4,5-Dichloro-2-methylthioanisole CAS 1803825-17-3
| CAS No. | 1803825-17-3 |
| Molecular Formula | C8H8Cl2S |
| Molecular Weight | 207.12 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.
4,5-Dichloro-2-methylthioanisole (CAS 1803825-17-3), molecular formula C8H8Cl2S and molecular weight 207.12 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4,5-Dichloro-2-methylthioanisole (C8H8Cl2S) is characterized by sulfur-containing functionality, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C8H8Cl2S |
| Molecular Weight | 207.12 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| 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.) | 1995 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichloro Standards
- 2,3-Dichloro-5-methylthioanisole (CAS 1803729-10-3)
- 3,5-Dichloro-2-methylthioanisole (CAS 1803780-70-2)
- 2,5-Dichloro-3-methylthioanisole (CAS 1803824-98-7)
- 2,5-Dichloro-4-methylthioanisole (CAS 1803837-13-9)
- 3,5-Dichloro-4-methylthioanisole (CAS 1803837-22-0)
- 3,4-Dichloro-5-methylthioanisole (CAS 1803845-62-6)
- (2,6-Dichloro-4-methylphenyl)(methyl)sulfane (CAS 1804896-96-5)
- 2,4-Dichloro-5-methylthioanisole (CAS 1806275-36-4)
Recommended Standards
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