4-Bromo-5-chloro-2-methoxybenzenethiol CAS 1208077-90-0
| CAS No. | 1208077-90-0 |
| Molecular Formula | C7H6BrClOS |
| Molecular Weight | 253.54 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.
CATO supplies 4-Bromo-5-chloro-2-methoxybenzenethiol (CAS 1208077-90-0), a certified reference material (molecular formula C7H6BrClOS, MW 253.54 g/mol) for analytical method development and quality control.
4-Bromo-5-chloro-2-methoxybenzenethiol (C7H6BrClOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/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).
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.
Physical & Chemical Properties
| Molecular Formula | C7H6BrClOS |
| Molecular Weight | 253.54 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.) | 1990 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 3-Bromo-5-chloro-2-methoxybenzenethiol (CAS 1037146-92-1)
- 4-Bromo-5-ethylthiophene-2-carbonyl chloride (CAS 1160249-05-7)
- 1-(3-Bromo-5-methylthiophen-2-yl)-2-chloroethan-1-one (CAS 1482239-39-3)
- 4-Bromo-2-chloro-5-methoxybenzenethiol (CAS 2386911-28-8)
- 5-Bromo-4-chloro-6-methyl-2-(methylthio)pyrimidine (CAS 17119-74-3)
- 5-bromo-4-chloro-1H,2H,3H-pyrrolo[2,3-b]pyridin-2-one (CAS 1190316-24-5)
- 6-bromo-4-chloro-1,3-dihydrobenzimidazol-2-one (CAS 1388030-43-0)
- 1-(3-bromo-4-chlorophenyl)cyclopropan-1-ol (CAS 1691720-00-9)
Recommended Standards
- 6-Chloro-3-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2096998-30-8)
- 2-Butoxy-1,3,5-trichlorobenzene (CAS 155014-16-7)
- 4-Amino-3-chlorophenylboronic Acid Pinacol Ester (CAS 721960-43-6)
- 4-Amino-2-chlorobenzeneboronic acid pinacol ester, 97% (CAS 877160-63-9)
- Lorcinadol (CAS 104719-71-3)
- Cyclopropyl(4-methyl-3-(trifluoromethyl)phenyl)methanamine (CAS 1270468-12-6)
- 3-ethylpiperazin-2-one (CAS 90485-52-2)
- Methyl 4-methylpyrrolidine-3-carboxylate hydrochloride (CAS 2565806-68-8)
- Isavuconazole Impurity 68 (CAS CATO-C4X-123668)
- 4-(tert-Butoxy)pyrimidine-5-carbonitrile (CAS 1864685-55-1)
- Tert-butyl 4-(N-methylacetamido)piperidine-1-carboxylate (CAS 197727-57-4)
- Ethyl 3-(5-Methoxy-3-indolyl)propanoate (CAS 76834-78-1)
- (Z)-4-((5-Nitrothiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 89035-35-8)
- Semaglutide impurity 81 (CAS CATO-C4X-222681)
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