1,4-Dimethoxy-3-bromonaphthalene CAS 64648-81-3
| CAS No. | 64648-81-3 |
| Molecular Formula | C12H11BrO2 |
| Molecular Weight | 267.12 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 1,4-Dimethoxy-3-bromonaphthalene.
CATO supplies 1,4-Dimethoxy-3-bromonaphthalene (CAS 64648-81-3), a certified reference material (molecular formula C12H11BrO2, MW 267.12 g/mol) for analytical method development and quality control.
The molecular framework of 1,4-Dimethoxy-3-bromonaphthalene (C12H11BrO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1,4-Dimethoxy-3-bromonaphthalene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H11BrO2 |
| Molecular Weight | 267.12 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Br-containing |
Related Dimethoxy Standards
- 5-(4,5-Dimethoxy-2-nitrophenyl)-1,3,4-oxadiazol-2(3H)-one (CAS 1216654-38-4)
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- 5,8-Dimethoxy-2-(pyrazin-2-yl)quinoline (CAS 860783-98-8)
- (Z)-1,4-Dimethoxy-3-(4-methylpyridin-1-ium-1-yl)-1,4-dioxobut-2-ene-2-thiolate (CAS 1321889-48-8)
- 6,7-Dimethoxy-1-phenyl-3,4-dihydroisoquinoline (CAS 10172-51-7)
- 2-(6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinolin-1-yl)propane-1,3-diol (CAS 98661-42-8)
- 2,2-Dimethoxy-N-((3-(thiophen-2-yl)-1h-pyrazol-4-yl)methyl)ethan-1-amine (CAS 1142177-02-3)
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Recommended Standards
- 1-(4-Bromophenyl)-3-cyclopropylpropane-1,3-dione (CAS 596117-38-3)
- 1-Bromo-2,3-dimethoxynaphthalene (CAS 222555-02-4)
- 1-(4-Bromo-2-methoxyphenyl)-4-methyl-1H-imidazole (CAS 870838-56-5)
- 1-Bromo-2,7-dimethoxynaphthalene (CAS 4614-11-3)
- 4-Methylbicyclo[2.2.2]octane-1-carboxylic acid (CAS 702-67-0)
- 6-(Cyclohex-1-en-1-yl)pyridin-3-amine (CAS 1159821-24-5)
- (3-Methylpiperidin-1-yl)(piperidin-4-yl)methanone hydrochloride (CAS 1170118-61-2)
- 7-Bromo-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide (CAS 1342745-35-0)
- Bisphenol A polypropylene glycol diether diacrylate (m+n=approx. 3) (stabilized with MEHQ) (CAS 61722-28-9)
- (4-Bromo-3-methylphenyl)methanesulfonyl chloride (CAS 1531565-86-2)
- Methyl 3-bromo-7-chloro-1H-pyrrolo[3,2-b]pyridine-2-carboxylate (CAS 2231675-84-4)
- Dipyrido[3,2-a:3',2'-h]phenazine (CAS 226-49-3)
- ((2R,3R)-2-Methylmorpholin-3-yl)methanol (CAS 744196-64-3)
- D-Lys20-Tirzepatide (CAS CATO-CPTD788914)
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