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

The molecule is a linear pentasaccharide comprising one glucose (at the reducing end) and four mannose residues joined by sequential alpha-(1->6)-, alpha-(1->2)-, alpha-(1->2)- and alpha-(1->2)-linkages.

SMILES: OCC1OC(OCC2OC(OC3C(OC4C(OC5C(O)OC(CO)C(O)C5O)OC(CO)C(O)C4O)OC(CO)C(O)C3O)C(O)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>

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

The molecule is a xanthene dye that is highly fluorescent, detectable even when present in minute quantities. Used forensically to detect traces of blood, in analytical chemistry as an indicator in silver nitrate titrations and in microscopy. It has a role as a radioopaque medium and a fluorescent dye. It is a xanthene dye, a gamma-lactone, a polyphenol, an oxaspiro compound, a member of 2-benzofurans and an organic heteropentacyclic compound. It derives from a fluoran.

SMILES: O=C1OC2(c3ccc(O)cc3Oc3cc(O)ccc32)c2ccccc21
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][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][O]

The molecule is an ultra-long-chain primary fatty alcohol that is dotriacontan-1-ol substituted by a methyl group at position 30. It derives from a dotriacontan-1-ol.

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

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

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

[C][S][C][C][C][N]

The molecule is a derivative of propylamine having a methylmercapto group at the 3-position. It is a primary amino compound and an organic sulfide. It derives from a 3-aminopropane-1-thiol and a propylamine. It is a conjugate base of a 3-methylthiopropylaminium.

SMILES: CSCCCN
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][=Branch1][C][=O][C][=Branch1][C][=O][O-1]

The molecule is a dicarboxylic acid dianion obtained by deprotonation of the carboxy groups of (4Z)-2-oxohept-4-enedioic acid; major species at pH 7.3. It is a conjugate base of a (4Z)-2-oxohept-4-enedioic acid. It is a tautomer of a (2Z,4Z)-2-hydroxyhepta-2,4-dienedioate.

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

The molecule is a beta-D-galactosyl-N-acylsphingosine in which the acyl group is specified as octadecanoyl. It has a role as a mouse metabolite. It derives from an octadecanoic acid.

SMILES: CCCCCCCCCCCCCC=CC(O)C(COC1OC(CO)C(O)C(O)C1O)NC(=O)CCCCCCCCCCCCCCCCC
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][Branch1][C][C][C][=C][C][Branch1][#Branch2][C][C][C][C][C][=Branch1][C][=O][O-1][=C][Ring1][=C][O][C]

The molecule is a monocarboxylic acid anion that is the conjugate base of 5-(2,3-dimethoxy-4-methylphenyl)pentanoic acid, formed by proton loss from the carboxy group. It is a conjugate base of a 5-(2,3-dimethoxy-4-methylphenyl)pentanoic acid.

SMILES: COc1c(C)ccc(CCCCC(=O)[O-])c1OC
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][Branch1][S][C][/C][=C][/C][C][C][C][C][C][C][C][=Branch1][C][=O][O][O][P][=Branch1][C][=O][Branch1][C][O][O]

The molecule is a carboxyalkyl phosphate that is (9E)-octadecenoic acid carrying a phosphonooxy substituent at position 12. It derives from an elaidic acid. It is a conjugate acid of a (9E)-12-(phosphonooxy)octadecenoate(3-).

SMILES: CCCCCCC(CC=CCCCCCCCC(=O)O)OP(=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][O][C][O][Ring1][Branch1]

The molecule is a cyclic acetal that is pentane in which the carbon atoms at positions 1 and 3 are replaced by oxygen atoms respectively. It is a dioxolane and a cyclic acetal.

SMILES: C1COCO1
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][Branch1][C][C][Branch1][C][C][/C][=C][/C][=Branch1][C][=O][C@][Branch1][C][C][Branch1][C][O][C@H1][C@H1][Branch1][C][O][C][C@@][Branch1][C][C][C@@H1][C][C][=C][C@@H1][Branch1][P][C][C@H1][Branch1][C][O][C][=Branch1][C][=O][C][Ring1][Branch2][Branch1][C][C][C][C@][Ring1][=C][Branch1][C][C][C][=Branch1][C][=O][C][C@][Ring2][Ring1][=Branch2][Ring2][Ring1][Branch1][C]

The molecule is a cucurbitacin in which a lanostane skeleton is multi-substituted with hydroxy, methyl and oxo substituents, with unsaturation at positions 5 and 23; a hydroxy function at C-25 is acetylated. It is a cucurbitacin, a secondary alpha-hydroxy ketone and a tertiary alpha-hydroxy ketone. It derives from a hydride of a lanostane.

