(E)-methyl 2-(3-(naphthalen-2-yl)but-2-enamido)benzoate CAS 321674-72-0
| CAS No. | 321674-72-0 |
| Molecular Formula | C22H19NO3 |
| Molecular Weight | 345.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(E)-methyl 2-(3-(naphthalen-2-yl)but-2-enamido)benzoate (CAS 321674-72-0), molecular formula C22H19NO3 and molecular weight 345.39 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (E)-methyl 2-(3-(naphthalen-2-yl)but-2-enamido)benzoate (C22H19NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 345.39 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C22H19NO3 |
| Molecular Weight | 345.39 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Recommended Standards
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- (E)-{[4-(benzyloxy)phenyl]methylidene}amino 4-methylbenzoate (CAS 551931-09-0)
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- 2-ethyl-1-[4-(hydroxyimino)piperidin-1-yl]butan-1-one (CAS 1016867-54-1)
- Prolactin-Releasing Peptide (12-31), rat (CAS 222988-10-5)
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