Diphenyl(pyridin-3-ylmethyl)phosphine oxide CAS 13119-81-8
| CAS No. | 13119-81-8 |
| Molecular Formula | C18H16NOP |
| Molecular Weight | 293.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Diphenyl(pyridin-3-ylmethyl)phosphine 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.
CATO supplies Diphenyl(pyridin-3-ylmethyl)phosphine oxide (CAS 13119-81-8), a certified reference material (molecular formula C18H16NOP, MW 293.30 g/mol) for analytical method development and quality control.
Diphenyl(pyridin-3-ylmethyl)phosphine oxide (C18H16NOP) contains a steroid core, an amide group, organophosphorus functionality, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C18H16NOP |
| Molecular Weight | 293.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 1 |
Related Diphenyl Standards
- Methyl 2-(3,5-diphenyl-1H-1,2,4-triazol-1-yl)acetate (CAS 1171932-97-0)
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- Diphenyl-7H-[1,2,4]triazolo[4,3-b][1,2,4]triazole-6-thiol (CAS 120187-11-3)
- Diphenyl-7h-[1,2,4]triazolo[4,3-b][1,2,4]triazole-3-thiol (CAS 374088-62-7)
- (R)-2,2-Diphenyl-2-(pyrrolidin-3-yl)acetamide (CAS 134002-27-0)
- 4-Butyl-1,2-diphenyl-1H-pyrazol-3(2H)-one (CAS 60002-09-7)
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Recommended Standards
- 3-Amino-6-(4-methanesulfonylphenyl)pyrazine-2-carboxylic acid (CAS 1232423-29-8)
- 2-Fluoradenosine (CAS 146-78-1)
- STK16-IN-1 (CAS 1223001-53-3)
- Ethyl 2-((4-nitrophenyl)amino)thiazole-4-carboxylate (CAS 1620838-06-3)
- 5-Bromo-3H-spiro[benzofuran-2,4'-piperidine] hydrochloride (CAS 89038-93-7)
- 3-Acetyl-6-chloro-2H-chromen-2-one (CAS 53653-66-0)
- 1-(3-Bromo-4-methoxyphenyl)-2-(ethylthio)ethan-1-one (CAS 1157221-98-1)
- Sodium 4-acetoxybenzenesulfonate (CAS 3885-04-9)
- Methyl[(5-methyl-1,3,4-oxadiazol-2-yl)methyl]amine (CAS 887405-27-8)
- Regadenoson Impurity N2 (CAS 79999-39-6)
- 4-(1,3-Dioxaindan-5-yl)-3-(5-bromofuran-2-yl)-1h-pyrazol-5-amine (CAS 1312440-51-9)
- 5-(Difluoromethyl)-2-methoxy-N-methylpyrimidin-4-amine (CAS 2090446-30-1)
- N-(3-Chloro-phenyl)hydroxylamine (CAS 10468-17-4)
- Semaglutide impurity 50 (CAS 2773558-66-8)
Why CATO?
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