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>

[Cl][Mn][Cl].[O].[O]

The molecule is a hydrate that is the dihydrate form of manganese(II) chloride. It has a role as a MRI contrast agent and a nutraceutical. It is a hydrate, an inorganic chloride and a manganese coordination entity. It contains a manganese(II) chloride.

SMILES: Cl[Mn]Cl.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@H1][Branch1][C][O][C@H1][Branch1][C][NH3+1][C][O]

The molecule is a cationic sphingoid resulting from the protonation of the amino group of L-erythro-sphingosine; major species at pH 7.3. It is a conjugate acid of a L-erythro-sphingosine. It is an enantiomer of a sphingosine(1+).

SMILES: CCCCCCCCCCCCCC=CC(O)C([NH3+])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>

[Sm+3]

The molecule is a metal cation comprising samarium in the +3 oxidation state. It is a metal cation and a samarium molecular entity.

SMILES: [Sm+3]
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][N][C][=N][C][Branch1][C][N][=N][C][Branch1][C][Cl][=N][Ring1][Branch2]

The molecule is a chloro-1,3,5-triazine that is 6-chloro-1,3,5-triazine-2,4-diamine in which one of the hydrogens of the amino group is replaced by a propan-2-yl group. It has a role as a marine xenobiotic metabolite. It is a chloro-1,3,5-triazine and a diamino-1,3,5-triazine. It derives from a 6-chloro-1,3,5-triazine-2,4-diamine.

SMILES: CC(C)Nc1nc(N)nc(Cl)n1
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

[C][C][C][C][C][/C][=C][\C][/C][=C][\C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C@H1][Branch2][Ring1][#Branch1][C][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C][N+1][Branch1][C][C][Branch1][C][C][C]

The molecule is a 1,2-diacyl-sn-glycero-3-phosphocholine in which the two acyl substituents at positions 1 and 2 are specified as heptadecanoyl and (9Z,12Z)-octadecadienoyl respectively It has a role as a mouse metabolite. It derives from a heptadecanoic acid and a linoleic acid.

SMILES: CCCCCC=CCC=CCCCCCCCC(=O)OC(COC(=O)CCCCCCCCCCCCCCCC)COP(=O)([O-])OCC[N+](C)(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>

[NH3+1][C][C@H1][Branch1][C][O][C][C][C@H1][Branch1][C][NH3+1][C][=Branch1][C][=O][O-1]

The molecule is an alpha-amino-acid cation arising from deprotonation of the carboxy group and protonation of both amino groups of erythro-5-hydroxy-L-lysine; major species at pH 7.3. It has a role as a human metabolite. It is a conjugate acid of an erythro-5-hydroxy-L-lysine.

SMILES: [NH3+]CC(O)CCC([NH3+])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][Branch1][C][C][C][C@H1][Branch2][Ring1][=C][N][C][=Branch1][C][=O][C@H1][Branch1][#Branch1][C][C][Branch1][C][C][C][N][C][=Branch1][C][=O][C@@H1][Branch1][C][N][C][C][=Branch1][C][=O][O][C][=Branch1][C][=O][N][C@@H1][Branch1][Ring1][C][O][C][=Branch1][C][=O][O]

The molecule is a tetrapeptide composed of L-aspartic acid, two L-leucine units and L-serine joined in sequence by peptide linkages. It has a role as a metabolite. It derives from a L-aspartic acid, a L-leucine and a L-serine.

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

The molecule is a purine ribonucleoside 5'-monophosphate that is GMP bearing a methyl substituent at position 1. It derives from a guanosine 5'-monophosphate.

SMILES: Cn1c(N)nc2c(ncn2C2OC(COP(=O)(O)O)C(O)C2O)c1=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@@H1][Branch1][=C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C][O][O]

The molecule is a hydroperoxy fatty ester that is the methyl ester of (9R,10E,12Z)-9-hydroperoxyoctadeca-10,12-dienoic acid. It is a polyunsaturated fatty ester, a methyl ester and a hydroperoxy fatty ester. It derives from a methyl linoleate.

SMILES: CCCCCC=CC=CC(CCCCCCCC(=O)OC)OO
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][C][=Branch1][Branch1][=C][Ring1][#Branch1][C][O][C@][Branch1][C][C][Branch2][Ring1][#Branch1][C][C][C][C@H1][Branch1][C][C][C][C][C][C@H1][Branch1][C][C][C][C][C][C][Branch1][C][C][C][C][C][Ring2][Ring1][=Branch2]

The molecule is a tocopherol in which the chroman-6-ol core is substituted by methyl groups at positions 7 and 8. It is found particularly in maize (corn) oil and soya bean (soybean) oils. It has a role as a plant metabolite, a food antioxidant, a food component and an algal metabolite.

SMILES: Cc1c(O)cc2c(c1C)OC(C)(CCCC(C)CCCC(C)CCCC(C)C)CC2
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][N][C][N][=C][Branch1][C][N][NH1][C][=Branch1][C][=O][N][=Ring1][Branch2]

The molecule is a diamino-1,3,5-triazine that is N-(propan-2-yl)-1,3,5-triazine-2,4-diamine substituted by a hydroxy group at position 2. It is a metabolite of the herbicide atrazine. It has a role as a marine xenobiotic metabolite. It is a diamino-1,3,5-triazine and a heteroaryl hydroxy compound.

