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][Branch1][C][C][C][C][C][C@H1][Branch1][C][C][C][C][C][C@H1][Branch1][C][C][C][C][Ring1][N]

The molecule is the fundamental parent of a class of sesquiterpenes with a structure based upon a cyclodecane ring substituted with an isopropyl and two methyl groups. It is a terpenoid fundamental parent and a sesquiterpene.

SMILES: CC1CCCC(C)CCC(C(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>

[O][=P][Branch1][C][O][Branch1][C][O][C][C][Cl]

The molecule is a phosphonic acid compound having a 2-chloroethyl substituent attached to the P-atom. It has a role as a plant growth regulator.

SMILES: O=P(O)(O)CCCl
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][C][C][C][C][C][C@H1][Branch1][Ring1][N][O][C][=Branch1][C][=O][O]

The molecule is an N-hydroxy-L-polyhomomethionine in which there are seven methylene groups between the alpha-carbon and sulfur atoms. It is a N-hydroxy-L-polyhomomethionine and a N-hydroxypentahomomethionine. It is a conjugate acid of a N-hydroxy-L-pentahomomethioninate.

SMILES: CSCCCCCCCC(NO)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][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-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 2,3-trans-enoyl CoA(4-) obtained by deprotonation of the phosphate and diphosphate OH groups of (2E,11Z)-icosadienoyl-CoA; major species at pH 7.3. It is a conjugate base of a (2E,11Z)-icosadienoyl-CoA.

SMILES: CCCCCCCCC=CCCCCCCCC=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][C][C][C][C@H1][Branch1][C][O][/C][=C][/C@@H1][C@@H1][Branch1][N][C][/C][=C][\C][C][C][C][=Branch1][C][=O][O][C@@H1][Branch1][C][O][C][C@@H1][Ring1][#C][O]

The molecule is the prostaglandin F that is the 11-epimer of prostaglandin F2alpha. It has a role as a human metabolite. It derives from a prostaglandin F2alpha. It is a conjugate acid of an 11-epi-prostaglandin F2alpha(1-).

SMILES: CCCCCC(O)C=CC1C(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][C@H1][Branch1][N][N][C][=Branch1][C][=O][C@@H1][Branch1][C][N][C][O][C][=Branch1][C][=O][N][C@@H1][Branch1][Ring1][C][O][C][=Branch1][C][=O][O]

The molecule is a tripeptide formed from L-serine, L-leucine and L-serine residues joined in sequence by peptide linkages. It derives from a L-serine and a L-leucine.

SMILES: CC(C)CC(NC(=O)C(N)CO)C(=O)NC(CO)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][=Branch1][C][=O][C][C][Branch1][C][C][Branch1][C][C][C@@][Ring1][=Branch2][Branch1][C][O][/C][=C][/C][Branch1][C][C][=C][/C][=O]

The molecule is an enal that is (+)-abscisic aldehyde in which the double bonds at position 2 and 4 have trans-configuration. It is an enal, an apo carotenoid sesquiterpenoid, a member of cyclohexenones and an enone.

SMILES: CC(C=CC1(O)C(C)=CC(=O)CC1(C)C)=CC=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][Branch2][Ring1][#C][O][C][=C][C][Branch2][Ring1][C][C][C][=N][N][Branch1][=Branch2][C][C][C][N][C][C][Ring1][=Branch1][C][=Ring1][O][=C][N][=C][Ring1][P][N][C][=C][Branch1][C][Cl][C][=C][C][Branch1][C][F][=C][Ring1][Branch2][Cl]

The molecule is a racemate comprising equimolar amounts of (R)- and (S)-crizotinib. The active (R)-enantiomer acts as a kinase inhibitor and is used for the treatment of patients with locally advanced or metastatic non-small cell lung cancer. It has a role as an antineoplastic agent, a biomarker and an EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor. It contains an ent-crizotinib and a crizotinib.

SMILES: CC(Oc1cc(-c2cnn(C3CCNCC3)c2)cnc1N)c1c(Cl)ccc(F)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@H1][C@H1][Branch1][C][C][C][C][C@][Branch1][=Branch1][C][=Branch1][C][=O][O][C][C][C@][Branch1][C][C][C][=Branch2][Ring2][Branch2][=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@H1][Branch1][C][O][C][C@][Ring1][P][Ring2][Ring1][=Branch1][C][C@H1][Ring2][Ring2][Ring1][Ring2][Ring1][=C]

The molecule is a pentacyclic triterpenoid that is ursane substituted by a carboxy group at position 28 and hydroxy groups at positions 2, 3, 6 and 23 (the 2alpha,3beta,6beta stereoisomer). It has a role as an antioxidant and a plant metabolite. It is a pentacyclic triterpenoid, a tetrol and a monocarboxylic acid. It derives from a hydride of an ursane.

