Bis(2-methoxyphenyl)phosphine oxide CAS 71360-04-8
| CAS No. | 71360-04-8 |
| Molecular Formula | C14H14O3P |
| Molecular Weight | 261.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Bis(2-methoxyphenyl)phosphine oxide (CAS 71360-04-8), molecular formula C14H14O3P and molecular weight 261.23 g/mol, is a CATO reference standard with documented purity and traceability.
Bis(2-methoxyphenyl)phosphine oxide (C14H14O3P) contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Bis(2-methoxyphenyl)phosphine oxide 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 | C14H14O3P |
| Molecular Weight | 261.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
Related Bis Standards
- 1-(4-Methoxyphenyl)-2-(3-nitro-1h-pyrazol-1-yl)ethan-1-one (CAS 1006569-70-5)
- 1-(4-Methoxyphenyl)-2-(4-nitro-1h-pyrazol-1-yl)ethan-1-one (CAS 1006571-64-7)
- 3-[(4-methoxyphenyl)methyl]-5-nitro-imidazole-4-carbaldehyde (CAS 666749-58-2)
- 6-Acetyl-2-(3-methoxyphenyl)-1,2,4-triazine-3,5(2H,4H)-dione (CAS 338400-96-7)
- 6-Acetyl-2-(4-methoxyphenyl)-1,2,4-triazine-3,5(2H,4H)-dione (CAS 477854-31-2)
- Methyl 5-(((3-methoxyphenyl)amino)methyl)furan-2-carboxylate (CAS 1152697-30-7)
- 4-(4-Methoxyphenyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-carboxylic acid (CAS 423120-08-5)
- Ethyl 3-(2-methoxyphenyl)-5-methylisoxazole-4-carboxylate (CAS 495417-30-6)
Recommended Standards
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- 7-Cyclopropyl-1-methyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-5-carboxylic acid (CAS 937657-66-4)
- DHMeQ racemate (CAS 287194-38-1)
- Rel-(3R,5R)-3,5-dimethylpiperidine (CAS 32452-46-3)
- 2-Chloro-6-(3-pyrrolidinylmethoxy)pyrazinehydrochloride (CAS 1219976-69-8)
- (R)-tert-Butyl (1-(benzofuran-2-yl)-2-hydroxyethyl)carbamate (CAS 1398507-96-4)
- 6-Amino-5-chloropicolinonitrile (CAS 1805511-71-0)
- 2-Amino-4-hydroxypentanoic acid (CAS 3209-39-0)
- 2-(3-Phenylallylidene)malonyl dichloride (CAS 70680-01-2)
- (1R,2S,5S)-3-(3-Nitropyridin-2-yl)-3-azabicyclo[3.1.0]hexane-2-carboxylic acid (CAS 956270-06-7)
- 5-Bromo-7-fluoroquinoline (CAS 1239462-97-5)
- 2,2',3-Tribromodiphenyl Ether (CAS 147217-74-1)
- C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 127869-51-6)
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