Ethyl 3-((2-methoxyphenyl)amino)but-2-enoate CAS 33267-45-7
| CAS No. | 33267-45-7 |
| Molecular Formula | C13H17NO3 |
| Molecular Weight | 235.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Ethyl 3-((2-methoxyphenyl)amino)but-2-enoate (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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Ethyl 3-((2-methoxyphenyl)amino)but-2-enoate (CAS 33267-45-7), 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.) | 1966 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 4-(2,6-Dichlorophenyl)-9-hydroxy-6-(3-(methylamino)propyl)pyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione (CAS 622856-21-7)
- 2,6-Bis[(4S)-4,5-dihydro-4-[2-(methylthio)ethyl]-2-oxazolyl]pyridine (CAS 497172-32-4)
- 2-[2-(dimethylamino)ethoxy]aniline (CAS 1202-00-2)
- (4R,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,4,5-triyl triacetate (CAS 75828-75-0)
- (E)-1-Cyclopropylethan-1-one oxime (CAS 80606-74-2)
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