Vinylogous acids

Methyl 4-bromo-3-hydroxythiophene-2-carboxylate, 97%

CAS: 95201-93-7 Molecular Formula: C6H5BrO3S Molecular Weight (g/mol): 237.067 MDL Number: MFCD00052081 InChI Key: UFTXASQYKJFRKI-UHFFFAOYSA-N Synonym: 2z-4-bromo-2-hydroxy methoxy methylidene thiophen-3-one,2-thiophenecarboxylic acid, 4-bromo-3-hydroxy-, methyl ester,acmc-20akgk,maybridge1_004012,methyl 4-bromo-3-hydroxy-2-thiophenecarboxylate,methyl-3-hydroxy-4-bromo-2-thiophenecarboxylate,methyl-4-bromo-3-hydroxy-2-thiophenecarboxylate,4-bromo-3-oxo-2-thienylidene-methoxy-methanolate,4-bromo-2-hydroxy methoxy methylidene thiophen-3-one,2-thiophenecarboxylicacid,4-bromo-3-hydroxy-,methyl ester PubChem CID: 2777611 IUPAC Name: methyl 4-bromo-3-hydroxythiophene-2-carboxylate SMILES: COC(=O)C1=C(C(=CS1)Br)O

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

Croconic acid, 98%

CAS: 488-86-8 Molecular Formula: C₅H₂O₅ Molecular Weight (g/mol): 142.066 MDL Number: MFCD00181389 InChI Key: RBSLJAJQOVYTRQ-UHFFFAOYSA-N Synonym: croconic acid,crocic acid,4,5-dihydroxy-4-cyclopentene-1,2,3-trione,unii-6hgy35uxaa,6hgy35uxaa,4-cyclopentene-1,2,3-trione, 4,5-dihydroxy,croconicacid,4,5-dihydroxy-4-cyclopentene-1,2,3-trione # PubChem CID: 546874 IUPAC Name: 4,5-dihydroxycyclopent-4-ene-1,2,3-trione SMILES: C1(=C(C(=O)C(=O)C1=O)O)O

Diethyl Ethoxymethylenemalonate, 99+%

CAS: 87-13-8 Molecular Formula: C₁₀H₁₆O₅ Molecular Weight (g/mol): 216.23 MDL Number: MFCD00009148 InChI Key: LTMHNWPUDSTBKD-UHFFFAOYSA-N Synonym: diethyl ethoxymethylenemalonate,diethyl 2-ethoxymethylene malonate,ethoxymethylenemalonic acid diethyl ester,diethyl ethoxymethylene malonate,diethyl emme,propanedioic acid, ethoxymethylene-, diethyl ester,diethylethoxymethylenemalonate,1,3-diethyl 2-ethoxymethylidene propanedioate,diethyl ethoxymethylidene propanedioate PubChem CID: 6871 IUPAC Name: diethyl 2-(ethoxymethylidene)propanedioate SMILES: CCOC=C(C(=O)OCC)C(=O)OCC

1-Methyl-5-phenoxy-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid, 97%, Thermo Scientific™

CAS: 921939-08-4 Molecular Formula: C12H9F3N2O3 Molecular Weight (g/mol): 286.21 MDL Number: MFCD06203565 InChI Key: JLFWKPKAZSVCKI-UHFFFAOYSA-N Synonym: 1-methyl-5-phenoxy-3-trifluoromethyl-1h-pyrazole-4-carboxylic acid,1-methyl-5-phenoxy-3-trifluoromethyl pyrazole-4-carboxylic acid PubChem CID: 24229721 IUPAC Name: 1-methyl-5-phenoxy-3-(trifluoromethyl)pyrazole-4-carboxylic acid SMILES: CN1N=C(C(C(O)=O)=C1OC1=CC=CC=C1)C(F)(F)F

3-Amino-4-carbethoxypyrazole, 99%

Ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate, 99%, Thermo Scientific™

CAS: 4506-71-2 InChI Key: CDYVTVLXEWMCHU-UHFFFAOYSA-N PubChem CID: 78262 IUPAC Name: ethyl 2-amino-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate SMILES: CCOC(=O)C1=C(SC2=C1CCCC2)N

