(S)-5-Bromospiro[indene-1,5'-oxazolidine]-2',3,4'(2H)-trione CAS 1889291-05-7
| CAS No. | 1889291-05-7 |
| Molecular Formula | C11H6BrNO4 |
| Molecular Weight | 296.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies (S)-5-Bromospiro[indene-1,5'-oxazolidine]-2',3,4'(2H)-trione (CAS 1889291-05-7), a certified reference material (molecular formula C11H6BrNO4, MW 296.07 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H6BrNO4, (S)-5-Bromospiro[indene-1,5'-oxazolidine]-2',3,4'(2H)-trione contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 296.07 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.
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 | C11H6BrNO4 |
| Molecular Weight | 296.07 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related S Standards
- (R)-5-Bromospiro[indene-1,5'-oxazolidine]-2',3,4'(2H)-trione (CAS 1889291-53-5)
- 5-Bromospiro[chroman-2,4'-piperidin]-4-one (CAS 1241953-09-2)
- 6-Bromospiro[chroman-2,4'-piperidin]-4-one (CAS 690632-08-7)
- 6-Bromospiro[chromane-2,1'-cyclohexan]-4-one (CAS 223416-26-0)
- 6'-Bromospiro[cyclohexane-1,3'-pyrrolo[3,2-b]pyridine]-2',4(1'H)-dione (CAS 1190862-23-7)
- 5'-Bromospiro[imidazolidine-4,1'-[1H]indene]-2,3',5(2'H)-trione (CAS 1889290-24-7)
- (S)-5'-Bromospiro[imidazolidine-4,1'-indene]-2,3',5(2'H)-trione (CAS 1889290-55-4)
- 6-Bromospiro[benzo[d][1,3]oxazine-4,4'-piperidin]-2(1H)-one (CAS 92926-60-8)
Recommended Standards
- 2-(4-Bromo-6-(difluoromethyl)-3-methoxypyridin-2-yl)acetic acid (CAS 1806912-40-2)
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- 1-Bromo-3-(1,1-difluoro-2-methoxyethyl)-5-nitrobenzene (CAS 2883760-09-4)
- 2-(Bromomethyl)-6-(difluoromethyl)-3-hydroxypyridine-5-acetic acid (CAS 1805997-43-6)
- 5-(4-Chlorophenyl)-7-(cyclopropylmethyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine (CAS 1151651-00-1)
- 1-Ethyl-N-(2-(thiophen-2-yl)ethyl)-1H-pyrazole-3-carboxamide (CAS 1210870-02-2)
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- 3-(4-Cyanophenoxy)propane-1-sulfonyl chloride (CAS 1342099-49-3)
- Methyl (S)-2-hydroxy-2-(4-iodo-1,6-dimethyl-1H-pyrrolo[2,3-b]pyridin-5-yl)acetate (CAS 1537883-84-3)
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- 2-Iodo-4-methoxy-6-(trifluoromethyl)pyridine (CAS 1227580-38-2)
- Piperazin-1-yl(m-tolyl)methanone hydrochloride (CAS 100940-01-0)
- Semaglutide impurity 38 (CAS CATO-C4X-222638)
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