1-(4-Chlorophenoxy)-4-nitro-2-(trifluoromethyl)benzene CAS 21802-08-4
| CAS No. | 21802-08-4 |
| Molecular Formula | C13H7ClF3NO3 |
| Molecular Weight | 317.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-(4-Chlorophenoxy)-4-nitro-2-(trifluoromethyl)benzene (CAS 21802-08-4), molecular formula C13H7ClF3NO3 and molecular weight 317.65 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(4-Chlorophenoxy)-4-nitro-2-(trifluoromethyl)benzene (C13H7ClF3NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. 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 317.65 g/mol, it falls into the moderately-high-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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H7ClF3NO3 |
| Molecular Weight | 317.65 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Chlorophenoxy Standards
- 1-(3-Chlorophenoxy)-2-nitro-4-(trifluoromethyl)benzene (CAS 500535-61-5)
- 1-(4-Chlorophenoxy)-2-Nitro-4-(Trifluoromethyl)Benzene (CAS 322-75-8)
- 3-(4-Chlorophenoxy)-5-trifluoromethylpyridine-2-carboxylic acid (CAS 2088942-49-6)
- 4-(4-Chlorophenoxy)-N,N-dimethyl-6-(trifluoromethyl)pyrimidin-2-amine (CAS 338792-32-8)
- 6-((2-Chlorophenoxy)(phenyl)methyl)morpholin-3-one (CAS 93886-33-0)
- 6-((4-Chlorophenoxy)(phenyl)methyl)morpholin-3-one (CAS 93886-37-4)
- 3-(2-Chlorophenoxy)-7-hydroxy-2,8-dimethyl-4h-chromen-4-one (CAS 1049606-62-3)
- 4-(4-(4-Chlorophenoxy)-5-methyl-1H-pyrazol-3-yl)benzene-1,3-diol (CAS 308298-51-3)
Recommended Standards
- 2-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)benzoic acid (CAS 852952-20-6)
- 1-(4-Bromo-3-methylphenyl)-7-chloroheptan-1-one (CAS 898760-98-0)
- 2-Chloro-1-(3-Nitrophenoxy)-4-(Trifluoromethyl)Benzene (CAS 62476-57-7)
- 2-Chloro-4-nitro-1-(3-(trifluoromethyl)phenoxy)benzene (CAS 40718-13-6)
- 5-Fluoro-1,2,3,4-tetrahydroquinolin-8-amine (CAS 1393179-55-9)
- 2-Ethyl-6-methoxy-2H-pyran-3(6H)-one (CAS 60249-14-1)
- 3-Amino-N,N-diethylbenzenesulfonamide (CAS 10372-41-5)
- Methyl (R)-3-amino-3-(3,4-dimethylphenyl)propanoate (CAS 1213472-69-5)
- 2-Cyclohexyl-N-((1-(4-methoxyphenyl)-1H-tetrazol-5-yl)methyl)acetamide (CAS 946232-23-1)
- N-[4-(Pyrimidin-2-yloxy)phenyl]acetamide (CAS 24550-10-5)
- TERT-BUTYL 3-METHOXY-4-NITROBENZOATE (CAS 123330-91-6)
- 2-Chloro-N-(3-(5,7-dimethylbenzo[d]oxazol-2-yl)-2-methylphenyl)-4-methylbenzamide (CAS 590395-96-3)
- 4-(3-Aminopyridin-2-yl)benzoic acid (CAS 886505-75-5)
- Semaglutide Impurity 150 xTFA (CAS CATO-C4X-2226150)
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