5-Ethylpicolinic acid hydrochloride CAS 2344685-46-5
| CAS No. | 2344685-46-5 |
| Molecular Formula | C8H9NO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 187.62 g/mol gives 5-Ethylpicolinic acid hydrochloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Ethylpicolinic acid hydrochloride (CAS 2344685-46-5), molecular formula C8H9NO2HCl and molecular weight 187.62 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, chlorine substitution, 5-Ethylpicolinic acid hydrochloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 187.62 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H9NO2 HCl |
| Molecular Weight | 187.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Ethylpicolinic Standards
Recommended Standards
- (1,4,5,6,7,8-Hexahydrocyclohepta[c]pyrazol-3-yl)methanamine hydrochloride (CAS 1185302-03-7)
- 3-(3-Bromo-1H-1,2,4-triazol-5-yl)propanoic acid (CAS 933690-20-1)
- Benzyl ((1-(2-chloroacetyl)piperidin-3-yl)methyl)(cyclopropyl)carbamate (CAS 1353977-09-9)
- 2-Amino-4-(thiophen-2-yl)benzoic acid (CAS 948006-04-0)
- 3H-1,2,4-Triazole-3,5(4H)-dione (CAS 4019-43-6)
- 2-Hydroxypyrene (CAS 78751-58-3)
- 3,3,6,8-Tetramethyl-1-tetralone (CAS 5409-55-2)
- Ethyl 2-(4-ethynyl-1H-pyrazol-1-yl)acetate (CAS 2098072-46-7)
- (3-Bromophenyl)(4-ethylpiperazin-1-yl)methanone (CAS 432535-15-4)
- Semaglutide Impurity 123 (CAS 71997-93-8)
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