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

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

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

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

The molecule is the (R)-enantiomer of 3-sulfolactic acid. It is a conjugate acid of a (R)-3-sulfolactate. It is an enantiomer of a (S)-3-sulfolactic acid.

SMILES: O=C(O)C(O)CS(=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][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C][C][Branch1][C][O][C][O]

The molecule is a fatty acid ester resulting from the formal condensation of the hydroxy group at position-1 of glycerol with the carboxy group of tetracosanoic acid. It has a role as a plant metabolite. It is a 1-monoglyceride and a fatty acid ester. It derives from a glycerol and a tetracosanoic acid.

SMILES: CCCCCCCCCCCCCCCCCCCCCCCC(=O)OCC(O)CO
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][O][C@@H1][C@H1][O][C@][Ring1][Ring1][Branch1][C][C][C][C][/C][=C][Branch1][C][\C][C][C][C@@H1][Ring1][P][Ring1][=N]

The molecule is a sesquiterpene lactone and active principle of Feverfew (Tanacetum parthenium). It has a role as a non-steroidal anti-inflammatory drug, a non-narcotic analgesic, a peripheral nervous system drug, an inhibitor and a drug allergen.

SMILES: C=C1C(=O)OC2C1CCC(C)=CCCC1(C)OC21
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][C][C][C][NH2+1][Ring1][Branch1]

The molecule is an optically active form of prolinium having L-configuration. It has a role as a human metabolite. It is a conjugate acid of a L-proline. It is an enantiomer of a D-prolinium.

SMILES: O=C(O)C1CCC[NH2+]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][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O]

The molecule is a fatty acid amide resulting from the formal condensation of the carboxy group of octadecanoic acid with the amino group of glycine. It has a role as a human metabolite. It is a N-acylglycine 18:0 and a fatty amide. It derives from an octadecanoic acid. It is a conjugate acid of a N-octadecanoylglycinate.

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

The molecule is a flavanone glycoside that is (2S)-flavanone substituted by hydroxy groups at positions 5, 2' and 5', methyl groups at positions 6 and 8 and a (6''-O-p-hydroxybenzoyl)-beta-D-glucopyranosyloxy residue at position 7. Isolated from the leaves of Myrcia multiflora, it exhibits inhibitory activity against aldose reductase. It has a role as an EC 1.1.1.21 (aldehyde reductase) inhibitor and a plant metabolite. It is a beta-D-glucoside, a flavanone glycoside, a monosaccharide derivative, a trihydroxyflavanone and a 4-hydroxybenzoate ester.

SMILES: Cc1c(O)c2c(c(C)c1OC1OC(COC(=O)c3ccc(O)cc3)C(O)C(O)C1O)OC(c1cc(O)ccc1O)CC2=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][=C][C][=C][Branch2][Ring1][P][N][=N][C][=C][Branch1][C][N][C][=C][C][=C][C][Branch1][=Branch2][S][=Branch1][C][=O][=Branch1][C][=O][O-1][=C][C][Branch1][C][O][=C][Ring1][S][Ring1][O][C][Branch1][=Branch2][S][=Branch1][C][=O][=Branch1][C][=O][O-1][=C][Ring2][Ring1][N]

The molecule is an organosulfonate oxoanion resulting from the removal of a proton from both of the sulfo groups of 5-[(4-acetamido-2-sulfophenyl)diazenyl]-6-amino-4-hydroxynaphthalene-2-sulfonic acid. It is a conjugate base of a lissamine fast red (acid form).

SMILES: CC(=O)Nc1ccc(N=Nc2c(N)ccc3cc(S(=O)(=O)[O-])cc(O)c23)c(S(=O)(=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][Branch1][C][C][/C][=C][/C][C@H1][Branch1][C][C][C@@H1][C][C][C@][Branch1][C][C][C][=C][C][C@H1][C][Branch1][C][C][Branch1][C][C][C][=Branch1][C][=O][C][C][C@][Ring1][=Branch2][Branch1][C][C][C@H1][Ring1][=C][C][C][C@@][Ring2][Ring1][=Branch1][Ring2][Ring1][Ring1][C]

The molecule is a tirucallane triterpenoid that is (13alpha,14beta,17alpha,20S,23E)-lanosta-7,23,25-triene substituted by an oxo group at position 3. It has been isolated from the stem and stem barks of Cornus walteri. It has a role as a plant metabolite. It is a tirucallane triterpenoid and a cyclic terpene ketone.

SMILES: C=C(C)C=CCC(C)C1CCC2(C)C3=CCC4C(C)(C)C(=O)CCC4(C)C3CCC12C
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is a 1-monoglyceride resulting from the formal esterification of butyric acid with one of the primary hydroxy groups of glycerol. The R enantiomer is bioactive. It is a 1-monoglyceride, a fatty acid ester, a diol and a butyrate ester. It derives from a butyric acid.

SMILES: CCCC(=O)OCC(O)CO
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][C@H1][C@@H1][C][C][C][=C][C][=Branch1][C][=O][C][=C][C@][Ring1][#Branch1][Branch1][C][C][C@@][Ring1][N][Branch1][C][F][C@@H1][Branch1][C][O][C][C@][Ring2][Ring1][C][Branch1][C][C][C@@][Ring2][Ring1][=Branch1][Branch1][C][O][C][=Branch1][C][=O][C][O]

The molecule is a glucocorticoid, a 20-oxo steroid, a 21-hydroxy steroid, a 17alpha-hydroxy steroid, a fluorinated steroid, an 11beta-hydroxy steroid, a 3-oxo-Delta(1),Delta(4)-steroid, a primary alpha-hydroxy ketone and a tertiary alpha-hydroxy ketone. It has a role as an anti-inflammatory drug, an anti-asthmatic agent and an immunosuppressive agent. It derives from a hydride of a pregnane.

