4-(tert-Butyl)-5-cyclopropoxypicolinic acid CAS 1243321-47-2
| CAS No. | 1243321-47-2 |
| Molecular Formula | C13H17NO3 |
| Molecular Weight | 235.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-(tert-Butyl)-5-cyclopropoxypicolinic acid (C13H17NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 235.28 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
4-(tert-Butyl)-5-cyclopropoxypicolinic acid (CAS 1243321-47-2), molecular formula C13H17NO3 and molecular weight 235.28 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C13H17NO3 |
| Molecular Weight | 235.28 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 4-Cyclopropoxy-N,N-dimethyl-5-(methylamino)nicotinamide (CAS 1243319-86-9)
- 4-(tert-Butyl)-2-cyclopropoxy-1-nitrobenzene (CAS 1243321-61-0)
- 3-Cyclopropoxy-N,N-dimethyl-2-(methylamino)isonicotinamide (CAS 1243317-02-3)
- 6-(tert-Butoxy)-5-cyclopropoxynicotinaldehyde (CAS 1243323-21-8)
- 2-Chloro-1-[2,5-dimethyl-1-[(tetrahydro-2-furanyl)methyl]-1H-pyrrol-3-yl]ethanone (CAS 725710-55-4)
- AM 103 (CAS 1147872-22-7)
- 3-((3-Phenylprop-2-yn-1-yl)oxy)azetidine (CAS 1343309-25-0)
- 2-(Chloromethyl)-4-(difluoromethyl)-3-methoxy-5-nitropyridine (CAS 1805434-33-6)
- 6-((1-Methylcyclobutyl)methoxy)nicotinic acid (CAS 1427010-96-5)
- Loxoprofen impurity 124 (CAS CATO-C4X-1488124)
- Methyl n-(3-aminophenyl)carbamate (CAS 6464-98-8)
- 2-Fluoro-5-methyl-4-nitropyridine (CAS 1803825-71-9)
- (3-Chloro-2-fluorobenzyl)(3-fluorophenyl)sulfane (CAS 1443312-65-9)
- Acetyl-Exenatide trifluoroacetate salt (CAS 305815-28-5)
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