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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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

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PubChem CID	17913
CAS	2892-51-5
Molecular Weight (g/mol)	114.056
ChEBI	CHEBI:52141
MDL Number	MFCD00001334
SMILES	C1(=C(C(=O)C1=O)O)O
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
IUPAC Name	3,4-dihydroxycyclobut-3-ene-1,2-dione
InChI Key	PWEBUXCTKOWPCW-UHFFFAOYSA-N
Molecular Formula	C4H2O4

Dibenzo[B,E]Thiepin-11(6H)-one, 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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Indole-7-carboxylic acid, 97%

CAS: 1670-83-3 Molecular Formula: C9H7NO2 Molecular Weight (g/mol): 161.16 MDL Number: MFCD00210442 InChI Key: IPDOBVFESNNYEE-UHFFFAOYSA-N Synonym: indole-7-carboxylic acid,7-indolecarboxylic acid,indole-7-carboxylicacid,zlchem 444,pubchem2475,7-carboxyindole,acmc-209dvl,indole-7-carboxlic acid,indole 7-carboxylic acid,1h-indole-7-carboxylicacid PubChem CID: 74281 IUPAC Name: 1H-indole-7-carboxylic acid SMILES: C1=CC2=C(C(=C1)C(=O)O)NC=C2

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PubChem CID	74281
CAS	1670-83-3
Molecular Weight (g/mol)	161.16
MDL Number	MFCD00210442
SMILES	C1=CC2=C(C(=C1)C(=O)O)NC=C2
Synonym	indole-7-carboxylic acid,7-indolecarboxylic acid,indole-7-carboxylicacid,zlchem 444,pubchem2475,7-carboxyindole,acmc-209dvl,indole-7-carboxlic acid,indole 7-carboxylic acid,1h-indole-7-carboxylicacid
IUPAC Name	1H-indole-7-carboxylic acid
InChI Key	IPDOBVFESNNYEE-UHFFFAOYSA-N
Molecular Formula	C9H7NO2

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N-Methylisatoic anhydride, tech. 90%

CAS: 10328-92-4 Molecular Formula: C9H7NO3 Molecular Weight (g/mol): 177.159 MDL Number: MFCD00006815 InChI Key: KJMRWDHBVCNLTQ-UHFFFAOYSA-N Synonym: n-methylisatoic anhydride,1-methyl-1h-benzo d 1,3 oxazine-2,4-dione,n-methyl ia,1-methyl-2h-3,1-benzoxazine-2,4 1h-dione,2h-3,1-benzoxazine-2,4 1h-dione, 1-methyl,n-methyl-n-carboxyanthranilic anhydride,methyl-n-carboxyanthranilic anhydride,1-methylbenzo d 1,3-oxazine-2,4-dione,n-methyl isotoic anhydride,1-methyl-2,4-dihydro-1h-3,1-benzoxazine-2,4-dione PubChem CID: 25160 ChEBI: CHEBI:59054 IUPAC Name: 1-methyl-3,1-benzoxazine-2,4-dione SMILES: CN1C2=CC=CC=C2C(=O)OC1=O

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PubChem CID	25160
CAS	10328-92-4
Molecular Weight (g/mol)	177.159
ChEBI	CHEBI:59054
MDL Number	MFCD00006815
SMILES	CN1C2=CC=CC=C2C(=O)OC1=O
Synonym	n-methylisatoic anhydride,1-methyl-1h-benzo d 1,3 oxazine-2,4-dione,n-methyl ia,1-methyl-2h-3,1-benzoxazine-2,4 1h-dione,2h-3,1-benzoxazine-2,4 1h-dione, 1-methyl,n-methyl-n-carboxyanthranilic anhydride,methyl-n-carboxyanthranilic anhydride,1-methylbenzo d 1,3-oxazine-2,4-dione,n-methyl isotoic anhydride,1-methyl-2,4-dihydro-1h-3,1-benzoxazine-2,4-dione
IUPAC Name	1-methyl-3,1-benzoxazine-2,4-dione
InChI Key	KJMRWDHBVCNLTQ-UHFFFAOYSA-N
Molecular Formula	C9H7NO3