SMILES: CC(=O)OC(C)(C)C=CC(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(CC(O)C(=O)C4(C)C)C3(C)C(=O)CC12C
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@H1][Branch1][Branch2][C][C][=C][Branch1][C][C][C][C][C][=C][Branch1][C][O][C][=C][Branch1][C][O][C][=C][Ring1][Branch2][O][C@H1][Branch1][=N][C][=C][Branch1][C][O][C][=C][C][=C][Ring1][#Branch1][O][C][C][Ring1][=C][=O]

The molecule is a tetrahydroxyflavanone that is (2S)-flavanone substituted by hydroxy groups at positions 5, 7, 2' and 6' and a lavandulyl group at position 8. Isolated from Sophora exigua and Artemisia indica, it exhibits antimalarial activity. It has a role as a metabolite and an antimalarial. It derives from a (2S)-flavanone.

SMILES: C=C(C)C(CC=C(C)C)Cc1c(O)cc(O)c2c1OC(c1c(O)cccc1O)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][S][C][C][C][Branch1][C][N][C][=Branch1][C][=O][O]

The molecule is a non-proteinogenic alpha-amino acid that is methionine in which the S-methyl group is replaced by an S-ethyl group. It is an organic sulfide and a non-proteinogenic alpha-amino acid.

SMILES: CCSCCC(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][=C][C][=C][Branch2][Ring1][=Branch1][C][C@@H1][NH2+1][C][C][C][=C][C][Branch1][C][O][=C][Branch1][C][O][C][=C][Ring1][Branch2][Ring1][N][C][=C][Ring2][Ring1][Ring1]

The molecule is an organic cation that is the conjugate base of (S)-norcoclaurine: major species at pH 7.3. It is an organic cation and an ammonium ion derivative. It is a conjugate acid of a (S)-norcoclaurine.

SMILES: Oc1ccc(CC2[NH2+]CCc3cc(O)c(O)cc32)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][O][C][=Branch1][C][=O][/C][=C][/C][=C][C][Branch1][C][O][=C][C][=C][Ring1][#Branch1][O]

The molecule is a cinnamate ester that is the methyl ester of 2,5-dihydroxycinnamic acid. It has a role as a human urinary metabolite. It is a cinnamate ester, a member of hydroquinones and a methyl ester.

SMILES: COC(=O)C=Cc1cc(O)ccc1O
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][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][C][=C][N][Ring1][Branch1][C][C][C][Ring1][Branch1][C][=Branch1][C][=O][O]

The molecule is a racemate comprising equimolar amounts of (R)-(+)- and (S)-(-)-5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylic acid. While only the (S)-(-) enantiomer is a COX1 and COX2 inhibitor, the (R)-(+) enantiomer exhibits potent analgesic activity. A non-steroidal anti-inflammatory drug, ketorolac is mainly used (generally as the tromethamine salt) for its potent analgesic properties in the short-term management of post-operative pain, and in eye drops to relieve the ocular itching associated with seasonal allergic conjunctivitis. It was withdrawn from the market in many countries in 1993 following association with haemorrhage and renal failure. It has a role as a cyclooxygenase 2 inhibitor, a cyclooxygenase 1 inhibitor, a non-steroidal anti-inflammatory drug and an analgesic. It contains a (R)-ketorolac and a (S)-ketorolac. It is a conjugate acid of a ketorolac(1-).

SMILES: O=C(c1ccccc1)c1ccc2n1CCC2C(=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][=Branch1][C][=O][C][C][C][=Branch1][C][=O][O]

The molecule is a dicarboxylic acid monoamide of succinic acid. It has a role as a metabolite. It derives from a succinic acid. It is a conjugate acid of a succinamate.

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

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

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

[C][C][=C][C][=Branch1][C][=O][O][C][=C][Branch1][C][F][C][Branch1][#Branch2][O][P][=Branch1][C][=O][Branch1][C][O][O][=C][Branch1][C][F][C][=C][Ring2][Ring1][C][Ring1][=N]

The molecule is a member of coumarins. It derives from a coumarin. It is a conjugate acid of a 6,8-difluoro-4-methylumbelliferyl phosphate (2-).

SMILES: Cc1cc(=O)oc2c(F)c(OP(=O)(O)O)c(F)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][=Branch1][C][=O][N][C][=C][C][=N][C][=Branch1][C][=O][NH1][Ring1][#Branch1]

The molecule is a pyrimidone that is cytosine bearing an N(4)-acetyl substituent. It is a pyrimidone, a nucleobase analogue and a member of acetamides. It derives from a cytosine.

SMILES: CC(=O)Nc1ccnc(=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>

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

The molecule is a three-membered deoxy oligosaccharide which has a 2-acetamido-2,3-dideoxy-D-ribo-hexose unit at the reducing end with an alpha-D-galactosyl-(1->3)-beta-D-galactosyl group attached at the 4-position. It is an amino trisaccharide, a deoxy oligosaccharide derivative and a glucosamine oligosaccharide.

SMILES: CC(=O)NC1CC(OC2OC(CO)C(O)C(OC3OC(CO)C(O)C(O)C3O)C2O)C(CO)OC1O