1][=Branch1][O][C@H1][C@H1][Branch1][C][O][C@@H1][Branch1][Ring1][C][O][O][C][Branch2][Ring2][N][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][=N][N][C][=C][C][=Branch1][C][=O][NH1][C][Ring1][#Branch1][=O][C@H1][Branch1][C][O][C@@H1][Ring1][=C][O][C@@H1][Ring2][Ring2][C][N][C][Branch1][C][C][=O][C][=Branch1][C][=O][O-1]

The molecule is a nucleotide-sugar oxoanion arising from deprotonation of diphosphate and carboxy groups of UDP-N-acetyl-3-O-(1-carboxyvinyl)-D-glucosamine; major species at pH 7.3. It is a conjugate base of an UDP-N-acetyl-3-O-(1-carboxyvinyl)-D-glucosamine.

SMILES: C=C(OC1C(O)C(CO)OC(OP(=O)([O-])OP(=O)([O-])OCC2OC(n3ccc(=O)[nH]c3=O)C(O)C2O)C1NC(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][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C@H1][Branch1][N][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C@@H1][C@@H1][Branch2][Ring2][Branch1][N][C][=Branch1][C][=O][C][C@@H1][Branch1][N][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@H1][Branch2][#Branch1][Branch2][O][C][C@H1][O][C@H1][Branch2][Ring1][=Branch2][O][P][=Branch1][C][=O][Branch1][C][O][O][C@H1][O][C][C@H1][Branch1][C][N][C@H1][Branch1][C][O][C@H1][Ring1][Branch2][O][C@H1][Branch2][Ring1][=Branch1][N][C][=Branch1][C][=O][C][C@H1][Branch1][C][O][C][C][C][C][C][C][C][C][C][C][C][C@@H1][Branch2][Ring1][=Branch1][O][C][=Branch1][C][=O][C][C@H1][Branch1][C][O][C][C][C][C][C][C][C][C][C][C][C][C@@H1][Ring2][Branch1][=Branch1][O][O][C@H1][Branch2][Branch1][#C][C][O][C@][Branch1][=Branch1][C][=Branch1][C][=O][O][C][C@@H1][Branch2][Ring1][#C][O][C@][Branch1][=Branch1][C][=Branch1][C][=O][O][C][C@@H1][Branch1][C][O][C@@H1][Branch1][C][O][C@@H1][Branch1][#Branch1][C@H1][Branch1][C][O][C][O][O][Ring1][#C][C@@H1][Branch1][C][O][C@@H1][Branch1][#Branch1][C@H1][Branch1][C][O][C][O][O][Ring2][Ring1][=C][C@H1][Ring2][=Branch2][=N][O][P][=Branch1][C][=O][Branch1][C][O][O][C@H1][O][C][C@H1][Branch1][C][N][C@H1][Branch1][C][O][C@H1][Ring1][Branch2][O]

The molecule is a lipid A derivative comprising lipid A glycosylated with two 3-deoxy-D-manno-octulosonic acid (KDO) residues and carrying two additional 4-amino-4-deoxy-beta-L-arabinopyranosyl esterifying groups. It is a member of lipid As, a dodecanoate ester and a tetradecanoate ester. It is a conjugate acid of a (beta-L-Ara4N)2-(KDO)2-lipid A(2-).

SMILES: CCCCCCCCCCCCCC(=O)OC(CCCCCCCCCCC)CC(=O)OC1C(NC(=O)CC(CCCCCCCCCCC)OC(=O)CCCCCCCCCCC)C(OCC2OC(OP(=O)(O)OC3OCC(N)C(O)C3O)C(NC(=O)CC(O)CCCCCCCCCCC)C(OC(=O)CC(O)CCCCCCCCCCC)C2O)OC(COC2(C(=O)O)CC(OC3(C(=O)O)CC(O)C(O)C(C(O)CO)O3)C(O)C(C(O)CO)O2)C1OP(=O)(O)OC1OCC(N)C(O)C1O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

[C][=C][C][=C][Branch1][C][C][C][Branch2][=Branch1][Ring1][C][C][=N][/C][=Branch2][Ring2][=N][=C][/C][Branch1][#Branch1][C][=Branch1][C][=O][O][C][=C][Branch1][C][O-1][C][=C][Ring1][#Branch2][NH1][C][Branch2][Ring1][C][C][C][NH1][C][Branch1][Ring1][C][=O][=C][Branch1][C][C][C][=Ring1][Branch2][C][C][=C][Ring1][S][C][C@@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][O-1][C@@H1][Ring2][Ring2][Ring1][C][N][C][Ring2][Ring2][O][=O]

The molecule is dianion of primary fluorescent chlorophyll catabolite. It is a conjugate base of a primary fluorescent chlorophyll catabolite.

SMILES: C=CC1=C(C)C(CC2=NC(=C3C(C(=O)OC)=C([O-])c4c3[nH]c(Cc3[nH]c(C=O)c(C)c3CC)c4C)C(CCC(=O)[O-])C2C)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>

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

The molecule is an arabinaric acid. It is a conjugate acid of a D-arabinarate(1-). It is an enantiomer of a L-arabinaric acid.

SMILES: O=C(O)C(O)C(O)C(O)C(=O)O