CAS RN: 68427-26-9
CAS Name: 4-(2-naphthalenyl)-2-butanone
OPENEYE Name: 4-(2-naphthyl)butan-2-one
IUPAC Name: 4-naphthalen-2-ylbutan-2-one
SYSTEMATIC NAME: 4-naphthalen-2-ylbutan-2-one
MOLECULAR FORMULA: C14H14O
MOLECULAR WEIGHT: 198.26036
SMILES: CC(=O)CCC1=CC2=CC=CC=C2C=C1
Structure:
CAS RN: 33744-50-2
CAS Name: 1-(1-naphthalenyl)-2-propanone
OPENEYE Name: 1-(1-naphthyl)propan-2-one
IUPAC Name: 1-naphthalen-1-ylpropan-2-one
SYSTEMATIC NAME: 1-naphthalen-1-ylpropan-2-one
MOLECULAR FORMULA: C13H12O
MOLECULAR WEIGHT: 184.23378
SMILES: CC(=O)CC1=CC=CC2=CC=CC=C21
Structure:
CAS RN: 52481-82-0
CAS Name: 5,5-diphenyl-2-oxazolidinone
OPENEYE Name: 5,5-diphenyloxazolidin-2-one
IUPAC Name: 5,5-diphenyl-1,3-oxazolidin-2-one
SYSTEMATIC NAME: 5,5-diphenyl-1,3-oxazolidin-2-one
MOLECULAR FORMULA: C15H13NO2
MOLECULAR WEIGHT: 239.26922
SMILES: C1C(OC(=O)N1)(C2=CC=CC=C2)C3=CC=CC=C3
Structure:
CAS RN: 88368-75-6
CAS Name: 3-hydroxy-3,3-diphenylpropanehydrazide
OPENEYE Name: 3-hydroxy-3,3-diphenyl-propanehydrazide
IUPAC Name: 3-hydroxy-3,3-diphenylpropanehydrazide
SYSTEMATIC NAME: 3-oxidanyl-3,3-diphenyl-propanehydrazide
MOLECULAR FORMULA: C15H16N2O2
MOLECULAR WEIGHT: 256.29974
SMILES: C1=CC=C(C=C1)C(CC(=O)NN)(C2=CC=CC=C2)O
Structure:
CAS RN: 63461-25-6
CAS Name: 5,5-diethyl-2-oxazolidinone
OPENEYE Name: 5,5-diethyloxazolidin-2-one
IUPAC Name: 5,5-diethyl-1,3-oxazolidin-2-one
SYSTEMATIC NAME: 5,5-diethyl-1,3-oxazolidin-2-one
MOLECULAR FORMULA: C7H13NO2
MOLECULAR WEIGHT: 143.18362
SMILES: CCC1(CNC(=O)O1)CC
Structure:
CAS RN: 62456-54-6
CAS Name: (1-methoxy-2,2-diphenylethenyl)benzene
OPENEYE Name: (1-methoxy-2,2-diphenyl-vinyl)benzene
IUPAC Name: (1-methoxy-2,2-diphenylethenyl)benzene
SYSTEMATIC NAME: (1-methoxy-2,2-diphenyl-ethenyl)benzene
MOLECULAR FORMULA: C21H18O
MOLECULAR WEIGHT: 286.36702
SMILES: COC(=C(C1=CC=CC=C1)C2=CC=CC=C2)C3=CC=CC=C3
Structure:
CAS RN: 2074-08-0
CAS Name: 2,4-dinitro-N-(1-phenylbutylideneamino)aniline
OPENEYE Name: 2,4-dinitro-N-(1-phenylbutylideneamino)aniline
IUPAC Name: 2,4-dinitro-N-(1-phenylbutylideneamino)aniline
SYSTEMATIC NAME: 2,4-dinitro-N-(1-phenylbutylideneamino)aniline
MOLECULAR FORMULA: C16H16N4O4
MOLECULAR WEIGHT: 328.32264
SMILES: CCCC(=NNC1=C(C=C(C=C1)[N+](=O)[O-])[N+](=O)[O-])C2=CC=CC=C2
Structure:
CAS RN: 42365-04-8
CAS Name: 2,2,2-triphenylacetaldehyde
OPENEYE Name: 2,2,2-triphenylacetaldehyde
IUPAC Name: 2,2,2-triphenylacetaldehyde
