1-Bromo-3-chloro-4-methyl-2-(methylthio)benzene CAS 1809168-68-0
| CAS No. | 1809168-68-0 |
| Molecular Formula | C8H8BrClS |
| Molecular Weight | 251.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Bromo-3-chloro-4-methyl-2-(methylthio)benzene.
1-Bromo-3-chloro-4-methyl-2-(methylthio)benzene (CAS 1809168-68-0), molecular formula C8H8BrClS and molecular weight 251.57 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H8BrClS, 1-Bromo-3-chloro-4-methyl-2-(methylthio)benzene contains sulfur-containing functionality, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 251.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C8H8BrClS |
| Molecular Weight | 251.57 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/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
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- 5-Chloro-2-fluoro-4-nitrophenol (CAS 1500154-08-4)
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