2,4-Dichloro-5-methylaniline CAS 17601-75-1
| CAS No. | 17601-75-1 |
| Molecular Formula | C7H7Cl2N |
| Molecular Weight | 176.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,4-Dichloro-5-methylaniline is closely related to a nitrile group, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,4-Dichloro-5-methylaniline (CAS 17601-75-1), molecular formula C7H7Cl2N and molecular weight 176.04 g/mol, is a CATO reference standard with documented purity and traceability.
2,4-Dichloro-5-methylaniline (C7H7Cl2N) contains a nitrile group, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H7Cl2N |
| Molecular Weight | 176.04 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 tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichloro Standards
- 4,6-Dichloro-2,3-dimethylpyridine (CAS 101252-84-0)
- 2,5-Dichloro-N-methylaniline (CAS 10224-70-1)
- 2,3-Dichloro-5-ethylpyridine (CAS 104310-10-3)
- 2,5-Dichloro-3,6-dimethylpyridine (CAS 125014-98-4)
- 2,3-dichloro-5-methylaniline (CAS 13711-29-0)
- 2,5-Dichloro-3-methylaniline (CAS 1379291-18-5)
- 3,6-Dichloro-2,4-dimethylpyridine (CAS 1639373-35-5)
- 2,3-Dichloro-4-methylaniline (CAS 80026-12-6)
Recommended Standards
- [2-(methylsulfanyl)pyrimidin-5-yl]boronic acid (CAS 348098-29-3)
- 2-chloro-4-(chloromethyl)-6-methylpyridine (CAS 162046-59-5)
- 1-(2,5-Dichlorophenyl)methanamine hydrochloride (CAS 42365-57-1)
- 2-Chloro-5-(chloromethyl)-3-methylpyridine (CAS 150807-88-8)
- 2-Amino-4-(tert-pentyl)phenol (CAS 91339-74-1)
- 3-(3-(Naphthalen-1-yloxy)propyl)-1H-indole-2-carboxylic acid (CAS 1072899-39-8)
- (S)-Methyl 2-(3-hydroxypyrrolidin-1-yl)-5-(trifluoromethyl)benzoate (CAS 1515857-06-3)
- 19(R)-hydroxyprostaglandina2 (CAS 52087-58-8)
- 3-(Prop-2-en-1-yloxy)propan-1-amine (CAS 105939-61-5)
- 1-(2-Isopropoxypyridin-3-yl)ethanone (CAS 1551553-85-5)
- 1-Amino-3-(4-chloro-3-methyl-phenoxy)-propan-2-ol (CAS 71954-32-0)
- Ethyl 7-oxo-7-(2-(pyrrolidin-1-ylmethyl)phenyl)heptanoate (CAS 898775-36-5)
- 5-[(2-methoxyphenyl)amino]-1,3,4-thiadiazole-2-thiol (CAS 52494-33-4)
- Semaglutide impurity 215 (CAS CATO-C4X-2226215)
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