SYSTEMATIC NAME: 2,2,2-triphenylethanal
MOLECULAR FORMULA: C20H16O
MOLECULAR WEIGHT: 272.34044
SMILES: C1=CC=C(C=C1)C(C=O)(C2=CC=CC=C2)C3=CC=CC=C3
Structure:
CAS RN: 42746-51-0
CAS Name: 4-methyl-5,5-diphenyl-2-oxazolidinone
OPENEYE Name: 4-methyl-5,5-diphenyl-oxazolidin-2-one
IUPAC Name: 4-methyl-5,5-diphenyl-1,3-oxazolidin-2-one
SYSTEMATIC NAME: 4-methyl-5,5-diphenyl-1,3-oxazolidin-2-one
MOLECULAR FORMULA: C16H15NO2
MOLECULAR WEIGHT: 253.2958
SMILES: CC1C(OC(=O)N1)(C2=CC=CC=C2)C3=CC=CC=C3
Structure:
CAS RN: 5637-51-4
CAS Name: N-(1,2-diphenylethylideneamino)-2,4-dinitroaniline
OPENEYE Name: N-(1,2-diphenylethylideneamino)-2,4-dinitro-aniline
IUPAC Name: N-(1,2-diphenylethylideneamino)-2,4-dinitroaniline
SYSTEMATIC NAME: N-(1,2-diphenylethylideneamino)-2,4-dinitro-aniline
MOLECULAR FORMULA: C20H16N4O4
MOLECULAR WEIGHT: 376.36544
SMILES: C1=CC=C(C=C1)CC(=NNC2=C(C=C(C=C2)[N+](=O)[O-])[N+](=O)[O-])C3=CC=CC=C3
Structure:
CAS RN: 24247-69-6
CAS Name: 4-oxa-2-azaspiro[4.6]undecan-3-one
OPENEYE Name: 4-oxa-2-azaspiro[4.6]undecan-3-one
IUPAC Name: 4-oxa-2-azaspiro[4.6]undecan-3-one
SYSTEMATIC NAME: 4-oxa-2-azaspiro[4.6]undecan-3-one
MOLECULAR FORMULA: C9H15NO2
MOLECULAR WEIGHT: 169.2209
SMILES: C1CCCC2(CC1)CNC(=O)O2
Structure:
CAS RN: 2845-85-4
CAS Name: 4-chlorobenzene-1,3-dicarboxylic acid
OPENEYE Name: 4-chlorobenzene-1,3-dicarboxylic acid
IUPAC Name: 4-chlorobenzene-1,3-dicarboxylic acid
SYSTEMATIC NAME: 4-chloranylbenzene-1,3-dicarboxylic acid
MOLECULAR FORMULA: C8H5ClO4
MOLECULAR WEIGHT: 200.5759
SMILES: C1=CC(=C(C=C1C(=O)O)C(=O)O)Cl
Structure:
CAS RN: 65755-12-6
CAS Name: 2-(5-methyl-1-naphthalenyl)ethanol
OPENEYE Name: 2-(5-methyl-1-naphthyl)ethanol
IUPAC Name: 2-(5-methylnaphthalen-1-yl)ethanol
SYSTEMATIC NAME: 2-(5-methylnaphthalen-1-yl)ethanol
MOLECULAR FORMULA: C13H14O
MOLECULAR WEIGHT: 186.24966
SMILES: CC1=CC=CC2=C1C=CC=C2CCO
Structure:
CAS RN: 69653-22-1
CAS Name: 2-[(3-methylphenyl)methyl]-1-naphthalenecarboxylic acid
OPENEYE Name: 2-(m-tolylmethyl)naphthalene-1-carboxylic acid
IUPAC Name: 2-[(3-methylphenyl)methyl]naphthalene-1-carboxylic acid
SYSTEMATIC NAME: 2-[(3-methylphenyl)methyl]naphthalene-1-carboxylic acid
MOLECULAR FORMULA: C19H16O2
MOLECULAR WEIGHT: 276.32914
SMILES: CC1=CC(=CC=C1)CC2=C(C3=CC=CC=C3C=C2)C(=O)O
Structure:
CAS RN: 35187-29-2
CAS Name: 2-[(4-methyl-1-naphthalenyl)-oxomethyl]benzoic acid
OPENEYE Name: 2-(4-methylnaphthalene-1-carbonyl)benzoic acid
