Vinylogous acids
3,4-Dihydroxy-3-cyclobutene-1,2-dione 98.0+%, TCI America™
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
2,5-Dimethyl-4-hydroxy-3(2H)-furanone 98.0+%, TCI America™
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
1-Methylpyrazole-4-carboxylic Acid 98.0+%, TCI America™
CAS: 5952-92-1 Molecular Formula: C5H6N2O2 Molecular Weight (g/mol): 126.115 MDL Number: MFCD00159641 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
Ethyl 2-Amino-4-methylthiophene-3-carboxylate 98.0+%, TCI America™
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
Ethyl 2-(Ethoxymethylene)-2-cyanoacetate 98.0+%, TCI America™
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 (2Z)-2-cyano-3-ethoxyprop-2-enoate SMILES: CCO\C=C(\C#N)C(=O)OCC
7-Fluoro-4-hydroxyquinazoline 98.0+%, TCI America™
CAS: 16499-57-3 Molecular Formula: C8H5FN2O Molecular Weight (g/mol): 164.139 MDL Number: MFCD05664874 InChI Key: KCORZHJVTZIZFD-UHFFFAOYSA-N Synonym: 7-Fluoro-4-quinazolinone, 7-Fluoro-4-quinazolinol PubChem CID: 7018323 IUPAC Name: 7-fluoro-1H-quinazolin-4-one SMILES: C1=CC2=C(C=C1F)NC=NC2=O
6-Bromo-4-hydroxyquinazoline 98.0+%, TCI America™
CAS: 32084-59-6 Molecular Formula: C8H5BrN2O Molecular Weight (g/mol): 225.045 MDL Number: MFCD00115131 InChI Key: OVEISJPVPHWEHR-UHFFFAOYSA-N Synonym: 6-Bromo-4-quinazolinone, 6-Bromo-4-quinazolinol PubChem CID: 699754 IUPAC Name: 6-bromo-1H-quinazolin-4-one SMILES: C1=CC2=C(C=C1Br)C(=O)N=CN2
Methyl Indole-3-carboxylate 98.0+%, TCI America™
CAS: 942-24-5 Molecular Formula: C10H9NO2 Molecular Weight (g/mol): 175.187 MDL Number: MFCD00189407 InChI Key: QXAUTQFAWKKNLM-UHFFFAOYSA-N Synonym: methyl indole-3-carboxylate,indole-3-carboxylic acid methyl ester,methyl 3-indolecarboxylate,1h-indole-3-carboxylic acid methyl ester,1h-indole-3-carboxylic acid, methyl ester,3-carbomethoxyindole,3-methoxycarbonylindole,methylindole-3-carboxylate,indole-3-carboxylic acid, methyl ester,methyl-3-indolcarboxylate PubChem CID: 589098 ChEBI: CHEBI:65019 IUPAC Name: methyl 1H-indole-3-carboxylate SMILES: COC(=O)C1=CNC2=CC=CC=C21
![3,6-Diphenyl-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione 98.0+%, TCI America™](https://assets.fishersci.com/TFS-Assets/CCG/Chemical-Structures/chemical-structure-cas-54660-00-3.jpg-250.jpg)
3,6-Diphenyl-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione 98.0+%, TCI America™
CAS: 54660-00-3 Molecular Formula: C18H12N2O2 Molecular Weight (g/mol): 288.31 MDL Number: MFCD11870113 InChI Key: UWHBZLMSPZBZHY-UHFFFAOYSA-N Synonym: Pigment Red 255 PubChem CID: 5378296 IUPAC Name: 3,6-diphenyl-1H,2H,4H,5H-pyrrolo[3,4-c]pyrrole-1,4-dione SMILES: O=C1NC(=C2C(=O)NC(=C12)C1=CC=CC=C1)C1=CC=CC=C1
