Vinylogous acids

Organic compounds that contain one or more hydroxyl groups indirectly attached to a carbonyl group via an intervening vinyl functional group (-C=C-; also known as carbon - carbon double bond).

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

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Ethyl 5-amino-1-methyl-1H-pyrazole-4-carboxylate, 98%

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 IUPAC Name: ethyl 5-amino-1-methylpyrazole-4-carboxylate SMILES: CCOC(=O)C1=C(N)N(C)N=C1

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PubChem CID	271299
CAS	31037-02-2
Molecular Weight (g/mol)	169.18
MDL Number	MFCD00051652
SMILES	CCOC(=O)C1=C(N)N(C)N=C1
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
IUPAC Name	ethyl 5-amino-1-methylpyrazole-4-carboxylate
InChI Key	MEUSJJFWVKBUFP-UHFFFAOYSA-N
Molecular Formula	C7H11N3O2

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Benzyl 5-amino-1H-pyrazole-4-carboxylate, 98+%

CAS: 32016-28-7 Molecular Formula: C11H11N3O2 Molecular Weight (g/mol): 217.23 MDL Number: MFCD03426023 InChI Key: QBEUXDWEKIOSIL-UHFFFAOYSA-N Synonym: benzyl 5-aminopyrazole-4-carboxylate,benzyl 3-amino-2h-pyrazole-4-carboxylate,acmc-20alpl,phenylmethyl 5-aminopyrazole-4-carboxylate,3-amino-1h-pyrazole-4-carboxylic acid benzyl ester,1h-pyrazole-4-carboxylicacid, 3-amino-, phenylmethyl ester PubChem CID: 4360500 IUPAC Name: benzyl 5-amino-1H-pyrazole-4-carboxylate SMILES: NC1=C(C=NN1)C(=O)OCC1=CC=CC=C1

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PubChem CID	4360500
CAS	32016-28-7
Molecular Weight (g/mol)	217.23
MDL Number	MFCD03426023
SMILES	NC1=C(C=NN1)C(=O)OCC1=CC=CC=C1
Synonym	benzyl 5-aminopyrazole-4-carboxylate,benzyl 3-amino-2h-pyrazole-4-carboxylate,acmc-20alpl,phenylmethyl 5-aminopyrazole-4-carboxylate,3-amino-1h-pyrazole-4-carboxylic acid benzyl ester,1h-pyrazole-4-carboxylicacid, 3-amino-, phenylmethyl ester
IUPAC Name	benzyl 5-amino-1H-pyrazole-4-carboxylate
InChI Key	QBEUXDWEKIOSIL-UHFFFAOYSA-N
Molecular Formula	C11H11N3O2

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1-Phenyl-1H-pyrazole-4-carboxylic acid, 99%

CAS: 1134-50-5 Molecular Formula: C10H8N2O2 Molecular Weight (g/mol): 188.186 MDL Number: MFCD00514518 InChI Key: ZROILLPDIUNLSE-UHFFFAOYSA-N Synonym: 1-phenyl-1h-pyrazole-4-carboxylic acid,pyrazole-4-carboxylic acid, 1-phenyl,1h-pyrazole-4-carboxylic acid, 1-phenyl,1-phenylpyrazole-4-carboxylate,1-phenyl-1h-pyrazol-4-carboxylic acid,pyrazole, 1,1-phenyl-1h-pyrazole-4-carboxylicacid,akos pao-0321,acmc-1c9e6 PubChem CID: 121026 IUPAC Name: 1-phenylpyrazole-4-carboxylic acid SMILES: C1=CC=C(C=C1)N2C=C(C=N2)C(=O)O

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PubChem CID	121026
CAS	1134-50-5
Molecular Weight (g/mol)	188.186
MDL Number	MFCD00514518
SMILES	C1=CC=C(C=C1)N2C=C(C=N2)C(=O)O
Synonym	1-phenyl-1h-pyrazole-4-carboxylic acid,pyrazole-4-carboxylic acid, 1-phenyl,1h-pyrazole-4-carboxylic acid, 1-phenyl,1-phenylpyrazole-4-carboxylate,1-phenyl-1h-pyrazol-4-carboxylic acid,pyrazole, 1,1-phenyl-1h-pyrazole-4-carboxylicacid,akos pao-0321,acmc-1c9e6
IUPAC Name	1-phenylpyrazole-4-carboxylic acid
InChI Key	ZROILLPDIUNLSE-UHFFFAOYSA-N
Molecular Formula	C10H8N2O2

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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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PubChem CID	54675757
CAS	675-10-5
Molecular Weight (g/mol)	126.11
ChEBI	CHEBI:16458
MDL Number	MFCD00006641,MFCD18820248
SMILES	CC1=CC(=O)C=C(O)O1
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
IUPAC Name	4-hydroxy-6-methylpyran-2-one
InChI Key	OOKCZXGEYPSNIM-UHFFFAOYSA-N
Molecular Formula	C6H6O3

4-Aminoantipyrine, ≥98.0%, MilliporeSigma™ Supelco™

MDL Number: MFCD00003145 Synonym: 4-Amino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one; Ampyrone

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MDL Number	MFCD00003145
Synonym	4-Amino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one; Ampyrone

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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

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PubChem CID	2777611
CAS	95201-93-7
Molecular Weight (g/mol)	237.067
MDL Number	MFCD00052081
SMILES	COC(=O)C1=C(C(=CS1)Br)O
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
IUPAC Name	methyl 4-bromo-3-hydroxythiophene-2-carboxylate
InChI Key	UFTXASQYKJFRKI-UHFFFAOYSA-N
Molecular Formula	C6H5BrO3S