IUPAC Name: 2-(4-methylnaphthalene-1-carbonyl)benzoic acid
SYSTEMATIC NAME: 2-(4-methylnaphthalen-1-yl)carbonylbenzoic acid
MOLECULAR FORMULA: C19H14O3
MOLECULAR WEIGHT: 290.31266
SMILES: CC1=CC=C(C2=CC=CC=C12)C(=O)C3=CC=CC=C3C(=O)O
Structure:
CAS RN: 69653-20-9
CAS Name: 1-[(3-methylphenyl)-oxomethyl]-2-naphthalenecarboxylic acid
OPENEYE Name: 1-(3-methylbenzoyl)naphthalene-2-carboxylic acid
IUPAC Name: 1-(3-methylbenzoyl)naphthalene-2-carboxylic acid
SYSTEMATIC NAME: 1-(3-methylphenyl)carbonylnaphthalene-2-carboxylic acid
MOLECULAR FORMULA: C19H14O3
MOLECULAR WEIGHT: 290.31266
SMILES: CC1=CC=CC(=C1)C(=O)C2=C(C=CC3=CC=CC=C32)C(=O)O
Structure:
CAS RN: 69653-21-0
CAS Name: 2-[(3-methylphenyl)-oxomethyl]-1-naphthalenecarboxylic acid
OPENEYE Name: 2-(3-methylbenzoyl)naphthalene-1-carboxylic acid
IUPAC Name: 2-(3-methylbenzoyl)naphthalene-1-carboxylic acid
SYSTEMATIC NAME: 2-(3-methylphenyl)carbonylnaphthalene-1-carboxylic acid
MOLECULAR FORMULA: C19H14O3
MOLECULAR WEIGHT: 290.31266
SMILES: CC1=CC=CC(=C1)C(=O)C2=C(C3=CC=CC=C3C=C2)C(=O)O
Structure:
CAS RN: 5033-67-0
CAS Name: 2-(2-methylphenyl)-1-phenylethanone
OPENEYE Name: 2-(o-tolyl)-1-phenyl-ethanone
IUPAC Name: 2-(2-methylphenyl)-1-phenylethanone
SYSTEMATIC NAME: 2-(2-methylphenyl)-1-phenyl-ethanone
MOLECULAR FORMULA: C15H14O
MOLECULAR WEIGHT: 210.27106
SMILES: CC1=CC=CC=C1CC(=O)C2=CC=CC=C2
Structure:
CAS RN: 14182-63-9
CAS Name: 2-(4-methylphenyl)-1-(4-morpholinyl)ethanethione
OPENEYE Name: 1-morpholino-2-(p-tolyl)ethanethione
IUPAC Name: 2-(4-methylphenyl)-1-morpholin-4-ylethanethione
SYSTEMATIC NAME: 2-(4-methylphenyl)-1-morpholin-4-yl-ethanethione
MOLECULAR FORMULA: C13H17NOS
MOLECULAR WEIGHT: 235.34518
SMILES: CC1=CC=C(C=C1)CC(=S)N2CCOCC2
Structure:
CAS RN: 36440-64-9
CAS Name: 8-methyl-4,5-dihydrobenzo[e]isobenzofuran-1,3-dione
OPENEYE Name: 8-methyl-4,5-dihydrobenzo[e]isobenzofuran-1,3-dione
IUPAC Name: 8-methyl-4,5-dihydrobenzo[e][2]benzofuran-1,3-dione
SYSTEMATIC NAME: 8-methyl-4,5-dihydrobenzo[e][2]benzofuran-1,3-dione
MOLECULAR FORMULA: C13H10O3
MOLECULAR WEIGHT: 214.2167
SMILES: CC1=CC2=C(CCC3=C2C(=O)OC3=O)C=C1
Structure:
CAS RN: 36440-65-0
CAS Name: 8-methylbenzo[e]isobenzofuran-1,3-dione
OPENEYE Name: 8-methylbenzo[e]isobenzofuran-1,3-dione
IUPAC Name: 8-methylbenzo[e][2]benzofuran-1,3-dione
SYSTEMATIC NAME: 8-methylbenzo[e][2]benzofuran-1,3-dione
MOLECULAR FORMULA: C13H8O3
