2,4-Difluoro-3-phenylaniline CAS 142856-22-2
| CAS No. | 142856-22-2 |
| Molecular Formula | C12H9F2N |
| Molecular Weight | 205.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2,4-Difluoro-3-phenylaniline 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.
2,4-Difluoro-3-phenylaniline (CAS 142856-22-2), molecular formula C12H9F2N and molecular weight 205.20 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution, 2,4-Difluoro-3-phenylaniline is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 205.20 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.
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 | C12H9F2N |
| Molecular Weight | 205.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoro Standards
- 3',4'-Difluoro-[1,1'-biphenyl]-4-amine (CAS 1184136-90-0)
- 2-(Difluoro-phenyl-methyl)-pyridine (CAS 1204295-90-8)
- 2,6-Difluoro-[1,1'-biphenyl]-4-amine (CAS 1208083-67-3)
- 3',4-Difluoro-[1,1'-biphenyl]-3-amine (CAS 1214339-26-0)
- 4,6-Difluoro-[1,1'-biphenyl]-3-amine (CAS 1214372-76-5)
- 2,4'-Difluoro-[1,1'-biphenyl]-4-amine (CAS 1214374-10-3)
- 2,2-Difluoro-2-(3-fluorophenyl)ethanethioamide (CAS 1334148-20-7)
- 2,2-Difluoro-6-azabicyclo[3.2.2]Nonane-5-carboxylic acid (CAS 1394116-73-4)
Recommended Standards
- 2,2-Difluoro-1-(4-Morpholinyl)-4-Penten-1-One (CAS 149229-28-7)
- 2',4'-Difluoro-[1,1'-biphenyl]-3-amine (CAS 160521-67-5)
- 3-fluoro-4-(3-fluorophenyl)aniline (CAS 1214385-47-3)
- tert-butyl 3-(difluoromethylidene)azetidine-1-carboxylate (CAS 1824293-92-6)
- Z-Phe-Gly-OH (CAS 13122-99-1)
- (R)-2-(4-(tert-Butoxycarbonyl)-3-methyl-2-oxopiperazin-1-yl)acetic acid (CAS 1240585-32-3)
- Methyl 2-(1,1-dioxothiolan-3-yl)acetate (CAS 17133-70-9)
- 2,4,5-Trichloropyrimidine (CAS 5750-76-5)
- Pioglitazone Impurity 19 (CAS 144809-26-7)
- 4'-Methylacetophenone (CAS 122-00-9)
- Ethyl 1-oxo-1H-isochromene-4-carboxylate (CAS 15868-28-7)
- 3-(4,5-Dihydro-1H-imidazol-2-yl)-1-methyl-1H-indazole (CAS 1649964-41-9)
- 4-Chloro-3-methylbutanoyl Chloride (CAS 63480-13-7)
- Semaglutide Impurity 129 (CAS 2490269-79-7)
Why CATO?
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