5-Bromo-N-(2-methyl-1,3-dioxoisoindolin-4-yl)thiophene-2-carboxamide CAS 683232-13-5
| CAS No. | 683232-13-5 |
| Molecular Formula | C14H9BrN2O3S |
| Molecular Weight | 365.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Bromo-N-(2-methyl-1,3-dioxoisoindolin-4-yl)thiophene-2-carboxamide (CAS 683232-13-5), molecular formula C14H9BrN2O3S and molecular weight 365.20 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Bromo-N-(2-methyl-1,3-dioxoisoindolin-4-yl)thiophene-2-carboxamide (C14H9BrN2O3S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 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. 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.
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 | C14H9BrN2O3S |
| Molecular Weight | 365.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 1-[(4-Ethylsulfonyl-2-fluoro)phenyl]piperazine (CAS 845617-58-5)
- Poly(oxy-1,2-ethanediyl),α-(carboxymethyl)-ω-[2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]ethoxy]- (CAS 675606-79-8)
- 3-Methyl-1-[4-(trifluoromethyl)benzoyl]piperazine (CAS 1240568-20-0)
- 8-(Ethylamino)-7-isopentyl-3-methyl-3,7-dihydro-1H-purine-2,6-dione (CAS 300388-03-8)
- 2-Methylthieno[2,3-b]thiophene (CAS 26238-22-2)
- 4-Pyrrolidinophenylboronic Acid Pinacol Ester (CAS 852227-90-8)
- Ethyl 9-(3-methyl-5-pentylfuran-2-yl)nonanoate (CAS 2159059-31-9)
- N-(6-Amino-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)formamide (CAS 10184-00-6)
- 6-Chloro-N-(2-methoxyethyl)pyridine-3-carboxamide (CAS 1016741-22-2)
- Ginseng Tetrapeptide (CAS 178553-95-2)
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