MOLECULAR WEIGHT: 212.20082
SMILES: CC1=CC2=C(C=C1)C=CC3=C2C(=O)OC3=O
Structure:
CAS RN: 2346-60-3
CAS Name: 2-benzoyl-6-methylbenzoic acid
OPENEYE Name: 2-benzoyl-6-methyl-benzoic acid
IUPAC Name: 2-benzoyl-6-methylbenzoic acid
SYSTEMATIC NAME: 2-methyl-6-(phenylcarbonyl)benzoic acid
MOLECULAR FORMULA: C15H12O3
MOLECULAR WEIGHT: 240.25398
SMILES: CC1=CC=CC(=C1C(=O)O)C(=O)C2=CC=CC=C2
Structure:
CAS RN: 1146-91-4
CAS Name: 2-benzoyl-3-methylbenzoic acid
OPENEYE Name: 2-benzoyl-3-methyl-benzoic acid
IUPAC Name: 2-benzoyl-3-methylbenzoic acid
SYSTEMATIC NAME: 3-methyl-2-(phenylcarbonyl)benzoic acid
MOLECULAR FORMULA: C15H12O3
MOLECULAR WEIGHT: 240.25398
SMILES: CC1=CC=CC(=C1C(=O)C2=CC=CC=C2)C(=O)O
Structure:
CAS RN: 21204-86-4
CAS Name: 3-benzoylbenzoic acid methyl ester
OPENEYE Name: methyl 3-benzoylbenzoate
IUPAC Name: methyl 3-benzoylbenzoate
SYSTEMATIC NAME: methyl 3-(phenylcarbonyl)benzoate
MOLECULAR FORMULA: C15H12O3
MOLECULAR WEIGHT: 240.25398
SMILES: COC(=O)C1=CC=CC(=C1)C(=O)C2=CC=CC=C2
Structure:
CAS RN: 6158-54-9
CAS Name: 4-benzoylbenzoic acid methyl ester
OPENEYE Name: methyl 4-benzoylbenzoate
IUPAC Name: methyl 4-benzoylbenzoate
SYSTEMATIC NAME: methyl 4-(phenylcarbonyl)benzoate
MOLECULAR FORMULA: C15H12O3
MOLECULAR WEIGHT: 240.25398
SMILES: COC(=O)C1=CC=C(C=C1)C(=O)C2=CC=CC=C2
Structure:
CAS RN: 40067-46-7
CAS Name: 1-cyclohexyl-7H-purin-6-one
OPENEYE Name: 1-cyclohexyl-7H-purin-6-one
IUPAC Name: 1-cyclohexyl-7H-purin-6-one
SYSTEMATIC NAME: 1-cyclohexyl-7H-purin-6-one
MOLECULAR FORMULA: C11H14N4O
MOLECULAR WEIGHT: 218.25506
SMILES: C1CCC(CC1)N2C=NC3=C(C2=O)NC=N3
Structure:
CAS RN: 38652-14-1
CAS Name: 1-(4-hydroxyphenyl)-3-methylurea
OPENEYE Name: 1-(4-hydroxyphenyl)-3-methyl-urea
IUPAC Name: 1-(4-hydroxyphenyl)-3-methylurea
SYSTEMATIC NAME: 1-(4-hydroxyphenyl)-3-methyl-urea
MOLECULAR FORMULA: C8H10N2O2
MOLECULAR WEIGHT: 166.1772
SMILES: CNC(=O)NC1=CC=C(C=C1)O
Structure:
CAS RN: 62183-21-5
CAS Name: 1-methyl-3-[2-(methylcarbamoylamino)ethyl]urea
OPENEYE Name: 1-methyl-3-[2-(methylcarbamoylamino)ethyl]urea
IUPAC Name: 1-methyl-3-[2-(methylcarbamoylamino)ethyl]urea
SYSTEMATIC NAME: 1-methyl-3-[2-(methylcarbamoylamino)ethyl]urea
MOLECULAR FORMULA: C6H14N4O2
MOLECULAR WEIGHT: 174.20096
SMILES: CNC(=O)NCCNC(=O)NC
Structure:
CAS RN: 2937-76-0
CAS Name: 1-methyl-3-(methylcarbamoylamino)urea
OPENEYE Name: 1-methyl-3-(methylcarbamoylamino)urea
IUPAC Name: 1-methyl-3-(methylcarbamoylamino)urea
