N-(4-Acetyl-2-chloro-5-methoxyphenyl)acetamide CAS 20871-69-6
| CAS No. | 20871-69-6 |
| Molecular Formula | C10H10ClNO4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 398.84 g/mol gives N-(4-Acetyl-2-chloro-5-methoxyphenyl)acetamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
N-(4-Acetyl-2-chloro-5-methoxyphenyl)acetamide (CAS 20871-69-6), molecular formula C10H10ClNO4C8H13NO2 and molecular weight 398.84 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, N-(4-Acetyl-2-chloro-5-methoxyphenyl)acetamide (C10H10ClNO4C8H13NO2) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 398.84 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).
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 | C10H10ClNO4 C8H13NO2 |
| Molecular Weight | 398.84 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 3-Methyl-3-(3-methyl-[1,2,4]oxadiazol-5-yl)-piperidine hydrochloride (CAS 1361115-20-9)
- rac-(2R,3R)-2-(1-ethyl-1H-imidazol-2-yl)oxane-3-carboxylic acid hydrochloride (CAS 2031242-63-2)
- 1-(4-BRomo-2-chlorophenyl)guanidine (CAS 1249016-90-7)
- n-Cyclopropyl-n'-(3-methyl-1-phenyl-1h-pyrazol-5-yl)benzimidamide (CAS 380420-21-3)
- N-Boc-hexahydro-1H-azepin-4-one (CAS 188975-88-4)
- 1-Allyl-4-(tert-pentyl)cyclohexan-1-ol (CAS 1506051-39-3)
- (R)-5-Nitro-N-(1-phenylethyl)pyridin-2-amine (CAS 64138-65-4)
- 2-Acetamidothiazole-4-sulfonyl chloride (CAS 654072-71-6)
- Ethyl 2-(4-chloro-3-fluorophenyl)-2-oxoacetate (CAS 845790-56-9)
- Liraglutide Impurity 6 TFA Salt (CAS CATO-C4X-19926)
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