3-(4-Pyridyl)propiolic Acid CAS 66869-74-7
| CAS No. | 66869-74-7 |
| Molecular Formula | C8H5NO2 |
| Molecular Weight | 147.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(4-Pyridyl)propiolic Acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-(4-Pyridyl)propiolic Acid (CAS 66869-74-7), molecular formula C8H5NO2 and molecular weight 147.13 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-(4-Pyridyl)propiolic Acid (C8H5NO2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-(4-Pyridyl)propiolic 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 | C8H5NO2 |
| Molecular Weight | 147.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 1 |
Related Pyridyl Standards
- 3-(3-Pyridyl)-1,2,5-oxadiazole (CAS 131988-03-9)
- 2-(3-Pyridyl)-1,3,4-oxadiazole, 97% (CAS 65943-95-5)
- 3-(2-Pyridyl)propiolic Acid (CAS 858678-71-4)
- 3-(3-Pyridyl)propiolic Acid (CAS 59608-01-4)
- 5-(3-Pyridyl)-1H-tetrazole (CAS 3250-74-6)
- 4-(3-Pyridyl)-3-butyn-1-ol (CAS 138487-20-4)
- 4-(4-Pyridyl)-3-butyn-1-ol (CAS 192643-83-7)
- 4-(2-Pyridyl)-3-butyn-1-ol (CAS 395652-44-5)
Recommended Standards
- 3-(Difluoromethyl)-5-methyl-1H-pyrazol-4-amine (CAS 2450343-56-1)
- 3-Ethynylpicolinic acid (CAS 219623-05-9)
- 2-Pyridinecarboxamide,5-cyano-(9CI) (CAS 65346-04-5)
- 3-Fluoro-2-nitrothiophene (CAS 32431-81-5)
- 4-Cyano-3-fluorobenzenesulfonamide (CAS 1261823-43-1)
- Ethyl n-[(4-sulfamoylphenyl)methyl]carbamate (CAS 39148-61-3)
- 4-(Cyclopropylmethoxy)-3-fluorobenzoic acid (CAS 1021144-38-6)
- cis-3-(Pyrrolidin-1-yl)cyclobutan-1-ol Hydrochloride (CAS 1807941-15-6)
- 1-cyclopentylimidazolidin-2-one (CAS 1279815-55-2)
- (1-(4-Chlorobenzyl)-1h-imidazol-5-yl)methanamine hydrochloride (CAS 1779124-59-2)
- 4-Phenyl-3,4-dihydro-benzo[e][1,3]oxazin-2-one (CAS 1129278-73-4)
- 5-Ethyl-2-hydroxypyridine (CAS 53428-03-8)
- 3-[(Oxan-4-yl)methyl]azetidine (CAS 1251373-21-3)
- Semaglutide Impurity 10 (CAS CATO-C4X-222610)
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