Vinylogous acids

4-Pyrazolecarboxylic acid, 97%

CAS: 37718-11-9 Molecular Formula: C₄H₄N₂O₂ Molecular Weight (g/mol): 112.09 MDL Number: MFCD00011558 InChI Key: IMBBXSASDSZJSX-UHFFFAOYSA-N Synonym: 4-pyrazolecarboxylic acid,4-carboxypyrazole,pyrazole-4-carboxylic acid,unii-4xjz84gv8e,1h-pyrazole-4-carboxylicacid,4-carboxy-1h-pyrazole,4xjz84gv8e,pyrazole-4-carboxylic,pubchem13293,pubchem22749 PubChem CID: 3015937 IUPAC Name: 1H-pyrazole-4-carboxylic acid SMILES: C1=C(C=NN1)C(=O)O

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4-Hydroxy-6-methyl-2-pyrone, 98%

CAS: 675-10-5 Molecular Formula: C6H6O3 Molecular Weight (g/mol): 126.11 MDL Number: MFCD00006641,MFCD18820248 InChI Key: OOKCZXGEYPSNIM-UHFFFAOYSA-N Synonym: 4-hydroxy-6-methyl-2-pyrone,2-hydroxy-6-methyl-4h-pyran-4-one,4-hydroxy-6-methyl-2h-pyran-2-one,triacetic acid lactone,triacetate lactone,2h-pyran-2-one, 4-hydroxy-6-methyl,6-methyl-4-hydroxypyron-2,unii-s1s883s4ee,6-methyl-4-hydroxy-2-pyrone,ccris 3600 PubChem CID: 54675757 ChEBI: CHEBI:16458 IUPAC Name: 4-hydroxy-6-methylpyran-2-one SMILES: CC1=CC(=O)C=C(O)O1

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4,5,6,7-Tetrahydropyrazolo[1,5-a]pyridine-3-carboxylic acid, 97%

CAS: 307307-97-7 Molecular Formula: C₈H₁₀N₂O₂ Molecular Weight (g/mol): 166.18 MDL Number: MFCD09056813 InChI Key: VOAKNFVZEGNOKV-UHFFFAOYSA-N Synonym: 4,5,6,7-tetrahydropyrazolo 1,5-a pyridine-3-carboxylic acid,4h,5h,6h,7h-pyrazolo 1,5-a pyridine-3-carboxylic acid,pyrazolo 1,5-a pyridine-3-carboxylic acid, 4,5,6,7-tetrahydro,4,5,6,7-tetrahydro-pyrazolo 1,5-a pyridine-3-carboxylic acid,pubchem23924,4,5,6,7-tetrahydropyrazolo 1,5-a pyridine-3-carbox,4?5?6?7-tetrahydropyrazolo 1?5-a pyridine-3-carboxylic acid,pyrazolo 1,5-a pyridine-3-carboxylicacid, 4,5,6,7-tetrahydro PubChem CID: 21941376 IUPAC Name: 4,5,6,7-tetrahydropyrazolo[1,5-a]pyridine-3-carboxylic acid SMILES: C1CCN2C(=C(C=N2)C(=O)O)C1

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Ethyl 2-amino-1-cyclopentene-1-carboxylate, 99%, Thermo Scientific™

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3-Hydroxyphthalic anhydride, 97%

CAS: 37418-88-5 Molecular Formula: C₈H₄O₄ Molecular Weight (g/mol): 164.12 MDL Number: MFCD00011557 InChI Key: CCTOEAMRIIXGDJ-UHFFFAOYSA-N Synonym: 3-hydroxyphthalic anhydride,4-hydroxyisobenzofuran-1,3-dione,3-hydroxyphthalic acid anhydride,1,3-isobenzofurandione, 4-hydroxy,4-hydroxy-isobenzofuran-1,3-dione,phthalic anhydride, 3-hydroxy,4-hydroxy-1,3-dihydro-2-benzofuran-1,3-dione,1,3-isobenzofurandione,4-hydroxy,3-hydroxyphthalicanhydride,3-hydroxyphthalic anhydride treated .beta.-lactoglobulin from bovine whey PubChem CID: 96580 IUPAC Name: 4-hydroxy-2-benzofuran-1,3-dione SMILES: C1=CC2=C(C(=C1)O)C(=O)OC2=O

