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

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

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

[C][/C][=C][\C][C][C@H1][Branch1][C][C][O][C][=Branch1][C][=O][C][C@H1][Branch1][N][C][=C][C][=C][Branch1][C][O][C][=C][Ring1][#Branch1][N][C][=Branch1][C][=O][C@@H1][Branch2][Ring1][C][C][C][=C][Branch1][C][Br][NH1][C][=C][C][=C][C][=C][Ring1][#Branch2][Ring1][=Branch1][N][Branch1][C][C][C][=Branch1][C][=O][C@H1][Branch1][C][C][N][C][=Branch1][C][=O][C@@H1][Branch1][C][C][C][Ring2][Ring2][=N]

The molecule is a cyclodepsipeptide isolated from Jaspis splendens. A derivative of jaspamide, it has been shown to exhibit cytotoxic and microfilament disruption activity. It has a role as an antineoplastic agent, an actin polymerisation inhibitor, an animal metabolite and a marine metabolite. It is a cyclodepsipeptide, a macrocycle and an organobromine compound.

SMILES: CC1=CCCC(C)OC(=O)CC(c2ccc(O)cc2)NC(=O)C(Cc2c(Br)[nH]c3ccccc23)N(C)C(=O)C(C)NC(=O)C(C)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][O][Branch2][#Branch1][Branch2][C][C][=Branch1][C][=O][S][C][C][N][C][=Branch1][C][=O][C][C][N][C][=Branch1][C][=O][C@H1][Branch1][C][O][C][Branch1][C][C][Branch1][C][C][C][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C@H1][O][C@@H1][Branch1][P][N][C][=N][C][=C][Branch1][C][N][N][=C][N][=C][Ring1][#Branch1][Ring1][#Branch2][C@H1][Branch1][C][O][C@@H1][Ring1][S][O][P][=Branch1][C][=O][Branch1][C][O][O][C][=Branch1][C][=O][O]

The molecule is an acyl-CoA having citramalyl as the S-acyl group. It derives from a coenzyme A. It is a conjugate acid of a citramalyl-CoA(5-).

SMILES: CC(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)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][=Branch1][C][=O][N][C@@H1][Branch1][C][O][C][=Branch1][C][=O][O-1]

The molecule is an N-acyl-(2S)-hydroxyglycinate resulting from the deprotonation of the carboxy group of N-hexanoyl-(2S)-hydroxyglycine. The major species at pH 7.3. It is a conjugate base of a N-hexanoyl-(2S)-hydroxyglycine.

SMILES: CCCCCC(=O)NC(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][=C][Branch2][Ring1][C][N][C][=Branch1][C][=O][C][=C][Branch1][C][F][C][=C][C][=C][Ring1][#Branch1][F][N][C][=C][C][=C][Branch2][Ring1][Branch1][O][C][=C][C][=C][Branch1][=Branch2][C][Branch1][C][F][Branch1][C][F][F][C][=C][Ring1][#Branch2][Cl][C][=C][Ring2][Ring1][C][F]

The molecule is a benzoylurea insecticide, a member of monochlorobenzenes, a member of (trifluoromethyl)benzenes, a member of monofluorobenzenes and a difluorobenzene. It has a role as a mite growth regulator. It derives from a diphenyl ether.

SMILES: O=C(NC(=O)c1c(F)cccc1F)Nc1ccc(Oc2ccc(C(F)(F)F)cc2Cl)cc1F
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][C][/C][Branch1][C][C][=C][/C][C][C@][Branch1][C][C][C@H1][Branch1][C][C][C][C][C][=Branch1][=Branch1][=C][Branch1][C][C][C][C@H1][Ring1][O][C][C][C][=O]

The molecule is a triterpenoid and aldehyde that is 3-cyclohexylpropanal in which the cyclohexyl group is substituted by methyl groups at positions 2 and 3, by an (E,E)-4,8,12-trimethyltrideca-3,7,11-trien-1-yl group at position 2, and by a propan-2-ylidene group at position 6 (the 1S,2R,3R-enantiomer). It is a triterpenoid and an aldehyde.

