(3-Bromo-2,6-dimethoxypyridin-4-yl)diphenylphosphine oxide CAS 220998-36-7
| CAS No. | 220998-36-7 |
| Molecular Formula | C19H17BrNO3P |
| Molecular Weight | 418.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (3-Bromo-2,6-dimethoxypyridin-4-yl)diphenylphosphine oxide (CAS 220998-36-7), a certified reference material (molecular formula C19H17BrNO3P, MW 418.22 g/mol) for analytical method development and quality control.
Based on its molecular formula C19H17BrNO3P, (3-Bromo-2,6-dimethoxypyridin-4-yl)diphenylphosphine oxide contains a steroid core, an amide group, a phosphonate group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 418.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), (3-Bromo-2,6-dimethoxypyridin-4-yl)diphenylphosphine oxide 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 | C19H17BrNO3P |
| Molecular Weight | 418.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2020 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- Ethyl 5-(4-bromophenyl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 494861-39-1)
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- 1-[4-(Benzyloxy)-3-fluorophenoxy]-2-bromo-4-nitrobenzene (CAS 478039-83-7)
- [4-(4-Chlorophenoxy)-3-nitrophenyl]methyl 3-chlorobenzoate (CAS 339279-25-3)
- Tris(3-(triethoxysilyl)propyl)amine (CAS 18784-74-2)
- 5,6,7,8-Tetrahydrophthalazin-1(2H)-one (CAS 14250-51-2)
- 2,2',2'',2'''-(Porphyrin-5,10,15,20-tetrayl)tetraaniline (CAS 68070-27-9)
- (3-(Pyridin-2-yl)isoxazol-5-yl)methanamine (CAS 543713-45-7)
- 2-Hydroxyphenazine-1-carboxylic acid (CAS 4075-25-6)
- Fluvoxamine impurity 45 (CAS CATO-C4X-195145)
- 2-Chloro-2-methyltetrahydro-2H-pyran (CAS 89357-26-6)
- 2-(Cyclopropylmethoxy)benzoic acid (CAS 136013-76-8)
- (1-phenylpiperidin-3-yl)methanamine (CAS 1232059-87-8)
- Semaglutide impurity 72 (CAS CATO-C4X-222672)
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