SYSTEMATIC NAME: 1-methyl-3-(methylcarbamoylamino)urea
MOLECULAR FORMULA: C4H10N4O2
MOLECULAR WEIGHT: 146.1478
SMILES: CNC(=O)NNC(=O)NC
Structure:
CAS RN: 38383-43-6
CAS Name: 2-(2,4-dichlorophenoxy)acetic acid 2-hydroxyethyl ester
OPENEYE Name: 2-hydroxyethyl 2-(2,4-dichlorophenoxy)acetate
IUPAC Name: 2-hydroxyethyl 2-(2,4-dichlorophenoxy)acetate
SYSTEMATIC NAME: 2-hydroxyethyl 2-[2,4-bis(chloranyl)phenoxy]ethanoate
MOLECULAR FORMULA: C10H10Cl2O4
MOLECULAR WEIGHT: 265.09
SMILES: C1=CC(=C(C=C1Cl)Cl)OCC(=O)OCCO
Structure:
CAS RN: 84794-72-9
CAS Name: 2-[4-(carboxymethoxy)-3-chlorophenoxy]acetic acid
OPENEYE Name: 2-[4-(carboxymethoxy)-3-chloro-phenoxy]acetic acid
IUPAC Name: 2-[4-(carboxymethoxy)-3-chlorophenoxy]acetic acid
SYSTEMATIC NAME: 2-[3-chloranyl-4-(2-hydroxy-2-oxoethyloxy)phenoxy]ethanoic acid
MOLECULAR FORMULA: C10H9ClO6
MOLECULAR WEIGHT: 260.62786
SMILES: C1=CC(=C(C=C1OCC(=O)O)Cl)OCC(=O)O
Structure:
CAS RN: 21758-94-1
CAS Name: 2-(2-acetyl-4-chlorophenoxy)acetic acid
OPENEYE Name: 2-(2-acetyl-4-chloro-phenoxy)acetic acid
IUPAC Name: 2-(2-acetyl-4-chlorophenoxy)acetic acid
SYSTEMATIC NAME: 2-(4-chloranyl-2-ethanoyl-phenoxy)ethanoic acid
MOLECULAR FORMULA: C10H9ClO4
MOLECULAR WEIGHT: 228.62906
SMILES: CC(=O)C1=C(C=CC(=C1)Cl)OCC(=O)O
Structure:
CAS RN: 22719-87-5
CAS Name: carbonic acid (4-chlorophenyl) ethyl ester
OPENEYE Name: (4-chlorophenyl) ethyl carbonate
IUPAC Name: (4-chlorophenyl) ethyl carbonate
SYSTEMATIC NAME: (4-chlorophenyl) ethyl carbonate
MOLECULAR FORMULA: C9H9ClO3
MOLECULAR WEIGHT: 200.61896
SMILES: CCOC(=O)OC1=CC=C(C=C1)Cl
Structure:
CAS RN: 22876-28-4
CAS Name: carbonic acid (2,4-dichlorophenyl) ethyl ester
OPENEYE Name: (2,4-dichlorophenyl) ethyl carbonate
IUPAC Name: (2,4-dichlorophenyl) ethyl carbonate
SYSTEMATIC NAME: (2,4-dichlorophenyl) ethyl carbonate
MOLECULAR FORMULA: C9H8Cl2O3
MOLECULAR WEIGHT: 235.06402
SMILES: CCOC(=O)OC1=C(C=C(C=C1)Cl)Cl
Structure:
CAS RN: 4475-13-2
CAS Name: 2-(3-oxo-1,3-diphenylpropyl)propanedioic acid
OPENEYE Name: 2-(3-oxo-1,3-diphenyl-propyl)propanedioic acid
IUPAC Name: 2-(3-oxo-1,3-diphenylpropyl)propanedioic acid
SYSTEMATIC NAME: 2-(3-oxidanylidene-1,3-diphenyl-propyl)propanedioic acid
MOLECULAR FORMULA: C18H16O5
MOLECULAR WEIGHT: 312.31664
SMILES: C1=CC=C(C=C1)C(CC(=O)C2=CC=CC=C2)C(C(=O)O)C(=O)O
Structure:
CAS RN: 38474-09-8
CAS Name: 4-(9-anthracenyl)-N,N-dimethylaniline
