Vinylogous acids

4-Aminoantipyrine, BAKER™, J.T. Baker™

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

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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

5-Hydroxyquinoline, 99%

CAS: 578-67-6 Molecular Formula: C9H7NO Molecular Weight (g/mol): 145.161 MDL Number: MFCD00006792 InChI Key: GVNQVWJYDXOLST-UHFFFAOYSA-N Synonym: 5-hydroxyquinoline,quinolin-5-ol,5-quinolinol,5-chinolinol,ccris 4330,gyesayhwismzok-uhfffaoysa-n,5-hydroxyquinoline 5-quinolinol,quinolin-5-one,5-hyroxyquinoline,5-hydroxy quinoline PubChem CID: 11360 IUPAC Name: 1H-quinolin-5-one SMILES: C1=CC(=O)C2=CC=CNC2=C1

Croconic acid disodium salt, 97%

CAS: 14379-00-1 Molecular Formula: C5Na2O5 Molecular Weight (g/mol): 186.03 MDL Number: MFCD00191954 InChI Key: OQXLFPHHAAAVKQ-UHFFFAOYSA-L Synonym: croconic acid disodium salt,croconic acid, disodium salt,disodium trioxocyclopent-1-ene-1,2-bis olate,sodium 3,4,5-trioxocyclopent-1-ene-1,2-bis olate,4,5-dihydroxy-4-cyclopentene-1,2,3-trione disodium salt PubChem CID: 12120285 IUPAC Name: disodium;3,4,5-trioxocyclopentene-1,2-diolate SMILES: [Na+].[Na+].[O-]C1=C([O-])C(=O)C(=O)C1=O

Antipyrine, 99%

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

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

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

3,4-Dihydroxy-3-cyclobutene-1,2-dione, 98+%

CAS: 2892-51-5 Molecular Formula: C4H2O4 Molecular Weight (g/mol): 114.056 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

Ethyl 2-amino-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate, 96%

CAS: 4815-29-6 Molecular Formula: C10H13NO2S Molecular Weight (g/mol): 211.28 MDL Number: MFCD00102063 InChI Key: BOJXCJDYZJSPMZ-UHFFFAOYSA-N Synonym: ethyl 2-amino-5,6-dihydro-4h-cyclopenta b thiophene-3-carboxylate,2-amino-5,6-dihydro-4h-cyclopenta b thiophene-3-carboxylic acid ethyl ester,ethyl 2-amino-4h,5h,6h-cyclopenta b thiophene-3-carboxylate,ethyl 2-aminocyclopenta b thiophene-3-carboxylate,ethyl 2-amino-5,6-dihydro-4h-cyclopenta b-thiophene-3-carboxylate,4h-cyclopenta b thiophene-3-carboxylic acid, 2-amino-5,6-dihydro-, ethyl ester,ethyl 2-amino-4,5,6-trihydrocyclopenta 1,2-b thiophene-3-carboxylate,enamine_004067,ethyl 2-aminocyclopentathiophene-3-carboxylate PubChem CID: 264105 IUPAC Name: ethyl 2-amino-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate SMILES: CCOC(=O)C1=C(N)SC2=C1CCC2

Isatoic anhydride, 98%

CAS: 118-48-9 Molecular Formula: C8H5NO3 Molecular Weight (g/mol): 163.13 MDL Number: MFCD00006700 InChI Key: TXJUTRJFNRYTHH-UHFFFAOYSA-N Synonym: isatoic anhydride,2h-3,1-benzoxazine-2,4 1h-dione,1h-benzo d 1,3 oxazine-2,4-dione,isatoic acid anhydride,4h-3,1-benzoxazine-2,4 1h-dione,isato acid anhydride,n-carboxyanthranilic anhydride,unii-r8tfa74y4u,3,1-benzoxazine-2,4 1h-dione,anthranilic acid, n-carboxy-, cyclic anhydride PubChem CID: 8359 SMILES: O=C1NC2=CC=CC=C2C(=O)O1

1-Methyl-1H-pyrazole-4-carboxylic acid, 97%

CAS: 5952-92-1 Molecular Formula: C₅H₆N₂O₂ Molecular Weight (g/mol): 126.11 InChI Key: UPPPWUOZCSMDTR-UHFFFAOYSA-N Synonym: 1-methyl-1h-pyrazole-4-carboxylic acid,1-methyl-4-pyrazolecarboxylic acid,1h-pyrazole-4-carboxylic acid, 1-methyl,4-carboxy-1-methyl-1h-pyrazole,1-methyl-pyrazole-4-carboxylic acid,1-methylpyrazole-4-carboxylicacid,zlchem 1243,pubchem16306,pubchem20860,acmc-209me3 PubChem CID: 643160 ChEBI: CHEBI:74741 IUPAC Name: 1-methylpyrazole-4-carboxylic acid SMILES: CN1C=C(C=N1)C(=O)O

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

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

Dorzolamide Impurity B, British Pharmacopoeia (BP) Reference Standard, MilliporeSigma™ Supelco™

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets, has been developed and issued under the Authority of the issuing Pharmacopoeia.