N-(4-ethoxyphenyl)-4-methoxybenzamide CAS 303795-57-5
| CAS No. | 303795-57-5 |
| Molecular Formula | C16H17NO3 |
| Molecular Weight | 271.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including N-(4-ethoxyphenyl)-4-methoxybenzamide.
CATO supplies N-(4-ethoxyphenyl)-4-methoxybenzamide (CAS 303795-57-5), a certified reference material (molecular formula C16H17NO3, MW 271.31 g/mol) for analytical method development and quality control.
Structurally, N-(4-ethoxyphenyl)-4-methoxybenzamide (C16H17NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 271.31 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.
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 | C16H17NO3 |
| Molecular Weight | 271.31 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related N Standards
- Methyl 6-(4-ethoxyphenyl)-2-methylnicotinate (CAS 1447960-36-2)
- N-(2-ethoxyphenyl)-2-methoxybenzamide (CAS 306279-65-2)
- N-(2-Ethoxyphenyl)-4-methoxybenzamide (CAS 303795-58-6)
- N-(4-Ethoxyphenyl)-2-methoxybenzamide (CAS 306279-64-1)
- 6-(4-Ethoxyphenyl)-3-formylpicolinic acid (CAS 1447953-38-9)
- 2-(4-(4-Ethoxyphenyl)-2,3-dioxo-3,4-dihydropyrazin-1(2H)-yl)acetonitrile (CAS 898419-44-8)
- 5-(4-Ethoxyphenyl)-3-methylisoxazolo[5,4-d]pyrimidin-4(5H)-one (CAS 94640-97-8)
- 4-[(4-Ethoxyphenyl)methoxy]benzoic acid (CAS 62290-44-2)
Recommended Standards
- N-(4-Fluorophenyl)-5-phenyl-1,3,4-thiadiazol-2-amine (CAS 827580-36-9)
- N-(4-Butoxyphenyl)pyrazine-2-carboxamide (CAS 606132-15-4)
- N-Benzyl-L-tyrosine (CAS 75768-66-0)
- N-(4-(4-Acetyl-2,5-dimethylfuran-3-yl)phenyl)acetamide (CAS 88484-89-3)
- 2-Hydroxy-5-(trifluoromethoxy)benzoic acid (CAS 129644-57-1)
- Methyl 3,4-dihydro-2H-benzo[b][1,4]oxazine-5-carboxylate (CAS 121591-81-9)
- 3-(Difluoromethyl)-5-hydroxypicolinonitrile (CAS 1804759-34-9)
- 1,2-Dimethyl-7-(trifluoromethyl)quinolin-4(1H)-one (CAS 1208393-24-1)
- 1-(Piperidin-1-yl)butan-2-amine (CAS 62453-97-8)
- 6-Chloro-9-hexadecyl-9H-purine (CAS 68180-15-4)
- 1-Pyrenehexanoicacid (CAS 90936-85-9)
- (4-Ethoxy-6-methylpyridin-3-yl)boronic acid (CAS 1704074-04-3)
- 2-(2,5-Dichloro-4-methylphenoxy)acetic acid (CAS 1585-30-4)
- Semaglutide Impurity 2 (CAS CATO-C4X-22262)
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