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Ethyl 2-amino-4-methylthiophene-3-carboxylate, 98+%

CAS: 43088-42-2 Molecular Formula: C8H11NO2S Molecular Weight (g/mol): 185.241 MDL Number: MFCD00051669 InChI Key: ILYCZKOBLRJJSW-UHFFFAOYSA-N Synonym: 2-amino-4-methylthiophene-3-carboxylic acid ethyl ester,2-amino-4-methyl-thiophene-3-carboxylic acid ethyl ester,3-thiophenecarboxylic acid, 2-amino-4-methyl-, ethyl ester,ethyl2-amino-4-methylthiophene-3-carboxylate,ethyl 2-amino-4-methyl-3-thiophenecarboxylate,acmc-20a9ux,maybridge1_003755,2-amino-4-methyl-3-ethoxycarbonyl-thiophene,ethyl 2-amino4-methylthiophene-3-carboxylate,2-amino-3-ethoxycarbonyl-4-methylthiophene PubChem CID: 521132 IUPAC Name: ethyl 2-amino-4-methylthiophene-3-carboxylate SMILES: CCOC(=O)C1=C(SC=C1C)N

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PubChem CID	521132
CAS	43088-42-2
Molecular Weight (g/mol)	185.241
MDL Number	MFCD00051669
SMILES	CCOC(=O)C1=C(SC=C1C)N
Synonym	2-amino-4-methylthiophene-3-carboxylic acid ethyl ester,2-amino-4-methyl-thiophene-3-carboxylic acid ethyl ester,3-thiophenecarboxylic acid, 2-amino-4-methyl-, ethyl ester,ethyl2-amino-4-methylthiophene-3-carboxylate,ethyl 2-amino-4-methyl-3-thiophenecarboxylate,acmc-20a9ux,maybridge1_003755,2-amino-4-methyl-3-ethoxycarbonyl-thiophene,ethyl 2-amino4-methylthiophene-3-carboxylate,2-amino-3-ethoxycarbonyl-4-methylthiophene
IUPAC Name	ethyl 2-amino-4-methylthiophene-3-carboxylate
InChI Key	ILYCZKOBLRJJSW-UHFFFAOYSA-N
Molecular Formula	C8H11NO2S

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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

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PubChem CID	6871
CAS	87-13-8
Molecular Weight (g/mol)	216.23
MDL Number	MFCD00009148
SMILES	CCOC=C(C(=O)OCC)C(=O)OCC
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
IUPAC Name	diethyl 2-(ethoxymethylidene)propanedioate
InChI Key	LTMHNWPUDSTBKD-UHFFFAOYSA-N
Molecular Formula	C₁₀H₁₆O₅

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4-Methoxy-2(5H)-furanone, 97%

CAS: 69556-70-3 Molecular Formula: C₅H₆O₃ Molecular Weight (g/mol): 114.1 MDL Number: MFCD00071565 InChI Key: VOYDEHILKLSVNN-UHFFFAOYSA-N PubChem CID: 643477 IUPAC Name: 3-methoxy-2H-furan-5-one SMILES: COC1=CC(=O)OC1

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PubChem CID	643477
CAS	69556-70-3
Molecular Weight (g/mol)	114.1
MDL Number	MFCD00071565
SMILES	COC1=CC(=O)OC1
IUPAC Name	3-methoxy-2H-furan-5-one
InChI Key	VOYDEHILKLSVNN-UHFFFAOYSA-N
Molecular Formula	C₅H₆O₃

