2-Chloro-1-(4-nitrophenyl)ethan-1-one CAS 34006-49-0
| CAS No. | 34006-49-0 |
| Molecular Formula | C8H6ClNO3 |
| Molecular Weight | 199.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Chloro-1-(4-nitrophenyl)ethan-1-one is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Chloro-1-(4-nitrophenyl)ethan-1-one (CAS 34006-49-0) is a high-purity analytical reference standard with the molecular formula C8H6ClNO3 and a molecular weight of 199.59 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 2-Chloro-1-(4-nitrophenyl)ethan-1-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 199.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Chloro-1-(4-nitrophenyl)ethan-1-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H6ClNO3 |
| Molecular Weight | 199.59 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.) | 1966 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- Methyl 2-chloro-6-formylisonicotinate (CAS 1006598-63-5)
- 4-Chloro-2-methoxy-5H,6H,7H-pyrrolo[2,3-d]pyrimidin-6-one (CAS 1093799-53-1)
- 2-Chloro-1-(2-nitrophenyl)ethanone (CAS 113337-37-4)
- Methyl 5-chloro-6-formyl-3-pyridinecarboxylate (CAS 1134777-23-3)
- 3’-Chloro-4’-nitroacetophenone (CAS 116686-84-1)
- 1-(3-Chloro-5-nitrophenyl)ethan-1-one (CAS 1207175-00-5)
- 1-Chloro-7-nitro-1,2-dihydropyrrolo[1,2-a]pyrazine (CAS 1209090-23-2)
- Methyl 2-chloro-5-formylisonicotinate (CAS 1211534-97-2)
Recommended Standards
- 2-Chloro-1-(3-nitrophenyl)ethanone (CAS 99-47-8)
- 2-Chloro-4-(2-nitrovinyl)phenol (CAS 61131-66-6)
- 2’-Chloro-5’-nitroacetophenone (CAS 23082-50-0)
- 2-Methyl-3-nitrobenzoyl chloride (CAS 39053-41-3)
- N-((1R,3r,5S)-3-(Difluoromethyl)-8-azabicyclo[3.2.1]octan-3-yl)-2-methylpropane-2-sulfinamide (CAS 2409582-11-0)
- 4-Bromo-3-hydroxybenzenesulfonamide (CAS 1243373-06-9)
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- 2-Iodo-1,2,3,4-tetrahydronaphthalene (CAS 117408-86-3)
- (R)-3-Amino-1-(2,4-dimethoxybenzyl)pyrrolidin-2-one hydrochloride (CAS 1951425-09-4)
- 2-[Boc(methyl)amino]acetonitrile (CAS 180976-09-4)
- tert-Butyl 3-((di-tert-butoxycarbonyl)amino)-5-(1-hydroxyethyl)-1H-pyrazole-1-carboxylate (CAS 1439824-04-0)
- (2E,4S)-4-Amino-5-[(3S)-2-oxo-3-pyrrolidinyl]-2-pentenoic Acid Ethyl Ester (CAS 328086-61-9)
- N-(2-methoxyphenyl)ethanethioamide (CAS 29277-46-1)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
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