1,4-Bis(bromomethyl)naphthalene CAS 58791-49-4
| CAS No. | 58791-49-4 |
| Molecular Formula | C12H10Br2 |
| Molecular Weight | 314.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1,4-Bis(bromomethyl)naphthalene (CAS 58791-49-4), molecular formula C12H10Br2 and molecular weight 314.02 g/mol, is a CATO reference standard with documented purity and traceability.
1,4-Bis(bromomethyl)naphthalene (C12H10Br2) contains bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C12H10Br2 |
| Molecular Weight | 314.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Br-containing |
Related Bis Standards
- 1,2-Bis(bromomethyl)naphthalene (CAS 59882-98-3)
- 1,5-Bis(bromomethyl)naphthalene (CAS 21646-18-4)
- 1,8-Bis(bromomethyl)naphthalene (CAS 2025-95-8)
- 1,4-Bis(bromomethyl)-2,5-dicyanobenzene (CAS 64746-04-9)
- 5-(Bromomethyl)-2-(dimethoxymethyl)-3-(trifluoromethyl)pyridine (CAS 2853569-83-0)
- 4-(Bromomethyl)-2,5-diphenyloxazole (CAS 133130-86-6)
- 6-(Bromomethyl)-4-(3-methoxypropyl)-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 911705-42-5)
- 1-[2-(bromomethyl)-4,4-dimethyl-1-cyclohexen-1-ly]-4-chloro-Benzene (CAS 1027345-22-7)
Recommended Standards
- 1-(1,2-Dibromoethyl)naphthalene (CAS 31838-47-8)
- 1,5-Dibromo-2,6-dimethylnaphthalene (CAS 20027-95-6)
- 3-(Difluoromethoxy)-4-iodobenzoic acid (CAS 1695687-68-3)
- 4-(Difluoromethoxy)-3-iodobenzoic acid (CAS 1131588-14-1)
- N-Octacosane (CAS 630-02-4)
- 3-Amino-5-bromopyridin-4-ol (CAS 101084-20-2)
- 4-Hydroxy-6-(trifluoromethoxy)-2H-chromen-2-one (CAS 1499667-28-5)
- (Z)-[(2H-1,3-Benzodioxol-5-yl)methylidene][(4-fluorophenyl)methyl]amine (CAS 338393-88-7)
- 4-Chloro-2'-formyl-[1,1'-biphenyl]-3-carboxylic acid (CAS 1261958-60-4)
- Ertugliflozin impurity 19 (CAS CATO-C4X-301119)
- 5-Chloro[1,1-biphenyl]-2-yl 3-piperidinyl etherhydrochloride (CAS 1219972-24-3)
- 4-Amino-1-((2R,3R,4S,5R)-5-(difluoromethyl)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one (CAS 1803126-04-6)
- (R)-1-(4-Chloro-2-(trifluoromethyl)phenyl)ethan-1-amine (CAS 1389354-24-8)
- Semaglutide impurity 29 (CAS CATO-C4X-222629)
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