(3-Bromo-4-methoxyphenyl)methanethiol CAS 63550-23-2
| CAS No. | 63550-23-2 |
| Molecular Formula | C8H9BrOS |
| Molecular Weight | 233.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3-Bromo-4-methoxyphenyl)methanethiol (CAS 63550-23-2), molecular formula C8H9BrOS and molecular weight 233.13 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (3-Bromo-4-methoxyphenyl)methanethiol (C8H9BrOS) is characterized by sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine 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. 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.
As a certified reference material (CRM), (3-Bromo-4-methoxyphenyl)methanethiol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H9BrOS |
| Molecular Weight | 233.13 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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.) | 1975 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- (S)-2-Bromo-4,5,6,7-tetrahydrobenzo[d]thiazol-6-amine (CAS 1909294-15-0)
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- [2-Bromo-6-(methylsulfanyl)phenyl]methanol (CAS 1898133-78-2)
- (5-Bromo-2-methoxyphenyl)methanethiol (CAS 63550-24-3)
- 3-(7-Methoxy-2,3-dihydro-benzo[1,4]dioxin-6-yl)-propionic acid (CAS 883545-08-2)
- Naloxonazine dihydrochloride (CAS 82824-01-9)
- 3-Methyl-2-(pyrrolidin-1-yl)-5-vinylpyridine (CAS 1355200-87-1)
- tert-butyl (2S,4S)-4-azido-2-(methoxymethyl)pyrrolidine-1-carboxylate (CAS 348165-53-7)
- Pitolisant impurity 40 (CAS CATO-C4X-252040)
- N-(2-Methoxy-phenyl)-malonamic acid ethyl ester (CAS 90475-72-2)
- tert-Butyl (3R,4R)-3-(dibenzylamino)-4-hydroxypyrrolidine-1-carboxylate (CAS 1462379-64-1)
- L-Tyrosine, O-(1,1-dimethylethyl)-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, (1R)-2-carboxy-2-[[(1,1-dimethylethoxy)carbonyl]amino]-1-methylethyl ester (CAS 944283-41-4)
- Tocopherol (CAS 1406-66-2)
- Osteogenic Growth Peptide (CAS 132996-61-3)
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