Ethyl (2-aminobenzyl)phosphinate CAS 31238-61-6
| CAS No. | 31238-61-6 |
| Molecular Formula | C9H14NO2P |
| Molecular Weight | 199.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Ethyl (2-aminobenzyl)phosphinate (CAS 31238-61-6), a certified reference material (molecular formula C9H14NO2P, MW 199.19 g/mol) for analytical method development and quality control.
Ethyl (2-aminobenzyl)phosphinate (C9H14NO2P) contains an amide group, organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H14NO2P |
| Molecular Weight | 199.19 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
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Recommended Standards
- Benzenemethanol, 4-amino-3-(dimethylphosphinyl)- (CAS 2886000-74-2)
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- (3-Fluoro-4-(trifluoromethyl)phenyl)methanamine 235106-09-9 3-FLUORO-4-(TRIFLUOROMETHYL)BENZYLAMINE AS06973 (CAS 235106-09-9)
- (2S,4S)-4-Methyl-2-(2-methyl-1-propenyl)tetrahydro-2H-pyran (CAS 5258-10-6)
- 4-(4-Iodo-1H-pyrazol-1-yl)cyclohexanol (CAS 1801330-98-2)
- Ethyl 3-((3-(trifluoromethyl)benzyl)oxy)pyrido[1,2-a]indole-10-carboxylate (CAS 478067-89-9)
- tert-Butyl (5-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)carbamate (CAS 1222522-39-5)
- 4-((Tetrahydro-2h-pyran-2-yl)methoxy)butane-1-sulfonyl chloride (CAS 1339718-90-9)
- Methyl 3-(pyridin-4-yl)-6-(trifluoromethyl)picolinate (CAS 1214367-03-9)
- 2-(3-Methoxyphenoxy)-2-methylpropanoic acid (CAS 140239-94-7)
- Methyl 5-iodo-3-(2,2,2-trifluoroacetamido)-thiophene-2-carboxylate (CAS 942589-44-8)
- Tert-butyl (3-hydroxy-4-methoxyphenyl)carbamate (CAS 224450-48-0)
- Semaglutide impurity 85 (CAS CATO-C4X-222685)
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