1,3,5-Trimethyl-1H-pyrazole-4-carboxylic acid, 97%, Thermo Scientific™

CAS: 1125-29-7 Molecular Formula: C7H10N2O2 Molecular Weight (g/mol): 154.17 MDL Number: MFCD00159648 InChI Key: NOIOGQJFLIPRBI-UHFFFAOYSA-N Synonym: 1,3,5-trimethyl-1h-pyrazole-4-carboxylic acid,trimethyl-1h-pyrazole-4-carboxylic acid,trimethylpyrazole-4-carboxylic acid,1,3,5-trimethyl-4-pyrazolecarboxylic acid,1h-pyrazole-4-carboxylic acid, 1,3,5-trimethyl,akos pao-0337,rarechem al be 0403,art-chem-bb b006363,cambridge id 5264152,1,3,5-trimethyl-1h-pyrazol-4-carboxylic acid PubChem CID: 736514 IUPAC Name: 1,3,5-trimethylpyrazole-4-carboxylic acid SMILES: CN1N=C(C)C(C(O)=O)=C1C

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PubChem CID	736514
CAS	1125-29-7
Molecular Weight (g/mol)	154.17
MDL Number	MFCD00159648
SMILES	CN1N=C(C)C(C(O)=O)=C1C
Synonym	1,3,5-trimethyl-1h-pyrazole-4-carboxylic acid,trimethyl-1h-pyrazole-4-carboxylic acid,trimethylpyrazole-4-carboxylic acid,1,3,5-trimethyl-4-pyrazolecarboxylic acid,1h-pyrazole-4-carboxylic acid, 1,3,5-trimethyl,akos pao-0337,rarechem al be 0403,art-chem-bb b006363,cambridge id 5264152,1,3,5-trimethyl-1h-pyrazol-4-carboxylic acid
IUPAC Name	1,3,5-trimethylpyrazole-4-carboxylic acid
InChI Key	NOIOGQJFLIPRBI-UHFFFAOYSA-N
Molecular Formula	C7H10N2O2

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7-Benzyloxy-6-methoxy-4(3H)-quinazolinone, 96%

CAS: 179688-01-8 Molecular Formula: C16H14N2O3 Molecular Weight (g/mol): 282.299 MDL Number: MFCD04115119 InChI Key: ZCUFFSHMOAEEIL-UHFFFAOYSA-N Synonym: 7-benzyloxy-6-methoxyquinazolin-4 3h-one,6-methoxy-7-benzyloxyquinazolin-4-one,7-benzyloxy-6-methoxy-3h-quinazolin-4-one,7-benzyloxy-6-methoxyquinazolin-4-ol,7-benzyloxy-6-methoxyquinazolin-4 1h-one,4 3h-quinazolinone, 6-methoxy-7-phenylmethoxy,7-benzyloxy-6-methoxy-4 3h-quinazolinone,4 1h-quinazolinone, 6-methoxy-7-phenylmethoxy PubChem CID: 10540849 IUPAC Name: 6-methoxy-7-phenylmethoxy-1H-quinazolin-4-one SMILES: COC1=C(C=C2C(=C1)C(=O)N=CN2)OCC3=CC=CC=C3

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PubChem CID	10540849
CAS	179688-01-8
Molecular Weight (g/mol)	282.299
MDL Number	MFCD04115119
SMILES	COC1=C(C=C2C(=C1)C(=O)N=CN2)OCC3=CC=CC=C3
Synonym	7-benzyloxy-6-methoxyquinazolin-4 3h-one,6-methoxy-7-benzyloxyquinazolin-4-one,7-benzyloxy-6-methoxy-3h-quinazolin-4-one,7-benzyloxy-6-methoxyquinazolin-4-ol,7-benzyloxy-6-methoxyquinazolin-4 1h-one,4 3h-quinazolinone, 6-methoxy-7-phenylmethoxy,7-benzyloxy-6-methoxy-4 3h-quinazolinone,4 1h-quinazolinone, 6-methoxy-7-phenylmethoxy
IUPAC Name	6-methoxy-7-phenylmethoxy-1H-quinazolin-4-one
InChI Key	ZCUFFSHMOAEEIL-UHFFFAOYSA-N
Molecular Formula	C16H14N2O3

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4-Acryloylmorpholine, 97%

CAS: 5117-12-4 Molecular Formula: C₇H₁₁NO₂ Molecular Weight (g/mol): 141.17 InChI Key: XLPJNCYCZORXHG-UHFFFAOYSA-N SMILES: C=CC(=O)N1CCOCC1

