1-Bromomethyl-4-nitro-naphthalene CAS 16855-41-7
| CAS No. | 16855-41-7 |
| Molecular Formula | C11H8BrNO2 |
| Molecular Weight | 266.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Bromomethyl-4-nitro-naphthalene.
1-Bromomethyl-4-nitro-naphthalene (CAS 16855-41-7), molecular formula C11H8BrNO2 and molecular weight 266.09 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H8BrNO2, 1-Bromomethyl-4-nitro-naphthalene 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 266.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C11H8BrNO2 |
| Molecular Weight | 266.09 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 tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1961 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 3,5-Difluoro-6-oxo-1,6-dihydropyridine-2-carbonitrile (CAS 1049678-65-0)
- 2-Methoxy-5-(4-methylpiperazin-1-yl)aniline (CAS 1021428-48-7)
- 4-(2-Aminoethyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (CAS 1501186-17-9)
- 2-Bromo-1-(2-bromo-3-nitrophenyl)ethanone (CAS 1427326-90-6)
- 1-Chloro-4-(2-(4-isopropylbenzylidene)hydrazinyl)phthalazine (CAS 380554-33-6)
- 6-Ethoxybenzo[d]thiazole-2-carboxylic acid (CAS 13789-94-1)
- 1,3-Dihydroisobenzofuran-5-carbaldehyde (CAS 89424-83-9)
- Semaglutide impurity 267 (CAS CATO-C4X-2226267)
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