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Hypoxanthine, 99.5%

CAS: 68-94-0 Molecular Formula: C5H4N4O Molecular Weight (g/mol): 136.11 MDL Number: MFCD00005725 InChI Key: FDGQSTZJBFJUBT-UHFFFAOYSA-N Synonym: hypoxanthine,6-hydroxypurine,9h-purin-6-ol,sarkin,6-oxopurine,sarcine,sarkine,3h-purin-6-ol,7h-purin-6-ol,purin-6 1h-one PubChem CID: 790 ChEBI: CHEBI:17368 SMILES: O=C1N=CNC2=C1NC=N2

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Antipyrine, 98%

CAS: 60-80-0 Molecular Formula: C11H12N2O Molecular Weight (g/mol): 188.23 MDL Number: MFCD00003146 InChI Key: VEQOALNAAJBPNY-UHFFFAOYSA-N Synonym: antipyrine,phenazone,antipyrin,phenazon,analgesine,anodynine,anodynin,azophen,fenazone,2,3-dimethyl-1-phenyl-5-pyrazolone PubChem CID: 2206 ChEBI: CHEBI:31225 IUPAC Name: 1,5-dimethyl-2-phenylpyrazol-3-one SMILES: CC1=CC(=O)N(N1C)C2=CC=CC=C2

Hypoxanthine, 99%

CAS: 68-94-0 Molecular Formula: C5H4N4O Molecular Weight (g/mol): 136.11 MDL Number: MFCD00005725 InChI Key: FDGQSTZJBFJUBT-UHFFFAOYSA-N Synonym: hypoxanthine,6-hydroxypurine,9h-purin-6-ol,sarkin,6-oxopurine,sarcine,sarkine,3h-purin-6-ol,7h-purin-6-ol,purin-6 1h-one PubChem CID: 790 ChEBI: CHEBI:17368 IUPAC Name: 3,7-dihydropurin-6-one SMILES: O=C1N=CNC2=C1NC=N2

4-Aminoantipyrine, 98%

CAS: 83-07-8 Molecular Formula: C₁₁H₁₃N₃O Molecular Weight (g/mol): 203.25 MDL Number: MFCD00003145 InChI Key: RLFWWDJHLFCNIJ-UHFFFAOYSA-N Synonym: 4-aminoantipyrine,ampyrone,metapirazone,aminoantipyrine,solvapyrin-a,aminoazophene,4-aminophenazone,4-aminoantipyrene,aminoantipyrin,solnapyrin-a PubChem CID: 2151 ChEBI: CHEBI:59026 IUPAC Name: 4-amino-1,5-dimethyl-2-phenylpyrazol-3-one SMILES: CC1=C(C(=O)N(N1C)C2=CC=CC=C2)N

3,4-Dihydroxy-3-cyclobutene-1,2-dione, 99%

CAS: 2892-51-5 MDL Number: MFCD00001334 InChI Key: PWEBUXCTKOWPCW-UHFFFAOYSA-N Synonym: squaric acid,3,4-dihydroxy-3-cyclobutene-1,2-dione,quadratic acid,3-cyclobutene-1,2-dione, 3,4-dihydroxy,quadratsaeure,cyclobutenedione, dihydroxy,1,2-diketo-3,4-dihydroxycyclobutene,dihydroxycyclobutenedione,unii-svr9d0vodw,dihydroxycyclobut-3-ene-1,2-dione PubChem CID: 17913 ChEBI: CHEBI:52141 IUPAC Name: 3,4-dihydroxycyclobut-3-ene-1,2-dione SMILES: C1(=C(C(=O)C1=O)O)O