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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

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PubChem CID	1715183
CAS	94-05-3
Molecular Weight (g/mol)	169.18
MDL Number	MFCD00009136
SMILES	CCO\C=C(\C#N)C(=O)OCC
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
IUPAC Name	ethyl (E)-2-cyano-3-ethoxyprop-2-enoate
InChI Key	KTMGNAIGXYODKQ-SREVYHEPSA-N
Molecular Formula	C8H11NO3

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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PubChem CID	3015937
CAS	37718-11-9
Molecular Weight (g/mol)	112.09
MDL Number	MFCD00011558
SMILES	C1=C(C=NN1)C(=O)O
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
IUPAC Name	1H-pyrazole-4-carboxylic acid
InChI Key	IMBBXSASDSZJSX-UHFFFAOYSA-N
Molecular Formula	C₄H₄N₂O₂

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.

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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

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PubChem CID	546874
CAS	488-86-8
Molecular Weight (g/mol)	142.066
MDL Number	MFCD00181389
SMILES	C1(=C(C(=O)C(=O)C1=O)O)O
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 #
IUPAC Name	4,5-dihydroxycyclopent-4-ene-1,2,3-trione
InChI Key	RBSLJAJQOVYTRQ-UHFFFAOYSA-N
Molecular Formula	C₅H₂O₅

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PubChem CID	54675757
CAS	675-10-5
Molecular Weight (g/mol)	126.11
ChEBI	CHEBI:16458
MDL Number	MFCD00006641,MFCD18820248
SMILES	CC1=CC(=O)C=C(O)O1
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
IUPAC Name	4-hydroxy-6-methylpyran-2-one
InChI Key	OOKCZXGEYPSNIM-UHFFFAOYSA-N
Molecular Formula	C6H6O3

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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

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PubChem CID	3015937
CAS	37718-11-9
Molecular Weight (g/mol)	112.088
MDL Number	MFCD00011558
SMILES	C1=C(C=NN1)C(=O)O
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
IUPAC Name	1H-pyrazole-4-carboxylic acid
InChI Key	IMBBXSASDSZJSX-UHFFFAOYSA-N
Molecular Formula	C4H4N2O2

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Ethyl 1H-pyrazole-4-carboxylate, 98%

CAS: 37622-90-5 Molecular Formula: C6H8N2O2 Molecular Weight (g/mol): 140.142 MDL Number: MFCD00010844 InChI Key: KACZQOKEFKFNDB-UHFFFAOYSA-N PubChem CID: 142179 IUPAC Name: ethyl 1H-pyrazole-4-carboxylate SMILES: CCOC(=O)C1=CNN=C1

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PubChem CID	142179
CAS	37622-90-5
Molecular Weight (g/mol)	140.142
MDL Number	MFCD00010844
SMILES	CCOC(=O)C1=CNN=C1
IUPAC Name	ethyl 1H-pyrazole-4-carboxylate
InChI Key	KACZQOKEFKFNDB-UHFFFAOYSA-N
Molecular Formula	C6H8N2O2

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Ethyl (E)-2-cyano-3-ethoxycrotonate, 98%

CAS: 932750-29-3 Molecular Formula: C9H13NO3 Molecular Weight (g/mol): 183.207 MDL Number: MFCD01743485 InChI Key: YKXFOGAYPIPTKF-BQYQJAHWSA-N Synonym: ethyl 2e-2-cyano-3-ethoxybut-2-enoate,ethyl e-2-cyano-3-ethoxycrotonate,ethyl 2-cyano-3-ethoxybut-2-enoate,2-butenoic acid, 2-cyano-3-ethoxy-, ethyl ester,ethyl e-2-cyano-3-ethoxybut-2-enoate,e-ethyl 2-cyano-3-ethoxybut-2-enoate,ethyl e-2-cyano-3-ethoxy-2-butenoate,e-2-cyano-3-ethoxycrotonic acid ethyl ester,e-2-cyano-3-ethoxy-2-butenoic acid ethyl ester PubChem CID: 6387109 IUPAC Name: ethyl (E)-2-cyano-3-ethoxybut-2-enoate SMILES: CCOC(=C(C#N)C(=O)OCC)C

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PubChem CID	6387109
CAS	932750-29-3
Molecular Weight (g/mol)	183.207
MDL Number	MFCD01743485
SMILES	CCOC(=C(C#N)C(=O)OCC)C
Synonym	ethyl 2e-2-cyano-3-ethoxybut-2-enoate,ethyl e-2-cyano-3-ethoxycrotonate,ethyl 2-cyano-3-ethoxybut-2-enoate,2-butenoic acid, 2-cyano-3-ethoxy-, ethyl ester,ethyl e-2-cyano-3-ethoxybut-2-enoate,e-ethyl 2-cyano-3-ethoxybut-2-enoate,ethyl e-2-cyano-3-ethoxy-2-butenoate,e-2-cyano-3-ethoxycrotonic acid ethyl ester,e-2-cyano-3-ethoxy-2-butenoic acid ethyl ester
IUPAC Name	ethyl (E)-2-cyano-3-ethoxybut-2-enoate
InChI Key	YKXFOGAYPIPTKF-BQYQJAHWSA-N
Molecular Formula	C9H13NO3

Vinylogous acids

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