1,4-Dibromo-3-methoxynaphthalen-2-ol CAS 1335113-07-9
| CAS No. | 1335113-07-9 |
| Molecular Formula | C11H8Br2O2 |
| Molecular Weight | 331.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,4-Dibromo-3-methoxynaphthalen-2-ol (CAS 1335113-07-9), molecular formula C11H8Br2O2 and molecular weight 331.99 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H8Br2O2, 1,4-Dibromo-3-methoxynaphthalen-2-ol contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 331.99 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
CATO manufactures 1,4-Dibromo-3-methoxynaphthalen-2-ol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H8Br2O2 |
| Molecular Weight | 331.99 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, 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 4,5-Dibromo-2-(2-methoxyphenyl)-1H-imidazole (CAS 1190627-25-8)
- 5,6-Dibromo-N-methyl-1h-indole-3-carboxamide (CAS 1424507-07-2)
- 3,4-Dibromo-1-(pyridin-2-ylmethyl)-1H-pyrrol-2(5H)-one (CAS 1706429-16-4)
- 3,4-Dibromo-1-(pyridin-3-ylmethyl)-1H-pyrrol-2(5H)-one (CAS 1706441-56-6)
- 3,6-Dibromo-5,7-dimethyl-1,8-naphthyridin-2-ol (CAS 2140316-48-7)
- 6,8-Dibromo-2,3-dimethylquinazolin-4(3H)-one (CAS 86993-61-5)
- 6,8-Dibromo-2-ethylquinazolin-4(1H)-one (CAS 88624-85-5)
- 2,4-Dibromo-6-nitroquinoline (CAS 437708-86-6)
Recommended Standards
- 5-(2-Bromoethyl)-3-(5-bromopyridin-3-yl)isoxazole (CAS 1231244-48-6)
- 2-bromo-7-iodo-5h-pyrrolo[3,2-b]pyrazine 3-iodo-5-bromo-1h-pyrazolo[3,4-b]pyridine 5-Bromo-3-iodo-1H-pyrazolo[3,4-b]pyridine 5-bromo-3-iodo-1h-pyrazol... 5-bromo-3-iodo-1h-pyrazolo[3 5-bromo-3-iodo-1h-pyrazolo[3,4-b]pyrazine 875781-18-3 (CAS 875781-18-3)
- 7-Bromo-2,3-dichlorodibenzo-p-dioxin (CAS 97741-74-7)
- 2-(Butylsulfanyl)-1-phenylethan-1-one (CAS 6306-17-8)
- 5,6-Dichloro-8-methylquinoxaline (CAS 532935-00-5)
- 1,1,1-Trifluorobut-3-yn-2-ol (CAS 1592412-29-7)
- (S)-4-(2-Bromo-6-formylphenyl)-1-(tert-butoxycarbonyl)piperazine-2-carboxylic acid 1787021-16-2 (CAS 1787021-16-2)
- 1-(p-Tolyl)-1H-pyrazolo[3,4-d]pyrimidine-4,6-diol (CAS 1209777-97-8)
- Perfluoroacetophenone (CAS 652-22-2)
- [4-[[(2S)-2-[[(2S)-2-[[(2S)-2-[3-[2-[2-[2-[2-(2,5-dioxopyrrol-1-yl)ethoxy]ethoxy]ethoxy]ethoxy]propanoylamino]propanoyl]amino]propanoyl]amino]-4-oxo-4-(tritylamino)butanoyl]amino]phenyl]methyl (4-nitrophenyl) carbonate (CAS 2055042-72-1)
- 3-(1-Benzyl-1h-1,2,3-triazol-4-yl)aniline (CAS 1151920-00-1)
- 4-{[2-chloro-5-(trifluoromethyl)phenyl]carbamoyl}phenyl N,N-dimethylsulfamate (CAS 338396-26-2)
- Rosuvastatin EP Impurity K Calcium Salt (E-isomer) (CAS 2290571-51-4 (free acid))
- Des-Ser32-Tirzepatide (CAS CATO-CPTD788942)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com