6-Bromo-2,2-dimethylspiro[chroman-4,4'-imidazolidine]-2',5'-dione CAS 82319-96-8
| CAS No. | 82319-96-8 |
| Molecular Formula | C13H13BrN2O3 |
| Molecular Weight | 325.16 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.
6-Bromo-2,2-dimethylspiro[chroman-4,4'-imidazolidine]-2',5'-dione (CAS 82319-96-8), molecular formula C13H13BrN2O3 and molecular weight 325.16 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H13BrN2O3, 6-Bromo-2,2-dimethylspiro[chroman-4,4'-imidazolidine]-2',5'-dione 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 325.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C13H13BrN2O3 |
| Molecular Weight | 325.16 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 |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- N,N-Bis(2-chloroethyl)-3-methyl-4-((2-(quinolin-8-yl)hydrazono)methyl)aniline hydrochloride (CAS 27421-71-2)
- Desvenlavaxine N-dimer (CAS 1187545-61-4)
- 2-(Benzyl(6-chloro-2-(methylthio)pyrimidin-4-yl)amino)ethan-1-ol (CAS 339017-87-7)
- 2-(2,5-Dimethylfuran-3-carboxamido)-3-methylpentanoic acid (CAS 1396972-27-2)
- Benzyl 3-(2-chloro-N-cyclopropylacetamido)pyrrolidine-1-carboxylate (CAS 1353959-73-5)
- Insulin Degludec Impurity 9 (CAS CATO-C4X-21579)
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