SMILES: CC(C)=CCCC(C)=CCCC(C)=CCCC1(C)C(C)CCC(=C(C)C)C1CCC=O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

[C][C][C][=Branch1][C][=O][N][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Branch1][Ring2][C][O][C][C][C][N][Branch1][#Branch2][C][C][C][=C][C][=C][S][Ring1][Branch1][C][C][Ring1][S]

The molecule is an anilide resulting from the formal condensation of the aryl amino group of 4-(methoxymethyl)-N-phenyl-1-[2-(2-thienyl)ethyl]piperidin-4-amine with propanoic acid. It has a role as an opioid analgesic, a mu-opioid receptor agonist, an anaesthesia adjuvant and an intravenous anaesthetic. It is a member of piperidines, a member of thiophenes, an anilide and an ether.

SMILES: CCC(=O)N(c1ccccc1)C1(COC)CCN(CCc2cccs2)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][Branch1][C][C][Branch1][C][O][C][C][C][C][Branch1][C][C][C]

The molecule is a fatty alcohol that is 3-octanol substituted by methyl groups at positions 3 and 7. Metabolite observed in cancer metabolism. It has a role as a human metabolite. It is a fatty alcohol, an alkyl alcohol and a tertiary alcohol.

SMILES: CCC(C)(O)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>

[N][C][=Branch1][C][=O][C@@H1][Branch1][C][N][C][C][C][C][N][C][=C][C][=C][Branch1][=Branch1][N+1][=Branch1][C][=O][O-1][C][=C][Ring1][=Branch2][N+1][=Branch1][C][=O][O-1]

The molecule is an amino acid amide that is L-lysinamide substituted on the nitrogen at position 6 by a 2,4-dinitrophenyl group. It has a role as an epitope. It contains a 2,4-dinitrophenyl group. It derives from a L-lysinamide.

SMILES: NC(=O)C(N)CCCCNc1ccc([N+](=O)[O-])cc1[N+](=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][Branch1][=N][\O][C][C][C][=C][Branch1][C][O][C][C][Branch1][=Branch2][C][C][C][C][S][C][Ring1][=Branch1][C][C][Ring1][=N][=O]

The molecule is a beta-diketone that is cyclohexa-1,3-dione which is substituted at position 2 by an N-ethoxybutanimidoyl group and at position 5 by a tetrahydro-2H-thiopyran-3-yl group. A systemic herbicide effective against grasses, it is used in the cultivation of a variety of crops, including oil seed rape and potatoes. It has a role as an EC 6.4.1.2 (acetyl-CoA carboxylase) inhibitor, a herbicide, an agrochemical and a fatty acid synthesis inhibitor. It is an organosulfur heterocyclic compound, an oxime O-ether, a beta-diketone and an enol.

SMILES: CCCC(=NOCC)C1=C(O)CC(C2CCCSC2)CC1=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@H1][O][C@@H1][Ring1][Ring1][/C][=C][/C@H1][Branch1][C][O][C][/C][=C][\C][C][C][C][=Branch1][C][=O][O]

The molecule is an epoxy(hydroxy)icosatrienoic acid consisting of (5Z,9E,14Z)-icosa-5,9,14-trienoic acid having additional (8R)-hydroxy- and (11R,12R)-epoxy groups. It derives from a (5Z,9E,14Z)-icosa-5,9,14-trienoic acid. It is a conjugate acid of an (8R)-hydroxy-(11R,12R)-epoxyicosa-(5Z,9E,14Z)-trienoate.

SMILES: CCCCCC=CCC1OC1C=CC(O)CC=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][O][C@@H1][C@@H1][Branch1][C][C][/C][=C][/C][Branch1][C][C][Branch1][C][C][C@H1][Branch1][#Branch1][O][C][Branch1][C][C][=O][C][C@@H1][Branch1][#Branch1][O][C][Branch1][C][C][=O][/C][Branch1][C][C][=C][/C@H1][C@@H1][Branch1][=C][O][C][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][C@H1][Branch1][C][C][C][C@][Ring2][Ring2][Branch1][Ring1][#C][O][C][Branch1][C][C][=O]

The molecule is a macrocyclic diterpenoid isolated from Euphorbia helioscopia and has been shown to exhibit cytotoxicity against HL-60 cell lines. It has a role as a metabolite and an antineoplastic agent. It is a diterpenoid, an acetate ester, a benzoate ester and a macrocycle.

