3-Bromo-4-(methylthio)aniline CAS 20901-65-9
| CAS No. | 20901-65-9 |
| Molecular Formula | C7H8BrNS |
| Molecular Weight | 218.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3-Bromo-4-(methylthio)aniline under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
3-Bromo-4-(methylthio)aniline (CAS 20901-65-9), molecular formula C7H8BrNS and molecular weight 218.11 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, sulfur-containing functionality, bromine substitution, an aromatic ring system, 3-Bromo-4-(methylthio)aniline is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 218.11 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.
Physical & Chemical Properties
| Molecular Formula | C7H8BrNS |
| Molecular Weight | 218.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 5-Bromo-2-cyclobutylthiazole (CAS 1086382-50-4)
- 2-Bromo-5-cyclobutylthiazole (CAS 1159814-12-6)
- 2-Bromo-4-cyclobutylthiazole (CAS 1159820-59-3)
- 2-Bromo-4,5,6,7-tetrahydrothieno[2,3-c]pyridine (CAS 1200131-55-0)
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- 3-Bromo-4,5,6,7-tetrahydrothieno[3,2-c]pyridine (CAS 1257854-58-2)
- 5-bromo-2-(ethylsulfanyl)pyridine (CAS 127800-66-2)
- 3-Bromo-5-methyl-2-(methylthio)pyridine (CAS 1289049-50-8)
Recommended Standards
- 2-Bromo-4,5,6,7-tetrahydrothieno[3,2-c]pyridine (CAS 226386-47-6)
- 3-Bromo-4,5,6,7-tetrahydrothieno[2,3-c]pyridine (CAS 744139-13-7)
- 2-Bromo-4,5,6,7-tetrahydro-1,3-benzothiazole (CAS 438568-89-9)
- 3-Bromo-4-methyl-5-(methylthio)pyridine (CAS 2056110-60-0)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com