Diethyl [1-(N-phthalimido)methyl]phosphonate, 97% CAS 33512-26-4
| CAS No. | 33512-26-4 |
| Molecular Formula | C13H16NO5P |
| Molecular Weight | 297.24 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 Diethyl [1-(N-phthalimido)methyl]phosphonate, 97% (CAS 33512-26-4), a certified reference material (molecular formula C13H16NO5P, MW 297.24 g/mol) for analytical method development and quality control.
Diethyl [1-(N-phthalimido)methyl]phosphonate, 97% (C13H16NO5P) contains a nitrogen-containing heterocyclic scaffold, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C13H16NO5P |
| Molecular Weight | 297.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 1 |
Related Diethyl Standards
- Diethyl 3-methyl-9-oxo-3-azabicyclo[3.3.1]Nonane-1,5-dicarboxylate (CAS 92727-60-1)
- Diethyl 2-amino-4,5,6,7-tetrahydrobenzo-[b]thiophene-3,5-dicarboxylate (CAS 1029689-49-3)
- Diethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3,4-dicarboxylate (CAS 175599-88-9)
- Diethyl (2,4-dichlorobenzyl)phosphonate (CAS 57277-24-4)
- Diethyl (2,6-dichlorobenzyl)phosphonate (CAS 63909-56-8)
- Diethyl [(2,5-dichlorophenyl)methyl]phosphonate (CAS 206008-37-9)
- Diethyl 3,3-dimethyl-4-(pyrrolidin-1-yl)cyclobutane-1,2-dicarboxylate (CAS 477725-46-5)
- Diethyl 2-(((2-chlorophenyl)amino)methylene)malonate (CAS 19056-78-1)
Recommended Standards
- 8-Sulfoquinoline-2,4-dicarboxylic acid (CAS 200506-10-1)
- Methyl 3-amino-4,6-dinitrobenzo[b]thiophene-2-carboxylate (CAS 299920-65-3)
- 1-(3-Cyano-4-fluorophenyl)-5-(furan-2-yl)-1H-pyrazole-3-carboxylic acid (CAS 503614-46-8)
- Isoxathion-Oxon (CAS 32306-29-9)
- 2-(Aminomethyl)-4-methoxyphenol hydrochloride (CAS 1081777-51-6)
- 6-Azaspiro[3.4]Octane-8-carboxylic acid (CAS 1537744-20-9)
- 2-(2,4-Dibromo-6-formylphenoxy)acetic acid (CAS 21512-82-3)
- 3-(4-Fluorophenyl)-1h-pyrazole-5-carbohydrazide (CAS 763111-29-1)
- N-(6-Hydrazino-6-oxohexyl)acetamide (CAS 24061-84-5)
- 7-Ethoxy-6-nitro-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 105412-04-2)
- 2-Methoxy-6-(((4-methoxyphenyl)amino)methyl)phenol (CAS 763132-95-2)
- 3-tert-Butyl-2-hydroxy-5-methoxybenzaldehyde (CAS 123013-13-8)
- (1R,4S)-rel-4-[[2-Amino-6-chloro-5-[(4-chlorophenyl)azo]-4-pyrimidinyl]amino]-2-cyclopentene-1-methanol (CAS 122624-75-3)
- Insulin Lispro (CAS 133107-64-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com