SMILES: CC(C)Nc1nc(N)[nH]c(=O)n1
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][=Branch1][C][=O][N][C@@H1][Branch1][=N][C][C][C][C][=Branch1][C][=O][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]

The molecule is a tricarboxylic acid consisting of L-2-amino-6-oxoheptanedioic acid having a succinoyl group attached to the nitrogen. It derives from a pimelic acid. It is a conjugate acid of a L-2-succinylamino-6-oxoheptanedioate(3-).

SMILES: O=C(O)CCC(=O)NC(CCCC(=O)C(=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][Branch1][C][O][/C][=C][/C][=C][\C][/C][=C][\C][/C][=C][\C][/C][=C][\C][C][C][C][=Branch1][C][=O][O]

The molecule is a hydroxyicosapentaenoic acid that consists of 5Z,8Z,11Z,14Z,16E-icosapentaenoic acid with the hydroxy group located at position 18. It has a role as a human xenobiotic metabolite. It is a conjugate acid of a 18-HEPE(1-).

SMILES: CCC(O)C=CC=CCC=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][Branch2][=Branch2][=Branch2][O][C@H1][C@H1][Branch1][C][O][C@@H1][Branch1][#Branch1][N][C][Branch1][C][C][=O][C@@H1][Branch2][#Branch1][#C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][/C][C][C][/C][=C][Branch1][C][\C][C][C][/C][=C][Branch1][C][\C][C][C][C][=C][Branch1][C][C][C][O][C@@H1][Ring2][=Branch1][O][C][O][O][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C@@H1][Branch1][C][O][C@@H1][Ring2][#Branch1][Branch2][O]

The molecule is an organophosphate oxoanion resulting from deprotonation of the carboxy and phosphate OH groups of beta-D-ManNAcA-(1->4)-alpha-D-GlcNAc-1-diphospho-ditrans,polycis-undecaprenol; major species at pH 7.3. It is an organophosphate oxoanion, a carbohydrate acid derivative anion and a monocarboxylic acid anion. It is a conjugate base of a beta-D-ManNAcA-(1->4)-alpha-D-GlcNAc-1-diphospho-ditrans,polycis-undecaprenol.

SMILES: CC(=O)NC1C(OC2C(CO)OC(OP(=O)([O-])OP(=O)([O-])OCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)CCC=C(C)C)C(NC(C)=O)C2O)OC(C(=O)[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][Branch1][C][C][=O]

The molecule is a methyl ketone that is butan-2-one with an unsaturation at position 3. It is a methyl ketone and an enone. It derives from a butan-2-one and a but-1-ene.

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

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

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

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

The molecule is a 1,2-diacyl-sn-glycerol 3-phosphate in which the phosphatidyl acyl groups at postions 1 and 2 are specified as heptadecanoyl and myristoyl respectively. It is a 1,2-diacyl-sn-glycerol 3-phosphate and a tetradecanoate ester. It derives from a heptadecanoic acid. It is a conjugate acid of a 1-heptadecanoyl-2-myristoyl-sn-glycero-3-phosphate(2-).

SMILES: CCCCCCCCCCCCCCCCC(=O)OCC(COP(=O)(O)O)OC(=O)CCCCCCCCCCCCC
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][O][C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][C][C@@H1][C@@H1][Ring1][#Branch1][C][C][C@][Branch1][C][C][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C][C@@H1][Ring1][N][Ring1][Branch2]

The molecule is a 16alpha-hydroxy steroid that is estriol in which the hydroxy group at position 3 is replaced by an allyloxy group. It is a 16alpha-hydroxy steroid and a 17beta-hydroxy steroid. It derives from an estriol. It derives from a hydride of an estrane.

SMILES: C=CCOc1ccc2c(c1)CCC1C2CCC2(C)C(O)C(O)CC12
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][N][C][=C][C][O][C][=C][C][=Branch1][Ring2][=NH1+1][C][C][C][Branch1][C][C][=C][C][Ring1][#Branch2][=C][Branch1][Branch2][C][C][C][=Branch1][C][=O][O][C][=Ring2][Ring1][Ring1][C][=C][Ring2][Ring1][#Branch1][C]

The molecule is the cationic form of a fluorescent dye derived from a 3,6-bis(ethylamino)xanthene. It has a role as a fluorochrome. It is a xanthene dye and a monocarboxylic acid.

SMILES: CCNc1cc2oc3cc(=[NH+]CC)c(C)cc-3c(CCC(=O)O)c2cc1C
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][=N][C][NH1][C][=Branch1][C][=O][NH1][C][=Ring1][=Branch1][C][=Branch1][C][=O][NH1][Ring1][O]

The molecule is an oxopurine that is guanine in which the hydrogen at position 8 is replaced by an oxo group and in which the nitrogens at positions 7 and 9 each bear a hydrogen. It derives from a guanine.

SMILES: Nc1nc2[nH]c(=O)[nH]c2c(=O)[nH]1