Pyrazolopyridines

Pyrazolo[1,5-a]pyridine-3-carboxylic acid, 97%, Thermo Scientific™

CAS: 16205-46-2 Molecular Formula: C8H6N2O2 Molecular Weight (g/mol): 162.148 MDL Number: MFCD00229214 InChI Key: HRSDPDBQVZHCRC-UHFFFAOYSA-N Synonym: pyrazolo 1,5-a pyridine-3-carboxylic acid,zlchem 84,3-pyrazolo 1,5-a pyridinecarboxylic acid,pyrazolo 1,5-a pyridine-3-carboxylicacid,pyrazolo pyridine-3-carboxylic acid,h-pyrazolo 1,5-a pyridine-3-carboxylic acid,8-hydropyrazolo 1,5-a pyridine-3-carboxylic acid PubChem CID: 2795462 IUPAC Name: pyrazolo[1,5-a]pyridine-3-carboxylic acid SMILES: C1=CC2=C(C=NN2C=C1)C(=O)O

Pyrazolo[1,5-a]pyridine-2-carboxylic acid, Tech., Thermo Scientific™

CAS: 63237-88-7 Molecular Formula: C8H6N2O2 Molecular Weight (g/mol): 162.15 MDL Number: MFCD06739057 InChI Key: AYGNAOBAPQNTIL-UHFFFAOYSA-N Synonym: pyrazolo 1,5-a pyridine-2-carboxylic acid,2-carboxypyrazolo 1,5-a pyridine,h-pyrazolo 1,5-a pyridine-2-carboxylic acid,pubchem15887,2-pyrazolo 1,5-a pyridinecarboxylic acid,8-hydropyrazolo 1,5-a pyridine-2-carboxylic acid,pyrazolo 1 pound not5-a pyridine-2-carboxylicacid PubChem CID: 7127820 IUPAC Name: pyrazolo[1,5-a]pyridine-2-carboxylic acid SMILES: OC(=O)C1=NN2C=CC=CC2=C1

1-Methyl-1H-pyrazolo[3,4-b]pyridine-3-carboxylic acid, 97%, Thermo Scientific™

CAS: 116855-09-5 Molecular Formula: C8H7N3O2 Molecular Weight (g/mol): 177.163 MDL Number: MFCD11109332 InChI Key: WEZYUZRHWLFJDN-UHFFFAOYSA-N Synonym: 1-methyl-1h-pyrazolo 3,4-b pyridine-3-carboxylic acid,1-methylpyrazolo 3,4-b pyridine-3-carboxylic acid,1h-pyrazolo 3,4-b pyridine-3-carboxylicacid,1-methyl,1h-pyrazolo 3,4-b pyridine-3-carboxylicacid, 1-methyl,1h-pyrazolo 3,4-b pyridine-3-carboxylic acid, 1-methyl,acmc-1bnof,1-methyl-3-pyrazolo 3,4-b pyridinecarboxylic acid,1-methylpyrazolo 5,4-b pyridine-3-carboxylic acid PubChem CID: 14140175 IUPAC Name: 1-methylpyrazolo[3,4-b]pyridine-3-carboxylic acid SMILES: CN1C2=C(C=CC=N2)C(=N1)C(=O)O

Sigma Aldrich 3,5-Dibromobenzoic acid

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Sigma Aldrich 6-Hydroxy-5-methoxynicotinic acid

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Sigma Aldrich 2-(4-Bromophenoxy)-5-chlorobenzoic acid

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Sigma Aldrich 2-AMINO-4-(TRIFLUOROMETHYL)-5-PYRIMIDINE CARBOXYLIC ACID

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Sigma Aldrich 5-Methyl-1-phenyl-1H-pyrazole-3-carboxylic acid

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Ethyl pyrazolo[1,5-a]pyridine-3-carboxylate, 95%, Thermo Scientific™

CAS: 16205-44-0 Molecular Formula: C10H10N2O2 Molecular Weight (g/mol): 190.20 MDL Number: MFCD06411542 InChI Key: IDHMFSBXNNIWCT-UHFFFAOYSA-N Synonym: ethyl pyrazolo 1,5-a pyridine-3-carboxylate,pyrazolo 1,5-a pyridine-3-carboxylic acid ethyl ester,ethylpyrazolo 1,5-a pyridine-3-carboxylate,ethyl h-pyrazolo 1,5-a pyridine-3-carboxylate,zlchem 54,acmc-1bsao,ethyl 3-azaindoline-3-carboxylate,ethyl 8-hydropyrazolo 1,5-a pyridine-3-carboxylate,3-pyrazolo 1,5-a pyridinecarboxylic acid ethyl ester,1qp PubChem CID: 2795464 IUPAC Name: ethyl pyrazolo[1,5-a]pyridine-3-carboxylate SMILES: CCOC(=O)C1=C2C=CC=CN2N=C1

tert-Butyl 6-fluoro-1H-pyrazolo[3,4-b]pyridine-3-carboxylate, ≥97%, Thermo Scientific™