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

2,2,6-Trimethyl-1,3-dioxin-4-one, cont. up to ca 6% acetone

CAS: 5394-63-8 Molecular Formula: C7H10O3 Molecular Weight (g/mol): 142.154 MDL Number: MFCD00040468 InChI Key: XFRBXZCBOYNMJP-UHFFFAOYSA-N Synonym: 2,2,6-trimethyl-4h-1,3-dioxin-4-one,2,2,4-trimethyl-6-keto-1,3-dioxin,diketene acetone adduct,4h-1,3-dioxin-4-one, 2,2,6-trimethyl,2,2,6-trimethyl-1,3-dioxen-4-one,2,2,6-trimethyl-1,3-dioxine-4-one,2,2,6-trimethyl-1,3 dioxin-4-one,pubchem20364,2,2,6-trimethyl-4h-1,3-dioxin-4-on,acmc-1akcb PubChem CID: 79368 IUPAC Name: 2,2,6-trimethyl-1,3-dioxin-4-one SMILES: CC1=CC(=O)OC(O1)(C)C

4-Methoxy-6-methyl-2H-pyran-2-one, 97%, Thermo Scientific Chemicals

CAS: 672-89-9 Molecular Formula: C7H8O3 Molecular Weight (g/mol): 140.14 MDL Number: MFCD00006640 InChI Key: MTZAUZNQAMNFME-UHFFFAOYSA-N Synonym: 4-methoxy-6-methyl-2h-pyran-2-one,methyltriacetolactone,methyltriacetolacton,2h-pyran-2-one, 4-methoxy-6-methyl,4-methoxy-6-methyl-pyran-2-one,methyltriacetolacton german,4-methoxy-6-methyl-2-pyrone,4mhp,wln: t6ovj do1 f1,4-methoxy-6-methyl-2-pyranone PubChem CID: 12651 IUPAC Name: 4-methoxy-6-methylpyran-2-one SMILES: COC1=CC(=O)OC(C)=C1

2-(1H-Pyrazol-1-yl)benzoic acid, ≥97%, Thermo Scientific™

CAS: 55317-53-8 Molecular Formula: C10H8N2O2 Molecular Weight (g/mol): 188.186 MDL Number: MFCD03086184 InChI Key: MHACZVWKWUMHRR-UHFFFAOYSA-N Synonym: 2-1h-pyrazol-1-yl benzoic acid,2-1-pyrazolyl benzoic acid,2-pyrazol-1-yl benzoic acid,benzoic acid, 2-1h-pyrazol-1-yl,2-pyrazol-1-yl-benzoic acid,2-pyrazolylbenzoic acid,pubchem19561,2-1-pyrazolyl benzoicacid,benzoic acid,2-1h-pyrazol-1-yl PubChem CID: 4738383 IUPAC Name: 2-pyrazol-1-ylbenzoic acid SMILES: C1=CC=C(C(=C1)C(=O)O)N2C=CC=N2

Cromolyn sodium salt, 98%

CAS: 15826-37-6 Molecular Formula: C23H14Na2O11 Molecular Weight (g/mol): 512.33 MDL Number: MFCD00057744 InChI Key: VLARUOGDXDTHEH-UHFFFAOYSA-L Synonym: cromolyn sodium,sodium cromoglycate,disodium cromoglycate,sodium cromoglicate,sodium cromolyn,gastrocrom,nasalcrom,cromoglycate disodium,natrium cromoglicat,lomudal PubChem CID: 27503 ChEBI: CHEBI:128458 SMILES: [Na+].[Na+].OC(COC1=C2C(=O)C=C(OC2=CC=C1)C([O-])=O)COC1=C2C(=O)C=C(OC2=CC=C1)C([O-])=O

Ethyl 5-amino-1-methylpyrazole-4-carboxylate, 97%, Thermo Scientific™

CAS: 31037-02-2 Molecular Formula: C7H11N3O2 Molecular Weight (g/mol): 169.18 MDL Number: MFCD00051652 InChI Key: MEUSJJFWVKBUFP-UHFFFAOYSA-N Synonym: ethyl 5-amino-1-methyl-1h-pyrazole-4-carboxylate,5-amino-1-methyl-1h-pyrazole-4-carboxylic acid ethyl ester,ethyl5-amino-1-methylpyrazole-4-carboxylate,1h-pyrazole-4-carboxylic acid, 5-amino-1-methyl-, ethyl ester,5-amino-1-methylpyrazole-4-carboxylic acid ethyl ester,ethyl 5-amino-1-methyl-4-pyrazolecarboxylate,ethyl 5-amino-1-methyl-pyrazole-4-carboxylate,acmc-1agpk,maybridge1_003833,ethyl-5-amino-1-methyl-1h-pyrazol-4-carboxylat PubChem CID: 271299 SMILES: CCOC(=O)C1=C(N)N(C)N=C1

1H-Pyrazole-4-carboxylic acid, 97%

CAS: 37718-11-9 Molecular Formula: C4H4N2O2 Molecular Weight (g/mol): 112.088 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

4-Aminoantipyrine 99.0+%, TCI America™

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