4-Bromo-2-methylthiobenzamide, 97% CAS 397845-03-3
| CAS No. | 397845-03-3 |
| Molecular Formula | C8H8BrNS |
| Molecular Weight | 230.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Bromo-2-methylthiobenzamide, 97% (CAS 397845-03-3), molecular formula C8H8BrNS and molecular weight 230.12 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Bromo-2-methylthiobenzamide, 97% (C8H8BrNS) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C8H8BrNS |
| Molecular Weight | 230.12 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- D-Arabinofuranose (CAS 41546-26-3)
- 1-(2,2-dimethyl-2,3-dihydro-1-benzofuran-5-yl)propan-1-amine hydrochloride (CAS 1311313-92-4)
- 5,6-Dimethyl-2-benzimidazoleethanol (CAS 198487-81-9)
- N'-[(1E)-[4-(Dimethylamino)phenyl]methylidene]-3-(1H-pyrrol-1-yl)thiophene-2-carbohydrazide (CAS 478076-86-7)
- 2-(4-hydrazinylphenyl)acetic acid dihydrochloride (CAS 1909309-05-2)
- 1-Cyclohexyl-N-cyclopentyl-5-oxopyrrolidine-3-carboxamide (CAS 697779-08-1)
- 5,6-Difluoro-2,3-dihydro-1H-inden-1-one (CAS 161712-77-2)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
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