SMILES: CC(=O)OC1CC(OC(C)=O)C(C)(C)C=CC(C)C(OC(C)=O)C2(OC(C)=O)CC(C)C(OC(=O)c3ccccc3)C2C=C1C
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][C][O][C@@H1][Branch1][C][N][C][=Branch1][C][=O][O]

The molecule is the D-enantiomer of allothreonine. It occurs as a component of peptido-lipids in certain bacteria. It has a role as a bacterial metabolite. It is an enantiomer of a L-allothreonine. It is a tautomer of a D-allothreonine zwitterion.

SMILES: CC(O)C(N)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][C][C][Branch1][C][O][C][N][Ring1][#Branch1]

The molecule is a piperidinemonocarboxylic acid that is pipecolic acid with a hydroxy substituent at position 5. It has a role as a metabolite. It derives from a pipecolic acid.

SMILES: O=C(O)C1CCC(O)CN1
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@H1][Branch1][C][C][C@H1][Branch1][Ring1][N][O][C][=Branch1][C][=O][O-1]

The molecule is a monocarboxylic acid anion, obtained by removal of a proton from the carboxylic acid group of N-hydroxy-L-isoleucine. It is a monocarboxylic acid anion, a member of hydroxylamines and a N-hydroxy-alpha-amino-acid anion. It is a conjugate base of a N-hydroxy-L-isoleucine.

SMILES: CCC(C)C(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>

[O][=C][Branch1][C][O][C][C][=C][C][Branch1][C][Br][=C][Branch1][C][O][C][Branch1][=Branch1][N+1][=Branch1][C][=O][O-1][=C][Ring1][O]

The molecule is a member of the class of phenylacetic acids in which the phenyl group is substituted by bromo, hydroxy, and nitro groups at position 3, 4, and 5 respectively. It is a member of 2-nitrophenols, a member of bromobenzenes and a member of phenylacetic acids.

SMILES: O=C(O)Cc1cc(Br)c(O)c([N+](=O)[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][Branch1][Ring2][N][C][=O][C][=Branch1][C][=O][N][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][N][Ring1][#C][C]

The molecule is a pyrazolone that is 1,2-dihydro-3H-pyrazol-3-one substituted by a formaylamino group at position 4, methyl groups at positions 1 and 5 and a phenyl group at position 2. It is a metabolite of aminophenazone. It has a role as a marine xenobiotic metabolite and a drug metabolite. It is a pyrazolone and a member of formamides.

SMILES: Cc1c(NC=O)c(=O)n(-c2ccccc2)n1C
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][Branch1][C][C][C][C][C][C][C][C][/C][=C][/C][=C][/C][=C][C][=C][C][=C][Ring1][=Branch1][C][C@@][Branch1][C][C][O][C][=Branch1][C][=O][C][C@H1][Ring1][#Branch1][O][O][Ring2][Ring1][=N]

The molecule is an organic heterobicyclic compound that is a cyclic peroxy compound isolated from the Australian marine sponge Plakinastrella clathrata. It has a role as a metabolite. It is a gamma-lactone and an organic heterobicyclic compound.

SMILES: CC1(CCCCCCCCC=CC=Cc2ccccc2)CC2(C)OC(=O)CC2OO1
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][Branch1][C][C][C][C]

The molecule is a branched C20 alkene consisting of a 19-carbon chain with a double bond between C-1 and C-2 and a methyl group at C-17.

SMILES: C=CCCCCCCCCCCCCCCC(C)CC
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][C][C][N][C][=Branch1][C][=O][C][C][=C][C][=C][Branch1][C][O][C][Branch1][=Branch1][N+1][=Branch1][C][=O][O-1][=C][Ring1][#Branch2]

The molecule is a monocarboxylic acid anion that is the conjugate base of 6-[(4-hydroxy-3-nitrophenyl)acetamido]caproic acid, formed ny proton loss from the carboxy group. It is a conjugate base of a 6-[(4-hydroxy-3-nitrophenyl)acetamido]caproic acid.

SMILES: O=C([O-])CCCCCNC(=O)Cc1ccc(O)c([N+](=O)[O-])c1