Methyl 5-(4-(pivaloyloxy)phenyl)pent-4-ynoate CAS 2059920-01-1
| CAS No. | 2059920-01-1 |
| Molecular Formula | C17H20O4 |
| Molecular Weight | 288.34 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.
Methyl 5-(4-(pivaloyloxy)phenyl)pent-4-ynoate (CAS 2059920-01-1) is a high-purity analytical reference standard with the molecular formula C17H20O4 and a molecular weight of 288.34 g/mol.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, Methyl 5-(4-(pivaloyloxy)phenyl)pent-4-ynoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 288.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C17H20O4 |
| Molecular Weight | 288.34 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
Related Methyl Standards
- Methyl 5-(3-(pivaloyloxy)phenyl)pent-4-ynoate (CAS 2316820-47-8)
- (1-((Pivaloyloxy)methyl)-1H-indazol-4-yl)boronic acid (CAS 1426425-08-2)
- N-(Pivaloyloxy)-2-(quinolin-8-yloxy)acetimidamide (CAS 88758-16-1)
- (Pivaloyloxy)methyl 2-propylpentanoate (CAS 77372-61-3)
- 2-((Pivaloyloxy)methyl)thiazole-4-carboxylic acid (CAS 221322-07-2)
- 4-(Pivaloyloxy)benzoic acid (CAS 86068-43-1)
- N-(pivaloyloxy)benzamide (CAS 61650-22-4)
- (Pivaloyloxy)methyl butyrate (CAS 122110-53-6)
Recommended Standards
- N-(2-(2,5-Dioxopyrrolidin-1-yl)ethyl)-N-phenylbutyramide (CAS 32411-61-3)
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- N-(2-(2-isopropyl-5-methylphenoxy)ethyl)-1H-1,2,4-triazole-3-carboxamide (CAS 650595-06-5)
- Methyl 4-(4-cyclohexylphenyl)-2,4-dioxobutanoate (CAS 82760-72-3)
- 5-Methyl-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 31366-49-1)
- (2R,7aS)-Ethyl 2-fluoro-5-oxohexahydro-1H-pyrrolizine-7a-carboxylate (CAS 2101633-12-7)
- Methyl 5-fluoro-6-formyl-2-pyridinecarboxylate (CAS 2816966-24-0)
- 6-Bromo-2-chlorodibenzo[b,d]furan (CAS 2179279-99-1)
- (3-morpholin-4-yl-1-phenylpropyl)amine,2HCl (CAS 1185304-25-9)
- 2-((4-Ethyl-5-(pyrazin-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(3-fluorophenyl)acetamide (CAS 578001-34-0)
- 3-(Isopropoxymethyl)azetidin-3-ol (CAS 1502957-15-4)
- 2-(3-Bromo-5-chloro-4-cyclopropylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2621936-21-6)
- 2-Chloro-4-(2,5-dimethylphenyl)-1-butene (CAS 951891-81-9)
- Palmitoyl hexapeptide-6 (CAS 891498-01-4)
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