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

The molecule is a branched polysaccharide acid oxoanion comprised of an octasaccharide repeating unit consisting of a backbone of two glucose and two glucuronic acid residues, and a side chain of three glucose and one galactose residues. The octasaccharide is modified by two pyruvyl and one non-stoichiometric O-acetyl group, and one non-stoichiometric hydroxybutanoyl group. Note that the structure shown and its molfile represent only one of the possible substitution patterns.

SMILES: CC(=O)OC1C(O)OC(COC2OC(CO)C(OC3OC(CO)C(OC4OC(CO)C(O)C(OC5OC6COC(C)(C(=O)[O-])OC6C(OC(=O)CC(C)O)C5O)C4O)C(O)C3O)C(O)C2O)C(OC2OC(CO)C(OC3OC(C(=O)[O-])C(OC4OC(C(=O)[O-])C(O)C(O)C4O)C(O)C3OC(C)=O)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][O][C][=Branch1][C][=O][C][Ring1][=Branch1]

The molecule is a butan-4-olide that is gamma-butyrolactone substituted by a butyl group at position 4. It has a role as a metabolite. It derives from a gamma-butyrolactone.

SMILES: CCCCC1COC(=O)C1
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is a member of the class of benzaldehydes that is salicylaldehyde in which the hydrogen ortho- to the hydroxy group is substituted by a methyl group. It is a member of benzaldehydes and a member of phenols. It derives from a salicylaldehyde.

SMILES: Cc1cccc(C=O)c1O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

[C][C][=Branch1][C][=O][N][C@@H1][C@H1][Branch1][C][O][C@@H1][Branch1][C][O][C][Branch2][Ring2][N][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C@H1][O][C@@H1][Branch1][S][N][C][=C][Branch1][C][C][C][=Branch1][C][=O][NH1][C][Ring1][Branch2][=O][C][C@@H1][Ring1][=C][O][O][C@@H1][Ring2][Ring1][P][C]

The molecule is a dTDP-sugar having 4-acetamido-4,6-dideoxy-D-galactose as the sugar portion. It derives from a dTDP-galactose and a 4-acetamido-4,6-dideoxy-D-galactose. It is a conjugate acid of a dTDP-4-acetamido-4,6-dideoxy-D-galactose(2-).

SMILES: CC(=O)NC1C(C)OC(OP(=O)(O)OP(=O)(O)OCC2OC(n3cc(C)c(=O)[nH]c3=O)CC2O)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][O][C][=C][C][=C][C][=C][Ring1][=Branch1][P][Branch1][C][C][=Branch1][C][=O][C][#C][C][C][C][=Branch1][C][=O][O]

The molecule is a phosphine oxide in which the substituents on phosphorus are 4-carboxybut-1-yn-1-yl, methyl and 2-methoxyphenyl. It is a phosphine oxide and an acetylenic compound.

SMILES: COc1ccccc1P(C)(=O)C#CCCC(=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>

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

The molecule is a monobactam that is produced by Nocardia uniformis subsp. tsuyamanensis. It has a role as a bacterial metabolite. It is a monobactam, a dicarboxylic acid, a member of phenols and a D-alpha-amino acid. It derives from a D-homoserine. It is a tautomer of a nocardicin C dizwitterion.

SMILES: NC(CCOc1ccc(C(N)C(=O)NC2CN(C(C(=O)O)c3ccc(O)cc3)C2=O)cc1)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>

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

The molecule is a 2'-deoxycytidine phosphate that is 2'-deoxycytidine-5'-monophosphate in which the hydrogen at position 5 on the cytosine ring is replaced by iodine. It is a 2'-deoxycytidine phosphate and an organoiodine compound. It derives from a 2'-deoxycytosine 5'-monophosphate.

SMILES: Nc1nc(=O)n(C2CC(O)C(COP(=O)(O)O)O2)cc1I
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][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 polyunsaturated fatty acyl-CoA(4-) arising from deprotonation of the phosphate and diphosphate functions of (17Z,20Z,23Z,26Z)-dotriacontatetraenoyl-CoA. It is a polyunsaturated fatty acyl-CoA(4-), a very long-chain acyl-CoA(4-) and a 3-substituted propionyl-CoA(4-). It is a conjugate base of a (17Z,20Z,23Z,26Z)-dotriacontatetraenoyl-CoA.

SMILES: CCCCCC=CCC=CCC=CCC=CCCCCCCCCCCCCCCCC(=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@@H1][C][=C][C][=C][Branch1][C][O][C][Branch2][Ring1][Branch2][O][C@@H1][O][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][C@@H1][Branch1][C][O][C@H1][Branch1][C][O][C@H1][Ring1][O][O][=C][Ring2][Ring1][Ring2][C][C][C@H1][Ring2][Ring1][Branch2][C@@H1][Ring2][Ring1][N][C][C][C][Ring2][Ring1][#C][=O]

The molecule is a steroid glucuronide anion that is the conjugate base of estrone 4-O-(beta-D-glucuronide) arising from deprotonation of the carboxylic acid function; major species at pH 7.3. It is a steroid glucosiduronic acid anion, a beta-D-glucosiduronate and a monocarboxylic acid anion. It is a conjugate base of a 4-hydroxyestrone 4-O-(beta-D-glucuronide).

