Methyl 5-bromo-1-tosyl-1H-pyrrole-3-carboxylate CAS 881673-79-6
| CAS No. | 881673-79-6 |
| Molecular Formula | C13H12BrNO4S |
| Molecular Weight | 358.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C13H12BrNO4S, Methyl 5-bromo-1-tosyl-1H-pyrrole-3-carboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 358.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Methyl 5-bromo-1-tosyl-1H-pyrrole-3-carboxylate (CAS 881673-79-6), molecular formula C13H12BrNO4S and molecular weight 358.21 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C13H12BrNO4S |
| Molecular Weight | 358.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- 6-Methoxypyridazine-3-sulfonyl fluoride (CAS 454182-00-4)
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- Ethyl N-Cbz-2-piperidineacetate (CAS 167170-23-2)
- 2-Bromo-N-(tert-butyl)-5-nitroaniline (CAS 1809204-01-0)
- CBP501 Affinity Peptide trifluoroacetate salt (CAS 1351804-17-5)
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