Vinylogous acids

3-Amino-4-carbethoxypyrazole, 99%

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

Ethyl 2-aminothiophene-3-carboxylate, 97%

CAS: 31891-06-2 Molecular Formula: C7H9NO2S Molecular Weight (g/mol): 171.214 MDL Number: MFCD01566303 InChI Key: MKJQYFVTEPGXIE-UHFFFAOYSA-N Synonym: 2-amino-thiophene-3-carboxylic acid ethyl ester,2-aminothiophene-3-carboxylic acid ethyl ester,ethyl2-aminothiophene-3-carboxylate,2-amino-3-ethoxycarbonylthiophene,ethyl 2-amino-3-thiophenecarboxylate,2-aminothiophene-3-carboxylate,3-thiophenecarboxylic acid, 2-amino-, ethyl ester,pubchem22914,acmc-209hpg,ethyl 2-amino-3-thenoate PubChem CID: 1988156 IUPAC Name: ethyl 2-aminothiophene-3-carboxylate SMILES: CCOC(=O)C1=C(SC=C1)N

3-Amino-1H-pyrazole-4-carboxylic acid, 95%, Thermo Scientific Chemicals

CAS: 41680-34-6 Molecular Formula: C4H5N3O2 Molecular Weight (g/mol): 127.103 MDL Number: MFCD00005239 InChI Key: KMRVTZLKQPFHFS-UHFFFAOYSA-N Synonym: 3-amino-1h-pyrazole-4-carboxylic acid,3-aminopyrazole-4-carboxylic acid,3-amino-4-pyrazolecarboxylic acid,3-amino-4-carboxypyrazole,1h-pyrazole-4-carboxylic acid, 3-amino,4-pyrazolecarboxylic acid, 3-amino,pyrazole-4-carboxylic acid, 3-amino,3-aminopyrazole-4-carboxylicacid,3-amino-4-pyrazole carboxylic acid,5-aminopyrazole-4-carboxylic acid PubChem CID: 96774 IUPAC Name: 5-amino-1H-pyrazole-4-carboxylic acid SMILES: C1=NNC(=C1C(=O)O)N

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

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

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

Methyle3-hydroxybenzo[b]thiophene-2-carboxylate, 97%, Thermo Scientific™

CAS: 13134-76-4 Molecular Formula: C10H8O3S Molecular Weight (g/mol): 208.23 MDL Number: MFCD00067732 InChI Key: JVUOTPTULVZUTL-KTKRTIGZSA-N Synonym: methyl 3-hydroxybenzo b thiophene-2-carboxylate,methyl 3-hydroxybenzo b thiophene-3-carboxylate,2-hydroxy methoxy methylidene-1-benzothiophen-3-one,2z-2-hydroxy methoxy methylidene-1-benzothiophen-3-one,benzo b thiophene-2-carboxylicacid, 3-hydroxy-, methyl ester,benzo b thiophene-2-carboxylic acid, 3-hydroxy-, methyl ester,maybridge4_000295,methyl 3-hydroxy-benzothiophene2-carboxylate PubChem CID: 83165 SMILES: CO\C(O)=C1/SC2=CC=CC=C2C1=O

Methyl indole-7-carboxylate, 97%

CAS: 93247-78-0 Molecular Formula: C10H9NO2 Molecular Weight (g/mol): 175.19 MDL Number: MFCD00211064 InChI Key: FTLOEULOTNVCGF-UHFFFAOYSA-N Synonym: methyl indole-7-carboxylate,1h-indole-7-carboxylic acid methyl ester,indole-7-carboxylic acid methyl ester,methylindole-7-carboxylate,indole-7-carboxylicacidmethylester,methyl-indole-7-carboxylate,methyl 7-indolecarboxylate,7-indolecarboxylic acid methyl ester,1h-indole-7-carboxylic acid,methyl ester,1h-indole-7-carboxylic acid, methyl ester PubChem CID: 676694 IUPAC Name: methyl 1H-indole-7-carboxylate SMILES: COC(=O)C1=C2NC=CC2=CC=C1

Allopurinol Impurity D, 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.

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.

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

Methyl pyrrole-3-carboxylate, 97%

CAS: 2703-17-5 Molecular Formula: C6H7NO2 Molecular Weight (g/mol): 125.127 MDL Number: MFCD00967074 InChI Key: WLBNVSIQCFHAQB-UHFFFAOYSA-N Synonym: methyl pyrrole-3-carboxylate,1h-pyrrole-3-carboxylic acid methyl ester,1h-pyrrole-3-carboxylic acid, methyl ester,methyl 3-pyrrolecarboxylate,3-methoxycarbonyl-1h-pyrrole,pubchem22507,acmc-1cmqn,methylpyrrole-3-carboxylate,4,5-methoxy-carbonylpyrrole,methyl pyrrole 3-carboxylate PubChem CID: 12361759 IUPAC Name: methyl 1H-pyrrole-3-carboxylate SMILES: COC(=O)C1=CNC=C1

2-Amino-6-methyl-4(3H)-quinazolone, 96%, Thermo Scientific Chemicals

CAS: 50440-82-9 Molecular Formula: C9H9N3O Molecular Weight (g/mol): 175.191 MDL Number: MFCD00236015 InChI Key: DJYDUJAKTAWKTN-UHFFFAOYSA-N Synonym: 2-amino-6-methylquinazolin-4 3h-one,2-amino-6-methyl-4 3h-quinazolone,2-amino-6-methyl-3h-quinazolin-4-one,2-amino-6-methyl-4 3h-quinazolinone,acmc-1aogs,chembl7222,2-amino-4-hydroxy-6-methylquinazoline,2-amino-6-methylquinazolin-4 1h-one,6-methyl-2-aminoquinazolin-4 3h-one,2-amino-6-methyl-3-hydroquinazolin-4-one PubChem CID: 4151444 IUPAC Name: 2-amino-6-methyl-1H-quinazolin-4-one SMILES: CC1=CC2=C(C=C1)NC(=NC2=O)N

5-Hydroxyquinoline, 97%

CAS: 578-67-6 Molecular Formula: C₉H₇NO Molecular Weight (g/mol): 145.16 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