2-Bromo-1-(4-nitrophenyl)ethanol CAS 19922-82-8
| CAS No. | 19922-82-8 |
| Molecular Formula | C8H8BrNO3 |
| Molecular Weight | 246.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-Bromo-1-(4-nitrophenyl)ethanol (C8H8BrNO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 246.06 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-Bromo-1-(4-nitrophenyl)ethanol (CAS 19922-82-8), molecular formula C8H8BrNO3 and molecular weight 246.06 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 | C8H8BrNO3 |
| Molecular Weight | 246.06 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 2-Bromo-1-methoxy-4-methyl-3-nitrobenzene (CAS 860734-28-7)
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- Leuprolide Acetate (CAS 74381-53-6)
- 2-Formyl-6-methoxyphenyl 2-chlorobenzoate (CAS 431937-28-9)
- 1-(6-(Aminomethyl)pyridin-2-yl)-N,N-bis(pyridin-2-ylmethyl)methanamine hydrochloride (CAS 2444919-32-6)
- Semaglutide impurity 268 (CAS CATO-C4X-2226268)
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