5-(4-Formylphenyl)picolinic acid CAS 566198-33-2
| CAS No. | 566198-33-2 |
| Molecular Formula | C14H11NO3 |
| Molecular Weight | 241.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
5-(4-Formylphenyl)picolinic acid (CAS 566198-33-2), molecular formula C14H11NO3 and molecular weight 241.24 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 5-(4-Formylphenyl)picolinic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 241.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 5-(4-Formylphenyl)picolinic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C14H11NO3 |
| Molecular Weight | 241.24 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 1 |
Related Formylphenyl Standards
- 2-(4-Formylphenyl)isonicotinic Acid (CAS 566198-32-1)
- 5-(3-Formylphenyl)nicotinic acid (CAS 566198-34-3)
- 6-(4-Formylphenyl)-2-pyridinecarboxylic Acid (CAS 566198-31-0)
- Methyl 3-(4-formylphenyl)picolinate (CAS 920510-95-8)
- Methyl 5-(2-Formylphenyl)nicotinate (CAS 893740-15-3)
- Methyl 5-(3-formylphenyl)nicotinate (CAS 893734-98-0)
- Methyl 5-(4-formylphenyl)nicotinate (CAS 893734-95-7)
- 4-Formylphenyl 4-methylbenzoate (CAS 115883-85-7)
Recommended Standards
- 5-Acetyl-4-methylpyrano[3,2-b]indol-2(5H)-one (CAS 2347639-49-8)
- 5-(2-Amino-4,6-dihydroxypyrimidin-5-yl)-2-methylpentanoic acid (CAS 79333-29-2)
- 5-Methoxy-3h-benzo[e]indole-2-carboxylic acid (CAS 887360-44-3)
- 5-(1H-indol-1-ylmethyl)-2-furoic acid (CAS 876881-48-0)
- 5,6-Dichloro-n-(pyridin-2-yl)pyridine-3-carboxamide (CAS 1016746-43-2)
- Diazepam Impurity 1 (CAS 36020-94-7)
- 2-(Bromomethyl)pyrimidine-4-carbaldehyde (CAS 1194375-31-9)
- 4-(2-Tetrahydro-2H-pyranoxy)phenylmagnesium bromide, 0.5M THF (CAS 36637-44-2)
- 3-(Aminomethyl)-3-methylazetidin-2-one (CAS 1638771-26-2)
- 3-((Tert-butoxycarbonyl)amino)-3-(2-(trifluoromethyl)phenyl)propanoic acid (CAS 954225-38-8)
- 1-(5-(4-Fluorophenyl)furan-2-yl)-N-(4-methoxyphenyl)methanimine (CAS 327074-24-8)
- 7,8-Dibromo-1,2,3,4,6-pentachlorodibenzo[b,d]furan (CAS 107207-45-4)
- 3-Methoxy-1-oxa-8-azaspiro[4.5]Decane hydrochloride (CAS 1390654-92-8)
- GnRH Associated Peptide (GAP) (1-13), human (CAS 100111-07-7)
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