1-(2-Chloro-5-fluoro-4-nitrophenyl)ethanone CAS 149903-96-8
| CAS No. | 149903-96-8 |
| Molecular Formula | C8H5ClFNO3 |
| Molecular Weight | 217.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 217.58 g/mol gives 1-(2-Chloro-5-fluoro-4-nitrophenyl)ethanone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 1-(2-Chloro-5-fluoro-4-nitrophenyl)ethanone (CAS 149903-96-8), a certified reference material (molecular formula C8H5ClFNO3, MW 217.58 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, 1-(2-Chloro-5-fluoro-4-nitrophenyl)ethanone is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 217.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 1-(2-Chloro-5-fluoro-4-nitrophenyl)ethanone 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 | C8H5ClFNO3 |
| Molecular Weight | 217.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1999 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 4-Chloro-6,7,8-trifluoroquinoline (CAS 1020087-33-5)
- 1-(2-Chloro-4-fluoro-5-nitrophenyl)ethanone (CAS 110322-88-8)
- 2-Chloro-5,6,8-trifluoroquinoline (CAS 1188002-18-7)
- 1-(4-Chloro-2-fluoro-5-nitrophenyl)ethanone (CAS 1292836-16-8)
- 2-chloro-1-(2-fluoro-4-nitrophenyl)ethan-1-one (CAS 1539494-36-4)
- [(4-chloro-3-fluorophenyl)carbamoyl]formic acid (CAS 480451-91-0)
- Methyl 2-chloro-5-fluoro-6-formylnicotinate (CAS 2750929-50-9)
- 5-Chloro-2,4-dinitroaniline (CAS 3013-86-3)
Recommended Standards
- 2-Fluoro-4-methyl-6-nitrobenzoyl chloride (CAS 1806306-40-0)
- 2-Fluoro-4-methyl-5-nitrobenzoyl chloride (CAS 1806427-38-2)
- 6-Chloro-2,4-Dinitroaniline (CAS 3531-19-9)
- Methyl 6-chloro-3-nitropyrazine-2-carboxylate (CAS 89690-75-5)
- PI4KIIIbeta-IN-9 (CAS 1429624-84-9)
- (Z)-3-(2,4-Dichlorophenyl)acrylic acid (CAS 20595-46-4)
- (1,2-Dichloro-1,2,2-trifluoroethyl)cyclohexane (CAS 219904-98-0)
- Ethyl 3-(3-(pyrrolidin-1-ylmethyl)benzoyl)benzoate (CAS 898770-04-2)
- 4-{3-[4-(Trifluoromethyl)phenyl]-prop-2-enoyl}benzoic acid (CAS 722522-75-0)
- 2-Bromo-4-methyl-N-(thiophen-2-ylmethyl)aniline (CAS 1019512-14-1)
- DL-1,3-dihydroxy-2-amino-octadecane (CAS 13552-09-5)
- Averantin (CAS 5803-62-3)
- 2-Benzyl-2-azabicyclo[2.2.2]oct-5-ene (CAS 61088-66-2)
- Pancreatic Polypeptide (31-36), amide, human (CAS 74012-13-8)
Why CATO?
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