7-Deazahypoxanthine 98.0+%, TCI America™
CAS: 3680-71-5 Molecular Formula: C6H5N3O Molecular Weight (g/mol): 135.13 MDL Number: MFCD08445809 InChI Key: FBMZEITWVNHWJW-UHFFFAOYSA-N Synonym: 7h-pyrrolo 2,3-d pyrimidin-4-ol,pyrrolo 2,3-d pyrimidin-4-ol,7-deazahypoxanthine,3h-pyrrolo 2,3-d pyrimidin-4 7h-one,4-hydroxypyrrolo 2,3-d pyrimidine,4-hydroxypyrrolopyrimidine,1h-pyrrolo 2,3-d pyrimidin-4 7h-one,3,7-dihydro-4h-pyrrolo 2,3-d pyrimidin-4-one,pyrrolo 2,3-d pyrimidin-4-one PubChem CID: 96194 IUPAC Name: 1H,4H,7H-pyrrolo[2,3-d]pyrimidin-4-one SMILES: O=C1N=CNC2=C1C=CN2
3-Ethoxyacryloyl Chloride 88.0+%, TCI America™
CAS: 6191-99-7 Molecular Formula: C5H7ClO2 Molecular Weight (g/mol): 134.559 MDL Number: MFCD09029675 InChI Key: SFMFACMIOWQIPR-ONEGZZNKSA-N PubChem CID: 5325500 IUPAC Name: (E)-3-ethoxyprop-2-enoyl chloride SMILES: CCOC=CC(=O)Cl
Ethyl Pyrazole-4-carboxylate 98.0+%, TCI America™
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
Ethyl 3-(Trifluoromethyl)pyrazole-4-carboxylate 98.0+%, TCI America™
CAS: 155377-19-8 Molecular Formula: C7H7F3N2O2 Molecular Weight (g/mol): 208.14 MDL Number: MFCD00052083 InChI Key: VYXIHSAEOXPAEY-UHFFFAOYSA-N Synonym: ethyl 3-trifluoromethyl pyrazole-4-carboxylate,ethyl 3-trifluoromethyl-1h-pyrazole-4-carboxylate,ethyl 5-trifluoromethyl-1h-pyrazole-4-carboxylate,3-trifluoromethyl-1h-pyrazole-4-carboxylic acid ethyl ester,3-trifluoromethyl pyrazole-4-carboxylic acid ethyl ester,ethyl 3-trifluoromethyl-2h-pyrazole-4-carboxylate,5-trifluoromethyl-1h-pyrazole-4-carboxylic acid ethyl ester,1h-pyrazole-4-carboxylic acid, 3-trifluoromethyl-, ethyl ester PubChem CID: 596095 IUPAC Name: ethyl 5-(trifluoromethyl)-1H-pyrazole-4-carboxylate SMILES: CCOC(=O)C1=C(NN=C1)C(F)(F)F
4-Chloroisatoic Anhydride 98.0+%, TCI America™
CAS: 40928-13-0 Molecular Formula: C8H4ClNO3 Molecular Weight (g/mol): 197.57 MDL Number: MFCD00090431 InChI Key: QRUPDIJQZCABTC-UHFFFAOYSA-N Synonym: 7-Chloro-1,2-dihydro-4H-3,1-benzoxazine-2,4-dione PubChem CID: 329105 IUPAC Name: 7-chloro-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione SMILES: ClC1=CC=C2C(=O)OC(=O)NC2=C1
Khellin 95.0+%, TCI America™
CAS: 82-02-0 Molecular Formula: C14H12O5 Molecular Weight (g/mol): 260.245 MDL Number: MFCD00005007 InChI Key: HSMPDPBYAYSOBC-UHFFFAOYSA-N Synonym: khellin,visammin,amicardine,methafrone,coronin,amikellin,ammipuran,ammivisnagen,benecardin,corafurone PubChem CID: 3828 ChEBI: CHEBI:6133 IUPAC Name: 4,9-dimethoxy-7-methylfuro[3,2-g]chromen-5-one SMILES: CC1=CC(=O)C2=C(C3=C(C(=C2O1)OC)OC=C3)OC