1-Bromo-2-nitronaphthalene CAS 4185-55-1
| CAS No. | 4185-55-1 |
| Molecular Formula | C10H6BrNO2 |
| Molecular Weight | 252.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Bromo-2-nitronaphthalene (CAS 4185-55-1) is a high-purity analytical reference standard with the molecular formula C10H6BrNO2 and a molecular weight of 252.06 g/mol.
Structurally, 1-Bromo-2-nitronaphthalene (C10H6BrNO2) 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 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 252.06 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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 | C10H6BrNO2 |
| Molecular Weight | 252.06 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-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.) | 1958 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 2-Bromo-7-nitronaphthalene (CAS 102153-46-8)
- 3-Bromo-1-nitronaphthalene (CAS 102153-47-9)
- 6-Bromo-1-nitronaphthalene (CAS 102153-48-0)
- 7-Bromo-1-nitronaphthalene (CAS 102153-49-1)
- 5-Bromo-8-hydroxyquinoline-2-carbaldehyde (CAS 1023815-84-0)
- 5-Bromo-4-phenyloxazole-2-carbaldehyde (CAS 1240619-13-9)
- 1-Bromo-8-nitronaphthalene (CAS 13658-56-5)
- 5-Bromo-[1,3]dioxolo[4,5-g]isoquinoline (CAS 1367810-46-5)
Recommended Standards
- 1,2,3,4,5-Pentafluoro-6-(trifluoromethoxy)benzene (CAS 6161-54-2)
- 1-Bromo-3-nitronaphthalene, 97% (CAS 7499-65-2)
- 1-(3-Bromophenyl)-1H-pyrrole-2,5-dione (CAS 53534-14-8)
- 1-Bromo-4-nitronaphthalene (CAS 4236-05-9)
- 2,4-Bis(difluoromethoxy)benzaldehyde (CAS 80395-30-8)
- N-Methyl-4-nitro-1H-benzo[d]imidazol-2-amine (CAS 189045-64-5)
- Methyl-(3-phenyl-[1,2,4]oxadiazol-5-ylmethyl)-amine (CAS 55983-96-5)
- (2-Chloro-3-pyridinyl)(3-hydroxy-1-pyrrolidinyl)-methanone (CAS 1219981-43-7)
- 1-(Benzo[c][1,2,5]thiadiazol-5-yl)-N-methylmethanamine (CAS 933720-17-3)
- Benzenamine, 2-methyl-4-(3-oxetanyloxy)- (CAS 1435954-31-6)
- 2-Fluoro-4-methoxy-3-nitro-1-(trifluoromethyl)benzene (CAS 1881329-69-6)
- 4-Amino-1-(carboxymethyl)pyridin-1-ium chloride (CAS 927183-78-6)
- Ethyl 2-(3-bromophenyl)-4-methylthiazole-5-carboxylate (CAS 1160573-84-1)
- Semaglutide Impurity 130 (CAS 1188328-40-6)
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