2,5-Dimethyl-4-hydroxy-3(2H)-furanone 98.0+%, TCI America™

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CAS: 3658-77-3 Molecular Formula: C6H8O3 Molecular Weight (g/mol): 128.127 MDL Number: MFCD00010706 InChI Key: INAXVXBDKKUCGI-UHFFFAOYSA-N Synonym: Furaneol, 4-Hydroxy-2,5-dimethyl-3(2H)-furanone PubChem CID: 19309 ChEBI: CHEBI:76247 IUPAC Name: 4-hydroxy-2,5-dimethylfuran-3-one SMILES: CC1C(=O)C(=C(O1)C)O

4-Aminoantipyrine 99.0+%, TCI America™

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CAS: 83-07-8 Molecular Formula: C11H13N3O Molecular Weight (g/mol): 203.245 MDL Number: MFCD00003145 InChI Key: RLFWWDJHLFCNIJ-UHFFFAOYSA-N Synonym: 4-aminoantipyrine,ampyrone,metapirazone,aminoantipyrine,solvapyrin-a,aminoazophene,4-aminophenazone,4-aminoantipyrene,aminoantipyrin,solnapyrin-a PubChem CID: 2151 ChEBI: CHEBI:59026 IUPAC Name: 4-amino-1,5-dimethyl-2-phenylpyrazol-3-one SMILES: CC1=C(C(=O)N(N1C)C2=CC=CC=C2)N

3,4-Dihydro-2H-pyran-5-carbaldehyde, Thermo Scientific™

CAS: 25090-33-9 Molecular Formula: C6H8O2 Molecular Weight (g/mol): 112.128 MDL Number: MFCD00085019 InChI Key: WWZVSCJTMPYTLY-UHFFFAOYSA-N PubChem CID: 2736151 IUPAC Name: 3,4-dihydro-2H-pyran-5-carbaldehyde SMILES: C1CC(=COC1)C=O

Ethyl (ethoxymethylene)cyanoacetate, 98%

CAS: 94-05-3 Molecular Formula: C8H11NO3 Molecular Weight (g/mol): 169.18 MDL Number: MFCD00009136 InChI Key: KTMGNAIGXYODKQ-SREVYHEPSA-N Synonym: ethyl ethoxymethylene cyanoacetate,e-ethyl 2-cyano-3-ethoxyacrylate,ethyl 2-cyano-3-ethoxyacrylate,ethyl 3-ethoxy-2-cyanoacrylate,ethyl 2e-2-cyano-3-ethoxyprop-2-enoate,ethyl cyano ethoxymethylene acetate,2-propenoic acid, 2-cyano-3-ethoxy-, ethyl ester,2-cyano-3-ethoxy-2-propenoic acid ethyl ester,2-cyano-3-ethoxyacrylic acid ethyl ester,ethyl 2e-2-cyano-3-ethoxy-2-propenoate PubChem CID: 1715183 IUPAC Name: ethyl (E)-2-cyano-3-ethoxyprop-2-enoate SMILES: CCO\C=C(\C#N)C(=O)OCC

4-Ethoxymethylene-2-phenyloxazolin-5-one, 98+%

CAS: 15646-46-5 Molecular Formula: C12H11NO3 Molecular Weight (g/mol): 217.224 MDL Number: MFCD00003204 InChI Key: SJHPCNCNNSSLPL-NTMALXAHSA-N Synonym: oxazolone,oxazolone sensitizing agent,5 4h-oxazolone, 4-ethoxymethylene-2-phenyl,unii-78il0j7n72,4-ethoxymethylene-2-phenyl-2-oxazolin-5-one,4-ethoxymethylene-2-phenyloxazolin-5-one,4-ethoxymethylene-2-phenyl-2-oxazoline-5-one,4z-4-ethoxymethylidene-2-phenyl-1,3-oxazol-5-one,2-oxazolin-5-one, 4-ethoxymethylene-2-phenyl,4-ethoxymethylene-2-phenyloxazolone PubChem CID: 1712094 IUPAC Name: (4Z)-4-(ethoxymethylidene)-2-phenyl-1,3-oxazol-5-one SMILES: CCOC=C1C(=O)OC(=N1)C2=CC=CC=C2