3-Chloro-n-(2-nitrophenyl)propanamide CAS 2790-97-8
| CAS No. | 2790-97-8 |
| Molecular Formula | C9H9ClN2O3 |
| Molecular Weight | 228.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 228.63 g/mol gives 3-Chloro-n-(2-nitrophenyl)propanamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Chloro-n-(2-nitrophenyl)propanamide (CAS 2790-97-8), molecular formula C9H9ClN2O3 and molecular weight 228.63 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 3-Chloro-n-(2-nitrophenyl)propanamide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 228.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C9H9ClN2O3 |
| Molecular Weight | 228.63 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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- 3-(4-Chloro-2-nitrophenoxy)azetidine (CAS 1219948-69-2)
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Recommended Standards
- 3-Chloro-4-(ethoxycarbonyl)benzoic acid (CAS 911314-33-5)
- 3-Chloro-n-(3-nitrophenyl)propanamide (CAS 60284-53-9)
- 2-Chloro-N-Methyl-N-(3-nitrophenyl)acetamide (CAS 2810-45-9)
- 4-((5-Chloropyridin-2-yl)amino)-4-oxobutanoic acid (CAS 339005-94-6)
- 2-((Isobutylthio)methyl)pyrimidine-4-carboxylic acid (CAS 1483594-78-0)
- N-(7-(hydroxy(phenyl)methyl)-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-4-methylbenzenesulfonamide (CAS 886493-41-0)
- Ethyl (4-(2-(cyclohexylamino)-2-oxoethyl)thiazol-2-yl)carbamate (CAS 946236-57-3)
- 2-(3-Fluorophenyl)benzo[d]oxazole-5-carboxylic acid (CAS 1018578-59-0)
- 3-Chloro-N-methyl-N-((3-(p-tolyl)-1,2,4-oxadiazol-5-yl)methyl)benzamide (CAS 896659-80-6)
- 4-ethyl-4H,5H,6H,7H-[1,2,5]selenadiazolo[3,4-d]pyrimidine-5,7-dione (CAS 2934736-74-8)
- 3-Bromo-4-(3,3-difluoroazetidin-1-yl)nitrobenzene (CAS 1779120-47-6)
- Methyl 3-(hydrazinylmethyl)benzoate (CAS 883864-68-4)
- Neocarlinoside (CAS 83151-89-7)
- Semaglutide impurity 24 (CAS CATO-C4X-222624)
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