SMILES: CC12CCC3c4ccc(O)c(OC5OC(C(=O)[O-])C(O)C(O)C5O)c4CCC3C1CCC2=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][O][C][=C][C][=C][Branch1][#Branch2][C][Branch1][C][O][=C][Ring1][#Branch1][O][C][C][C][C][C][C][=Branch1][C][=O][C][C][C][=C][C][=C][Branch1][C][O][C][Ring2][Ring1][=Branch1][=C][Ring1][#Branch1]

The molecule is a cyclic ketone isolated from the bark of Morella species and has been shown to exhibit cytotoxic activity against cancer cells. It has a role as an antineoplastic agent and a plant metabolite. It is a diarylheptanoid, an aromatic ether, a member of methoxybenzenes, a member of phenols and a cyclic ketone.

SMILES: COc1c2cc(c(O)c1OC)CCCCC(=O)CCc1ccc(O)c-2c1
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][C][=C][Branch2][Ring1][Ring1][C@@H1][C][O][C][=C][C][Branch1][C][O][=C][C][=C][Ring1][#Branch1][C@@H1][Ring1][O][O][C][Branch1][C][O][=C][Ring2][Ring1][Ring1]

The molecule is a member of the class of hydroxyisoflavans that is isoflavan-4-ol which is substituted at positions 7, 2' and 4' by hydroxy groups (the 3R,4R stereoisomer). It is a member of hydroxyisoflavans and a member of resorcinols.

SMILES: Oc1ccc(C2COc3cc(O)ccc3C2O)c(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][=O][N][C@H1][Branch1][S][C][C][=C][C][=C][C][=C][C][=C][C][Ring1][=Branch1][=C][Ring1][#Branch2][C][=Branch1][C][=O][N][C@H1][Branch1][=N][C][C][=C][C][=C][Branch1][C][Cl][C][=C][Ring1][#Branch1][C][=Branch1][C][=O][N][C@H1][Branch1][#Branch2][C][C][=C][C][=C][N][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][C@@H1][Branch1][Ring1][C][O][C][=Branch1][C][=O][N][C@@H1][Branch1][=N][C][C][=C][C][=C][Branch1][C][O][C][=C][Ring1][#Branch1][C][=Branch1][C][=O][N][C@H1][Branch1][#Branch2][C][C][C][N][C][Branch1][C][N][=O][C][=Branch1][C][=O][N][C@@H1][Branch1][#Branch1][C][C][Branch1][C][C][C][C][=Branch1][C][=O][N][C@@H1][Branch1][#Branch2][C][C][C][N][=C][Branch1][C][N][N][C][=Branch1][C][=O][N][C][C][C][C@H1][Ring1][Branch1][C][=Branch1][C][=O][N][C@H1][Branch1][C][C][C][Branch1][C][N][=O]

The molecule is a synthetic ten-membered oligopeptide comprising N-acetyl-3-(naphthalen-2-yl)-D-alanyl, 4-chloro-D-phenylalanyl, 3-(pyridin-3-yl)-D-alanyl, L-seryl, L-tyrosyl, N(5)-carbamoyl-D-ornithyl, L-leucyl, L-arginyl, L-prolyl, and D-alaninamide residues coupled in sequence. A gonadotrophin-releasing hormone (GnRH) antagonist, it is used for treatment of infertility and of hormone-sensitive cancers of the prostate and breast. It has a role as a GnRH antagonist and an antineoplastic agent.

SMILES: CC(=O)NC(Cc1ccc2ccccc2c1)C(=O)NC(Cc1ccc(Cl)cc1)C(=O)NC(Cc1cccnc1)C(=O)NC(CO)C(=O)NC(Cc1ccc(O)cc1)C(=O)NC(CCCNC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCCN=C(N)N)C(=O)N1CCCC1C(=O)NC(C)C(N)=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][C][=C][N][Branch2][Ring2][#Branch2][C@@H1][O][C@H1][Branch2][Ring1][O][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C@@H1][Branch1][C][O][C@H1][Ring2][Ring1][Ring2][O][C][=Branch1][C][=O][NH1][Ring2][Ring1][N]

The molecule is trianion of UTP arising from deprotonation of three of the OH groups from the triphosphate moiety. It is a conjugate base of an UTP.

SMILES: O=c1ccn(C2OC(COP(=O)([O-])OP(=O)([O-])OP(=O)([O-])O)C(O)C2O)c(=O)[nH]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>

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

The molecule is a linear tetrasaccharide consisting of two adjacent D-galactose residues and two adjacent beta-D-glucose residues (one at the reducing end) joined by (1->4) linkages.

SMILES: OCC1OC(OC2C(CO)OC(OC3C(CO)OC(OC4C(CO)OC(O)C(O)C4O)C(O)C3O)C(O)C2O)C(O)C(O)C1O
You are a professional chemist. Your task is to generate a natural, concise, and chemically accurate description of a given molecule.

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

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

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

The molecule is a fatty alcohol consisting of a hydroxy function at C-16 of an unbranched saturated chain of 31 carbon atoms. It is a long-chain fatty alcohol and a secondary alcohol. It derives from a hydride of a hentriacontane.

SMILES: CCCCCCCCCCCCCCCC(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>

[Cl][C][Branch1][C][Cl][C][Branch1][C][Cl][Branch1][C][Cl][Cl]

The molecule is a member of the class of chloroethanes that is ethane in which five of the six hydrogens are replaced by chlorines. A non-flammable, high-boiling liquid (b.p. 161-162℃) with relative density 1.67 and an odour resembling that of chloroform, it is used as a solvent for oil and grease, in metal cleaning, and in the separation of coal from impurities. It has a role as a non-polar solvent.

SMILES: ClC(Cl)C(Cl)(Cl)Cl