OPENEYE Name: 4-(9-anthryl)-N,N-dimethyl-aniline
IUPAC Name: 4-anthracen-9-yl-N,N-dimethylaniline
SYSTEMATIC NAME: 4-anthracen-9-yl-N,N-dimethyl-aniline
MOLECULAR FORMULA: C22H19N
MOLECULAR WEIGHT: 297.39296
SMILES: CN(C)C1=CC=C(C=C1)C2=C3C=CC=CC3=CC4=CC=CC=C42
Structure:
CAS RN: 18986-40-8
CAS Name: N-[6-(ethoxycarbonylamino)-4-(2-phenylethoxy)-2-pyridinyl]carbamic acid ethyl ester
OPENEYE Name: ethyl N-[6-(ethoxycarbonylamino)-4-(2-phenylethoxy)-2-pyridyl]carbamate
IUPAC Name: ethyl N-[6-(ethoxycarbonylamino)-4-(2-phenylethoxy)pyridin-2-yl]carbamate
SYSTEMATIC NAME: ethyl N-[6-(ethoxycarbonylamino)-4-(2-phenylethoxy)pyridin-2-yl]carbamate
MOLECULAR FORMULA: C19H23N3O5
MOLECULAR WEIGHT: 373.40302
SMILES: CCOC(=O)NC1=CC(=CC(=N1)NC(=O)OCC)OCCC2=CC=CC=C2
Structure:
CAS RN: 18986-42-0
CAS Name: N-[6-(ethoxycarbonylamino)-4-(3-phenylprop-2-enoxy)-2-pyridinyl]carbamic acid ethyl ester
OPENEYE Name: ethyl N-[4-cinnamyloxy-6-(ethoxycarbonylamino)-2-pyridyl]carbamate
IUPAC Name: ethyl N-[6-(ethoxycarbonylamino)-4-(3-phenylprop-2-enoxy)pyridin-2-yl]carbamate
SYSTEMATIC NAME: ethyl N-[6-(ethoxycarbonylamino)-4-(3-phenylprop-2-enoxy)pyridin-2-yl]carbamate
MOLECULAR FORMULA: C20H23N3O5
MOLECULAR WEIGHT: 385.41372
SMILES: CCOC(=O)NC1=CC(=CC(=N1)NC(=O)OCC)OCC=CC2=CC=CC=C2
Structure:
CAS RN: 18960-90-2
CAS Name: 4-(ethylthio)pyridine-2,6-diamine
OPENEYE Name: 4-ethylsulfanylpyridine-2,6-diamine
IUPAC Name: 4-ethylsulfanylpyridine-2,6-diamine
SYSTEMATIC NAME: 4-ethylsulfanylpyridine-2,6-diamine
MOLECULAR FORMULA: C7H11N3S
MOLECULAR WEIGHT: 169.24734
SMILES: CCSC1=CC(=NC(=C1)N)N
Structure:
CAS RN: 15623-12-8
CAS Name: 4-phenoxypyridine-2,6-diamine
OPENEYE Name: 4-phenoxypyridine-2,6-diamine
IUPAC Name: 4-phenoxypyridine-2,6-diamine
SYSTEMATIC NAME: 4-phenoxypyridine-2,6-diamine
MOLECULAR FORMULA: C11H11N3O
MOLECULAR WEIGHT: 201.22454
SMILES: C1=CC=C(C=C1)OC2=CC(=NC(=C2)N)N
Structure:
CAS RN: 18986-43-1
CAS Name: N-[6-(ethoxycarbonylamino)-4-phenoxy-2-pyridinyl]carbamic acid ethyl ester
OPENEYE Name: ethyl N-[6-(ethoxycarbonylamino)-4-phenoxy-2-pyridyl]carbamate
IUPAC Name: ethyl N-[6-(ethoxycarbonylamino)-4-phenoxypyridin-2-yl]carbamate
SYSTEMATIC NAME: ethyl N-[6-(ethoxycarbonylamino)-4-phenoxy-pyridin-2-yl]carbamate
MOLECULAR FORMULA: C17H19N3O5
MOLECULAR WEIGHT: 345.34986
SMILES: CCOC(=O)NC1=CC(=CC(=N1)NC(=O)OCC)OC2=CC=CC=C2
Structure:
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