SMILES: CC1CC2C3CCC4=CC(=O)C=CC4(C)C3(F)C(O)CC2(C)C1(O)C(=O)CO
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@@H1][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O]

The molecule is a phenylalanine derivative consisting of L-phenylalanine having a methyl substuent attached to the alpha-amino function. It is a L-phenylalanine derivative and a N-methyl-L-alpha-amino acid. It is a tautomer of a N-methyl-L-phenylalanine zwitterion.

SMILES: CNC(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>

[O][=C][O][C][Branch2][Ring1][=Branch1][C][=C][C][=C][Branch1][C][O][C][Branch1][=Branch2][S][=Branch1][C][=O][=Branch1][C][=O][O-1][=C][Ring1][O][Branch2][Ring1][=Branch1][C][=C][C][=C][Branch1][C][O][C][Branch1][=Branch2][S][=Branch1][C][=O][=Branch1][C][=O][O-1][=C][Ring1][O][C][=C][Branch1][C][Br][C][Branch1][C][Br][=C][Branch1][C][Br][C][Branch1][C][Br][=C][Ring1][#Branch2][Ring2][Ring2][Ring1].[Na+1].[Na+1]

The molecule is an organic sodium salt that is the disodium salt of bromosulfophthalein. It has a role as a dye. It contains a bromosulfophthalein(2-). It derives from a 2-benzofuran-1(3H)-one.

SMILES: O=C1OC(c2ccc(O)c(S(=O)(=O)[O-])c2)(c2ccc(O)c(S(=O)(=O)[O-])c2)c2c(Br)c(Br)c(Br)c(Br)c21.[Na+].[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>

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

The molecule is a flavanone glycoside that is hesperitin having an 2-O-(alpha-L-rhamnopyranosyl)-beta-D-glucopyranosyl moiety attached to the 7-hydroxy group. It has a role as an antineoplastic agent and a plant metabolite. It is a neohesperidoside, a disaccharide derivative, a dihydroxyflavanone, a member of 3'-hydroxyflavanones, a monomethoxyflavanone, a flavanone glycoside and a member of 4'-methoxyflavanones. It derives from a hesperetin.

SMILES: COc1ccc(C2CC(=O)c3c(O)cc(OC4OC(CO)C(O)C(O)C4OC4OC(C)C(O)C(O)C4O)cc3O2)cc1O
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>

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

The molecule is a member of the class of 1,3-thiazole bearing 2-cyclopentylidenehydrazino and 4-chlorophenyl substituents at positions 2 and 4 respectively. It has a role as an EC 2.3.1.48 (histone acetyltransferase) inhibitor. It is a member of 1,3-thiazoles, a hydrazone and a member of monochlorobenzenes.

SMILES: Clc1ccc(-c2csc(NN=C3CCCC3)n2)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][NH1+1][C][C][C][C@H1][Ring1][Branch1][C][=C][C][=C][N][=C][Ring1][=Branch1]

The molecule is the conjugate acid of (S)-nicotine arising from selective protonation of the tertiary amino group; major species at pH 7.3. It has a role as a plant metabolite. It is a conjugate acid of a (S)-nicotine. It is an enantiomer of a (R)-nicotinium(1+).

SMILES: C[NH+]1CCCC1c1cccnc1
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>

[NH3+1][C][C][=C][C][Branch2][Ring1][Ring1][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][O-1][=C][O][Ring1][#C]

The molecule is an organophosphate oxoanion obtained by deprotonation of the diphosphate OH groups and protonation of the amino group of [5-(aminomethyl)-3-furyl]methyl diphosphate; major species at pH 7.3. It is a conjugate base of a [5-(aminomethyl)-3-furyl]methyl diphosphate.

SMILES: [NH3+]Cc1cc(COP(=O)([O-])OP(=O)([O-])[O-])co1
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][C@H1][Branch2][Ring1][Branch1][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C@H1][Branch1][C][NH3+1][C][=Branch1][C][=O][O-1][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C]

The molecule is a phosphatidylserine 34:1 that is the conjugate base of 1-oleoyl-2-palmitoyl-sn-glycero-3-phospho-L-serine, in which the carboxy and phosphate groups are anionic and the amino group is cationic. It is a conjugate base of a 1-oleoyl-2-palmitoyl-sn-glycero-3-phospho-L-serine.

SMILES: CCCCCCCCC=CCCCCCCCC(=O)OCC(COP(=O)([O-])OCC([NH3+])C(=O)[O-])OC(=O)CCCCCCCCCCCCCCC
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][Ring2][=C][C][=Branch1][C][=O][O][C][=C][C][=C][Branch1][#C][C][Branch1][C][O][C][N][C][Branch1][C][C][Branch1][C][C][C][C][=C][Ring1][=C][O][C][=Branch1][C][=O][C][=C][C][=C][Branch1][C][C][C][=C][Ring1][#Branch1][C][=C][Ring2][Ring1][P]

The molecule is the di-4-toluate ester of (+-)-N-tert-butylnoradrenaline (colterol). A pro-drug for colterol, a beta2-adrenergic receptor agonist, bitolterol is used as its methanesulfonate salt for relief of bronchospasm in conditions such as asthma, chronic bronchitis and emphysema. It has a role as a bronchodilator agent, an anti-asthmatic drug, a beta-adrenergic agonist and a prodrug. It is a member of ethanolamines, a carboxylic ester, a diester, a secondary amino compound and a secondary alcohol.

SMILES: Cc1ccc(C(=O)Oc2ccc(C(O)CNC(C)(C)C)cc2OC(=O)c2ccc(C)cc2)cc1