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CAS	5117-12-4
Molecular Weight (g/mol)	141.17
SMILES	C=CC(=O)N1CCOCC1
InChI Key	XLPJNCYCZORXHG-UHFFFAOYSA-N
Molecular Formula	C₇H₁₁NO₂

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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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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

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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

1-Methyl-5-phenyl-1H-pyrazole-4-carboxylic acid, 97%, Thermo Scientific™

CAS: 105994-75-0 Molecular Formula: C11H10N2O2 Molecular Weight (g/mol): 202.213 MDL Number: MFCD04038957 InChI Key: MXGOKNNGBUOAGF-UHFFFAOYSA-N Synonym: 1-methyl-5-phenyl-1h-pyrazole-4-carboxylic acid,1h-pyrazole-4-carboxylicacid, 1-methyl-5-phenyl,acmc-1c8ot,1h-pyrazole-4-carboxylic acid, 1-methyl-5-phenyl,1ff PubChem CID: 2795474 IUPAC Name: 1-methyl-5-phenylpyrazole-4-carboxylic acid SMILES: CN1C(=C(C=N1)C(=O)O)C2=CC=CC=C2

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PubChem CID	2795474
CAS	105994-75-0
Molecular Weight (g/mol)	202.213
MDL Number	MFCD04038957
SMILES	CN1C(=C(C=N1)C(=O)O)C2=CC=CC=C2
Synonym	1-methyl-5-phenyl-1h-pyrazole-4-carboxylic acid,1h-pyrazole-4-carboxylicacid, 1-methyl-5-phenyl,acmc-1c8ot,1h-pyrazole-4-carboxylic acid, 1-methyl-5-phenyl,1ff
IUPAC Name	1-methyl-5-phenylpyrazole-4-carboxylic acid
InChI Key	MXGOKNNGBUOAGF-UHFFFAOYSA-N
Molecular Formula	C11H10N2O2

Ethyl 2-amino-1-cyclohexene-1-carboxylate, 98%, Thermo Scientific Chemicals

CAS: 1128-00-3 Molecular Formula: C9H15NO2 Molecular Weight (g/mol): 169.22 MDL Number: MFCD01863243 InChI Key: JBZVWABPSHNPIK-UHFFFAOYSA-N Synonym: ethyl 2-amino-1-cyclohexene-1-carboxylate,ethyl 2-aminocyclohex-1-enecarboxylate,2-amino-cyclohex-1-enecarboxylic acid ethyl ester,ethyl 2-aminocyclohex-1-ene-1-carboxylate,2-amino-1-cyclohexenecarboxylic acid ethyl ester,1-cyclohexene-1-carboxylic acid, 2-amino-, ethyl ester,2-aminocyclohex-1-enecarboxylic acid ethyl ester,1-cyclohexene-1-carboxylicacid, 2-amino-, ethyl ester,2-amino-cyclohex-1-enecarboxylicacidethylester,ethyl cis-2-aminocyclohexenecarboxylate PubChem CID: 312929 SMILES: CCOC(=O)C1=C(N)CCCC1

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PubChem CID	312929
CAS	1128-00-3
Molecular Weight (g/mol)	169.22
MDL Number	MFCD01863243
SMILES	CCOC(=O)C1=C(N)CCCC1
Synonym	ethyl 2-amino-1-cyclohexene-1-carboxylate,ethyl 2-aminocyclohex-1-enecarboxylate,2-amino-cyclohex-1-enecarboxylic acid ethyl ester,ethyl 2-aminocyclohex-1-ene-1-carboxylate,2-amino-1-cyclohexenecarboxylic acid ethyl ester,1-cyclohexene-1-carboxylic acid, 2-amino-, ethyl ester,2-aminocyclohex-1-enecarboxylic acid ethyl ester,1-cyclohexene-1-carboxylicacid, 2-amino-, ethyl ester,2-amino-cyclohex-1-enecarboxylicacidethylester,ethyl cis-2-aminocyclohexenecarboxylate
InChI Key	JBZVWABPSHNPIK-UHFFFAOYSA-N
Molecular Formula	C9H15NO2

Vinylogous acids

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