5-(Thiophen-2-yl)picolinic acid CAS 99568-12-4
| CAS No. | 99568-12-4 |
| Molecular Formula | C18H12N2O4 |
| Molecular Weight | 320.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 5-(Thiophen-2-yl)picolinic acid (CAS 99568-12-4), a certified reference material (molecular formula C18H12N2O4, MW 320.30 g/mol) for analytical method development and quality control.
Based on its molecular formula C18H12N2O4, 5-(Thiophen-2-yl)picolinic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 320.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 5-(Thiophen-2-yl)picolinic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H12N2O4 |
| Molecular Weight | 320.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
Related Thiophen Standards
- 2-{[4-(thiophen-2-yl)-6-(trifluoromethyl)pyrimidin-2-yl]sulfanyl}acetic acid (CAS 505054-60-4)
- N1-((1-(Thiophen-2-yl)cyclopropyl)methyl)-N2-(thiophen-2-ylmethyl)oxalamide (CAS 1207043-80-8)
- 5,5'-Di(thiophen-2-yl)-2,2'-bipyridine (CAS 182631-76-1)
- N-((1-(Thiophen-2-ylmethyl)piperidin-4-yl)methyl)thiophene-3-carboxamide (CAS 1208799-04-5)
- 3-(Di(thiophen-2-yl)methylene)-5-methoxy-1,1-dimethylpiperidin-1-ium (CAS 97094-64-9)
- 1-(1-(Thiophen-2-yl)ethylidene)-2-(2,4,6-trichlorophenyl)hydrazine (CAS 194923-67-6)
- 1-(4-(4-(Thiophen-3-yl)thiazol-2-yl)piperazin-1-yl)but-2-en-1-one (CAS 1448140-56-4)
- 2-({3-oxo-2-[(thiophen-2-yl)methyl]-2,3-dihydro-1H-isoindol-1-yl}sulfanyl)acetic acid (CAS 189271-29-2)
Recommended Standards
- 5'-(N-Cyclopropyl)carboxamidoadenosine (CAS 50908-62-8)
- 5,6-Diphenylpyridazine-3,4-dicarboxylic acid (CAS 253144-69-3)
- 4-Cyanophenyl 2-(1,3-dioxo-2,3-dihydro-1h-isoindol-2-yl)propanoate (CAS 727980-91-8)
- 5-Amino-1-(2-((2,4-dimethoxyphenyl)amino)-2-oxoethyl)-1H-1,2,3-triazole-4-carboxamide (CAS 901046-40-0)
- 2-Amino-6-bromobenzoxazole (CAS 52112-66-0)
- 3-Methyl-7-(4-nitrophenyl)isoxazolo[4,5-d]pyridazin-4(5H)-one (CAS 923569-69-1)
- 1-(1,3-Dimethyl-1H-pyrazol-4-yl)-2,2,2-trifluoroethanone (CAS 1174875-19-4)
- Pregabalin Impurity 116 (CAS 145328-03-6)
- 3-Methoxy-4-(oxetan-3-yloxy)aniline (CAS 1349717-19-6)
- ethyl 5-formyl-1-phenyl-1H-pyrazole-4-carboxylate (CAS 40995-43-5)
- 3-Amino-2,4,6,7-tetrahydrothiopyrano[4,3-c]pyrazole 5,5-dioxide (CAS 1306604-52-3)
- 7-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phthalazin-1(2H)-one (CAS 1009303-60-9)
- Iron(III) phosphate dihydrate (CAS 13463-10-0)
- Semaglutide Impurity 3 (CAS CATO-C4X-22263)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com