2-Bromo-4-methoxybenzenethiol CAS 145915-19-1
| CAS No. | 145915-19-1 |
| Molecular Formula | C7H7BrOS |
| Molecular Weight | 219.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 2-Bromo-4-methoxybenzenethiol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 219.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
2-Bromo-4-methoxybenzenethiol (CAS 145915-19-1), molecular formula C7H7BrOS and molecular weight 219.10 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | 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.) | 1998 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- (S)-1-Bromo-4-(methylsulfinyl)benzene (CAS 145166-15-0)
- 4-Bromo-2-methoxybenzenethiol (CAS 145915-30-6)
- (1S,2S)-rel-2-(2-Bromo-1,3-thiazol-5-yl)cyclopropan-1-amine (CAS 1431304-52-7)
- 4-Bromo-6-methyl-2-(methylthio)pyrimidine (CAS 1510016-13-3)
- Acid Green 9 (CAS 4857-81-2)
- 6-(((4-Chlorophenyl)sulfinyl)methyl)-N,2-dimethylpyrimidin-4-amine (CAS 338960-34-2)
- methyl 4-sulfanylcyclopent-2-ene-1-carboxylate (CAS 344324-77-2)
- 2,2,2-Trifluoroethyl (6-(pyrrolidin-1-yl)pyridin-3-yl)carbamate (CAS 1221723-70-1)
- Verazide (CAS 93-47-0)
- Ethyl 4-(5-Methyl-1,2,4-oxadiazol-3-yl)benzoate (CAS 850375-01-8)
- Glycinesodiumsalthydrate (CAS 313222-98-9)
- 3-((2-Chlorophenoxy)methyl)aniline (CAS 1016533-99-5)
- 1-propanesulfonic acid 5284-66-2 InChI=1/C3H8O3S/c1-2-3-7(4,5)6/h2-3H2,1H3,(H,4,5,6 propane-1-sulfonic acid (CAS 5284-66-2)
- Des-Tyr10-Tirzepatide (CAS CATO-CPTD788680)
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