Ethyl 5-bromo-2-((tert-butoxycarbonyl)amino)thiophene-3-carboxylate CAS 1260664-49-0
| CAS No. | 1260664-49-0 |
| Molecular Formula | C12H16BrNO4S |
| Molecular Weight | 350.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl 5-bromo-2-((tert-butoxycarbonyl)amino)thiophene-3-carboxylate 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.
CATO supplies Ethyl 5-bromo-2-((tert-butoxycarbonyl)amino)thiophene-3-carboxylate (CAS 1260664-49-0), a certified reference material (molecular formula C12H16BrNO4S, MW 350.23 g/mol) for analytical method development and quality control.
The molecular framework of Ethyl 5-bromo-2-((tert-butoxycarbonyl)amino)thiophene-3-carboxylate (C12H16BrNO4S) 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. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C12H16BrNO4S |
| Molecular Weight | 350.23 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- cis-3-Amino-4-methoxy-pyrrolidine-1-carboxylic acid tert-butyl ester hydrochloride (CAS 1993218-08-8)
- 3-Bromo-7-(chlorodifluoromethyl)-2-methyl-5-[4-(trifluoromethyl)phenyl]pyrazolo[1,5-a]pyrimidine (CAS 439097-20-8)
- 2-(3-Iodopiperidin-1-yl)acetic acid (CAS 1353957-21-7)
- (R)-5-Ethylpyrrolidin-2-one (CAS 106203-90-1)
- 4-(2,6-Difluorophenyl)piperidine (CAS 1019373-70-6)
- 3-tert-Butyl-4-nitro-1H-pyrazol-5-ol (CAS 873920-66-2)
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- N-(5,7-Dibromoquinolin-8-yl)-4-fluorobenzenesulfonamide (CAS 879015-61-9)
- Semaglutide-d5 (CAS CATO-C4X-2226153)
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