4-Bromo-3-chloro-2-methylbenzenethiol CAS 1208075-31-3
| CAS No. | 1208075-31-3 |
| Molecular Formula | C7H6BrClS |
| Molecular Weight | 237.54 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.
CATO supplies 4-Bromo-3-chloro-2-methylbenzenethiol (CAS 1208075-31-3), a certified reference material (molecular formula C7H6BrClS, MW 237.54 g/mol) for analytical method development and quality control.
Owing to sulfur-containing functionality, chlorine/bromine substitution, an aromatic ring system, 4-Bromo-3-chloro-2-methylbenzenethiol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 237.54 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 4-Bromo-3-chloro-2-methylbenzenethiol 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 | C7H6BrClS |
| Molecular Weight | 237.54 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.) | 1990 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 1-Bromo-3-chloro-4-(methylthio)benzene (CAS 101084-82-6)
- 2-Bromo-4-chloro-6-methylbenzenethiol (CAS 1208075-34-6)
- 4-Bromo-2-chloro-6-methylbenzenethiol (CAS 1208075-50-6)
- 4-Bromo-5-chloro-2-methylbenzenethiol (CAS 1208076-88-3)
- 3-Bromo-2-chloro-5-methylthiophenol (CAS 1263377-14-5)
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Recommended Standards
- 5-Chloro-2,2-difluoro-6-nitrobenzo[d][1,3]dioxole (CAS 1027513-83-2)
- 2-(2,2-dichlorocyclopropyl)ethane-1-sulfonyl chloride (CAS 1909317-56-1)
- Allisartan Isoproxil Impurity 8 (CAS CATO-C4X-32178)
- 4-Bromo-5-chloro-3-methyl-1-propyl-1H-pyrazole (CAS 29939-07-9)
- N-(2-fluorophenyl)-2-piperazin-1-ylacetamide (CAS 937618-31-0)
- 3-(2-{[(4-chlorophenyl)methyl]sulfanyl}-2-methylpropyl)-1-phenylurea (CAS 337920-40-8)
- 3-Chloro-5-[(4-methoxybenzyl)oxy]benzonitrile (CAS 1213790-87-4)
- 3-(Tert-butyl)picolinaldehyde (CAS 1211579-00-8)
- Clevidipine butyrate Impurity 22 (CAS CATO-C4X-101522)
- 4-Cyclopropoxy-2-methoxy-5-(methylthio)pyridine (CAS 1243454-81-0)
- 4-(Chloromethyl)-2,2-dimethyl-1,2,3,4-tetrahydrobenzo[f]isoquinoline (CAS 476333-33-2)
- Vernakalant Impurity 4 (CAS 795282-28-9)
- 3,4-Propylenedioxythiophene-2,5-dicarboxylic acid (CAS 177364-98-6)
- D-allo-Thr7-Semaglutide (CAS CATO-C4X-2226242)
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