SMILES: CC1CCC2(C(=O)O)CCC3(C)C(=CCC4C5(C)CC(O)C(O)C(C)(CO)C5C(O)CC43C)C2C1C
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][=Branch2][=Branch1][O][=C][/C][=C][C][=N+1][Branch2][Branch1][Branch2][C][C][C][N+1][Branch1][C][C][Branch1][C][C][C][C][C][N+1][Branch1][C][C][Branch1][C][C][C][C][C][N+1][=C][C][=C][Branch1][S][/C][=C][\S][C][=C][C][=C][C][=C][Ring1][=Branch1][N][Ring1][=Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring2][Ring1][Branch1][C][=C][C][=C][C][=C][Ring2][Ring2][=C][Ring1][=Branch1][S][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring2][Branch1][Branch2].[I-1].[I-1].[I-1].[I-1]

The molecule is an organic iodide salt and a cyanine dye. It has a role as a fluorochrome. It contains a ToTo-1(4+).

SMILES: CN1C(=Cc2cc[n+](CCC[N+](C)(C)CCC[N+](C)(C)CCC[n+]3ccc(C=C4Sc5ccccc5N4C)c4ccccc43)c3ccccc23)Sc2ccccc21.[I-].[I-].[I-].[I-]
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is a 5-[2-(dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-yl acetate in which both stereocentres have S configuration. A calcium-channel blocker and vasodilator, it is used as the hydrochloride in the management of angina pectoris and hypertension. It has a role as a calcium channel blocker, a vasodilator agent and an antihypertensive agent. It is a conjugate base of a diltiazem(1+). It is an enantiomer of an ent-diltiazem.

SMILES: COc1ccc(C2Sc3ccccc3N(CCN(C)C)C(=O)C2OC(C)=O)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][C][/C][=C][\C][C@@H1][Branch1][C][O][/C][=C][/C][=C][\C][/C][=C][\C][/C][=C][\C][C][C][C][=Branch1][C][=O][O]

The molecule is a 15-HEPE that consists of (5Z,8Z,11Z,13E,17Z)-icosapentaenoic acid in which the 15-hydroxy group has R-configuration. It has a role as a mouse metabolite, an anti-inflammatory agent and a human xenobiotic metabolite. It is a conjugate acid of a 15(R)-HEPE(1-). It is an enantiomer of a 15(S)-HEPE.

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

The molecule is a linear amino tetrasaccharide composed of N-acetyl-beta-D-galactosamine, alpha-D-galactose, beta-D-galactose and N-acetyl-beta-D-galactosamine units joined by sequential (1->3)-, (1->4)- and (1->4)-linkages. It has a role as an epitope.

SMILES: CC(=O)NC1C(O)OC(CO)C(OC2OC(CO)C(OC3OC(CO)C(O)C(OC4OC(CO)C(O)C(O)C4NC(C)=O)C3O)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][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][N][C@@H1][Branch2][Ring2][Branch1][C][O][C@H1][O][C@H1][Branch1][P][C][O][C][=Branch1][C][=O][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring2][Ring1][Ring2][O][C@H1][Branch1][C][O][C@H1][Branch1][C][O][C][C][C][C][C][C][C][C][C][C][C][C][C][C]

The molecule is a glycophytoceramide having an 6-O-(3-phenylpropanoyl)-alpha-D-galactosyl residue at the O-1 position and a hexacosanoyl group attached to the nitrogen; a C6"-modified alpha-GalCer derivative. It has a role as an epitope. It derives from an alpha-D-galactose.

SMILES: CCCCCCCCCCCCCCCCCCCCCCCCCC(=O)NC(COC1OC(COC(=O)CCc2ccccc2)C(O)C(O)C1O)C(O)C(O)CCCCCCCCCCCCCC
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][Branch1][C][O][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@@H1][Branch1][Ring1][C][O][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 glycosyl alditol that is D-mannitol in which the hydroxy group at position 2 has been converted into the corresponding alpha-D-mannopyranoside. It derives from a D-mannitol and an alpha-D-mannose.

SMILES: OCC(O)C(O)C(O)C(CO)OC1OC(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>

[O][=C][Branch1][C][O-1][C][=Branch1][C][=O][C][P][=Branch1][C][=O][Branch1][C][O-1][O-1]

The molecule is a triply-charged monocarboxylic acid anion obtained by deprotonation of the carboxy and phospho groups of 3-phosphonopyruvic acid. It derives from a pyruvate and a phosphonate(2-). It is a conjugate base of a 3-phosphonatopyruvate(2-).

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

[O][=C][Branch1][C][O][C][C][C][C][C@@][Branch1][C][O][Branch1][#Branch1][C][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]

The molecule is a chiral tricarboxylic acid in which a central carbon carries hydroxy, carboxy, carboxymethyl and 4-carboxybutyl substituents with R-configuration at the chiral centre. It is a conjugate acid of a (2R)-trihomocitrate(3-).

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

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

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

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

The molecule is an aryl phosphate resulting from the formal condensation of phosphoric acid with 1 mol eq. of 2-naphthol. It is a substrate for phosphatase. It has a role as a chromogenic compound. It derives from a 2-naphthol.

SMILES: O=P(O)(O)Oc1ccc2ccccc2c1