3-Bromo-4-methyl-benzenethiol CAS 19075-64-0
| CAS No. | 19075-64-0 |
| Molecular Formula | C7H7BrS |
| Molecular Weight | 203.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Bromo-4-methyl-benzenethiol is closely related to sulfur-containing functionality, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Bromo-4-methyl-benzenethiol (CAS 19075-64-0), molecular formula C7H7BrS and molecular weight 203.10 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to sulfur-containing functionality, bromine substitution, an aromatic ring system, 3-Bromo-4-methyl-benzenethiol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 203.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-Bromo-4-methyl-benzenethiol 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 | C7H7BrS |
| Molecular Weight | 203.10 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.) | 1962 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 3-Bromo-2-methylbenzenethiol (CAS 1263377-44-1)
- 2-Bromo-3-methylbenzenethiol (CAS 1263377-50-9)
- 2-Bromo-6-methylbenzenethiol (CAS 1349708-74-2)
- 4-Bromo-2-methylbenzene-1-thiol (CAS 14395-51-8)
- 4-Bromo-3-methylbenzenethiol (CAS 14395-52-9)
- 2-Bromo-4-methylbenzenethiol (CAS 14395-53-0)
- 3-Bromo-5-methyl-benzenethiol (CAS 1822973-12-5)
- 2-Bromo-5-methylbenzenethiol (CAS 19693-10-8)
Recommended Standards
- 4-Bromobenzyl mercaptan (CAS 19552-10-4)
- 2,3-Difluoro-4-nitrobenzoic acid (CAS 1806370-35-3)
- 2,6-Difluoro-4-nitrobenzoic acid (CAS 196194-57-7)
- 2,4-Difluoro-6-nitrobenzoic acid (CAS 1690669-99-8)
- 4-Bromo-2-chloro-5-(difluoromethyl)-3-methoxypyridine (CAS 1804686-29-0)
- 10074-G5 (CAS 413611-93-5)
- 8 β,9α-Dihydroxy-10 β,11 β-epoxy-8,9,10,11-tetrahydrobenzo[a]anthracene (CAS 64937-39-9)
- 1,3-Phenylenebis((4-fluorophenyl)methanone) (CAS 108464-88-6)
- 1-(4-Bromo-2-fluorophenyl)-3-(o-tolyl)propan-1-one (CAS 898789-82-7)
- 2,4-Difluoro-N-(4-((phenylsulfinyl)methyl)phenyl)benzamide (CAS 477710-62-6)
- 2,4,5-Tribromodiphenyl Ether (CAS 337513-56-1)
- 4-(Aminomethyl)bicyclo[2.2.2]octan-1-ol;hydrochloride (CAS 943845-85-0)
- Boceprevir Metabolite M4 (CAS 816444-90-3)
- TRAF6 Control Peptide trifluoroacetate salt (CAS 852690-80-3)
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