3-Bromo-4-methoxybenzene-1-thiol CAS 90150-97-3
| CAS No. | 90150-97-3 |
| Molecular Formula | C7H7BrOS |
| Molecular Weight | 219.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Bromo-4-methoxybenzene-1-thiol (CAS 90150-97-3), molecular formula C7H7BrOS and molecular weight 219.10 g/mol, is a CATO reference standard with documented purity and traceability.
3-Bromo-4-methoxybenzene-1-thiol (C7H7BrOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 3-Bromo-4-methoxybenzene-1-thiol 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 | C7H7BrOS |
| Molecular Weight | 219.10 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.) | 1982 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2-Bromo-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine (CAS 365996-07-2)
- 4-Bromo-2-(methylthio)phenol (CAS 89677-55-4)
- 2-Bromo-1-(thiophen-2-yl)propan-1-one (CAS 75815-46-2)
- 4-Bromo-2,5-dimethylthiophene-3-carbaldehyde (CAS 887575-78-2)
- 1-bromo-2-cyclopropoxy-3-fluorobenzene (CAS 1243454-24-1)
- 2,2,2-Trifluoroethyl 4-nitrobenzene-1-sulfonate (CAS 141516-55-4)
- Ethyl 3,5-dimethyl-1H-indole-2-carboxylate (CAS 16423-76-0)
- 4’-(1H-imidazol-1-ylmethyl)-1,1’-biphenyl-2-carbonitrile (CAS 929973-09-1)
- Ethyl 4-(4-methylpiperazin-1-yl)benzoate (CAS 773137-71-6)
- Glycerol Impurity 35 (CAS 18371-75-0)
- tert-Butyl ((1R,3R,6S)-7-oxabicyclo[4.1.0]heptan-3-yl)carbamate (CAS 1350636-88-2)
- Methotrexate impurity 50 (CAS CATO-C4X-115450)
- S-Benzyl 4-methylbenzenesulfonothioate (CAS 16601-02-8)
- Semaglutide impurity 248 (CAS CATO-C4X-2226248)
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