2-Chloro-1-methoxy-4-(methylthio)benzene CAS 98490-83-6
| CAS No. | 98490-83-6 |
| Molecular Formula | C8H9ClOS |
| Molecular Weight | 188.67 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.
2-Chloro-1-methoxy-4-(methylthio)benzene (CAS 98490-83-6), molecular formula C8H9ClOS and molecular weight 188.67 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H9ClOS, 2-Chloro-1-methoxy-4-(methylthio)benzene contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 188.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C8H9ClOS |
| Molecular Weight | 188.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- (5-Chloro-2-methoxy-phenyl)-methanethiol (CAS 1155100-13-2)
- 5-Chloro-2-(methylthio)benzyl alcohol (CAS 120121-38-2)
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- 3-Chloro-4-ethoxybenzenethiol (CAS 1378801-10-5)
- 1-(4-Chloro-5-ethylthiophen-2-yl)ethan-1-one (CAS 1399661-79-0)
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