CAS: 155601-71-1 Molecular Formula: C11H12FN3O2 Molecular Weight (g/mol): 237.234 MDL Number: MFCD06797502 InChI Key: INGAFDNQIOIZHC-UHFFFAOYSA-N Synonym: tert-butyl 6-fluoro-1h-pyrazolo 3,4-b pyridine-3-carboxylate,6-fluoro-1h-pyrazolo 3,4-b pyridine-3-carboxylic acid tert-butyl ester,tert-butyl6-fluoro-1h-pyrazolo 3,4-b pyridine-3-carboxylate,3-tert-butoxycarbonyl-6-fluoro-1h-pyrazolo 3,4-b pyridine,tert-butyl 6-fluoro-2h-pyrazolo 3,4-b pyridine-3-carboxylate,t-butyl 6-fluoro-1h-pyrazolo 3,4-b pyridine-3-carboxylate,tert-butyl 6-fluoropyrazolo 5,4-b pyridine-3-carboxylate,tert-butyl 6-fluoro-1h-pyrazolo-3,4-b pyridine-3-carboxylate,tert-butyl 6-fluoro-1h-pyrazolo 3.4-b pyridine-3-carboxylate PubChem CID: 7127829 IUPAC Name: tert-butyl 6-fluoro-2H-pyrazolo[3,4-b]pyridine-3-carboxylate SMILES: CC(C)(C)OC(=O)C1=C2C=CC(=NC2=NN1)F

eMolecules​ Pyrazolo[1,5-a]pyridine-5-carboxylic acid | 104468-87-3 | MFCD12828626 | 1g

Ambeed | Pyrazolo[1,5-a]pyridine-5-carboxylic acid | 1g | 539142500 | A226169 | | 104468-87-3 | MFCD12828626 | 162.148 | C8H6N2O2

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eMolecules​ Pyrazolo[1,5-a]pyridine-7-carboxylic acid | 474432-62-7 | MFCD06739030 | 1g

Combi-Blocks | Pyrazolo[1,5-a]pyridine-7-carboxylic acid | 1g | 537623724 | QN-3422 | 95.000 | 474432-62-7 | MFCD06739030 | 162.148 | C8H6N2O2

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eMolecules​ 1H-pyrazolo[3,4-b]pyrazine-3-carboxylic acid | 1286754-47-9 | MFCD27987648 | 1g

Pharmablock | 1H-pyrazolo[3,4-b]pyrazine-3-carboxylic acid | 1g | 551114962 | PBLJ1862 | | 1286754-47-9 | MFCD27987648 | 164.124 | C6H4N4O2

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Chemscene ChemScene | Pyrazolo[1,5-a]pyridine-3-carboxylic acid | 1G | CS-W006799 | 0.98 | 16205-46-2| MFCD00229214 | 162.15

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ChemScene | Pyrazolo[1,5-a]pyridine-3-carboxylic acid | 1G | CS-W006799 | 0.98 | 16205-46-2| MFCD00229214 | 162.15

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Medchemexpress LLC 2-[3-carboxy-4-(2-methylpropoxy)phenyl]-4-methyl-5-thiazolecarboxylic acid | 1239233-87-4 | MFCD29050077 | 98.8% | C16H17NO5S | 10MG

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Febuxostat dicarboxylic acid impurity is an analytical reference material used for impurity profiling and method development related to febuxostat. It is provided for research and analytical applications, with CAS 1239233-87-4, molecular formula C16H17NO5S, molecular weight 335.37 g·mol⁻¹, and a typical assay of 98.8%.

• For use as an analytical impurity standard in method development and validation.
• High purity suitable for HPLC and mass spectrometry analysis.
• Provided in milligram-scale packaging for reference and QC work.
• Molecular formula C16H17NO5S and CAS 1239233-87-4 for unambiguous identification.
• Certificate of analysis and batch data available to support traceability.
• Intended for research use only; not for human or clinical use.

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