2-Chloro-5-(methylsulfanyl)aniline CAS 15945-75-2
| CAS No. | 15945-75-2 |
| Molecular Formula | C7H8ClNS |
| Molecular Weight | 173.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 173.66 g/mol gives 2-Chloro-5-(methylsulfanyl)aniline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Chloro-5-(methylsulfanyl)aniline (CAS 15945-75-2), molecular formula C7H8ClNS and molecular weight 173.66 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H8ClNS, 2-Chloro-5-(methylsulfanyl)aniline contains a nitrile group, sulfur-containing functionality, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 173.66 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C7H8ClNS |
| Molecular Weight | 173.66 g/mol |
| 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.) | 1961 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-5-[(methylsulfanyl)methyl]pyridine (CAS 1021870-94-9)
- 5-Chloro-2-(ethylthio)pyridine (CAS 102645-38-5)
- 2-chloro-4-[(methylsulfanyl)methyl]pyridine (CAS 1247789-01-0)
- 2-Chloro-4-(ethylsulfanyl)pyridine (CAS 1339527-11-5)
- 4-Chloro-3-(methylsulfanyl)aniline (CAS 13442-44-9)
- 2-Chloro-5-cyclobutylthiazole (CAS 1412955-40-8)
- 2-chloro-4H,5H,6H-cyclopenta[b]thiophen-4-amine (CAS 1518717-54-8)
- 5-Chloro-2-(methylsulfanyl)aniline (CAS 16423-54-4)
Recommended Standards
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- 2-(Chloromethyl)-4-cyclopropyl-1,3-thiazole (CAS 170881-60-4)
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- 1-(4-Hydroxyphenyl)-3-propylurea (CAS 39617-88-4)
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