Acetic acid, 2-[[2-(1-methylethyl)phenyl]amino]-2-oxo-, ethyl ester CAS 42022-52-6
| CAS No. | 42022-52-6 |
| Molecular Formula | C13H17NO3 |
| Molecular Weight | 235.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Acetic acid, 2-[[2-(1-methylethyl)phenyl]amino]-2-oxo-, ethyl ester (C13H17NO3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Acetic acid, 2-[[2-(1-methylethyl)phenyl]amino]-2-oxo-, ethyl ester (CAS 42022-52-6), a certified reference material (molecular formula C13H17NO3, MW 235.28 g/mol) for analytical method development and quality control.
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.) | 1969 |
| Nitrogen Atoms | 1 |
Related Acetic Standards
- Acetic acid, 2-[[2-(1,1-dimethylethyl)phenyl]amino]-2-oxo-, methyl ester (CAS 483334-60-7)
- 3042-81-7 Acetic acid, methyl ester Benzeneacetic acid, methyl ester Methyl .alpha.-bromo-.alpha.-phenylacetate Methyl .alpha.-bromobenzeneacetate Methyl .alpha.-bromophenylacetate Methyl bromophenylacetate NSC-243708 NSC243708 (CAS 3042-81-7)
- Acetic acid, 2-(3,4-dichlorophenoxy)-, methyl ester (CAS 1928-55-8)
- 838-57-3 Acetic acid, (p-nitrobenzoyl)-, ethyl ester Benzenepropanoic acid, 4-nitro-beta-oxo-, ethyl ester Ethyl 4-nitrobenzoylacetate 4-10-00-02759 (Beilstein Handbook Reference) BRN 1124763 EINECS 212-656-7 Ethyl (p-nitrobenzoyl)acetate Ethyl (4-nitrobenzoyl)acetate Ethyl 4-nitro-beta-oxobenzenepropanoate (p-Nitrobenzoyl)acetic acid ethyl ester (4-Nitrobenzoyl)acetic acid ethyl ester NSC 62134 (CAS 838-57-3)
- Acetic acid, benzyl(1-cyclopropylethyl)amine (CAS 1252180-29-2)
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Recommended Standards
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- 8-Methoxy-2-phenylquinoline (CAS 393109-89-2)
- (R,S)-N-Nitroso Anabasine-d4 (CAS 1020719-68-9)
- 5-Chloro-2-(2-fluorophenoxy)aniline (CAS 946727-72-6)
- 1-Methyl-N-(pyridin-3-ylmethyl)-1H-imidazol-2-amine (CAS 939758-60-8)
- 5-Methoxy-1H-indol-2-amine Hydrochloride (CAS 1803567-34-1)
- n-(2-(1h-Indol-3-yl)ethyl)-n-(3-(2-chlorophenyl)-5-methylisoxazol-4-yl)formamide (CAS 920623-24-1)
- Butyl (4-(1,3-dimethylimidazolidin-2-yl)phenyl)carbamate (CAS 89221-78-3)
- Vortioxetine Impurity 168 (CAS 2384939-59-5)
- N-[1-((S)-2-Amino-propionyl)-pyrrolidin-3-yl]-acetamide (CAS 1354026-61-1)
- 5-amino-3-(diethylamino)-1H-pyrazole-4-carbonitrile (CAS 1159941-93-1)
- Des-[Ser]8-Liraglutide (CAS CATO-C4X-199233)
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