phenylphosphoramidic acid CAS 1445-36-9
| CAS No. | 1445-36-9 |
| Molecular Formula | C6H8NO3P |
| Molecular Weight | 173.11 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.
CATO supplies phenylphosphoramidic acid (CAS 1445-36-9), a certified reference material (molecular formula C6H8NO3P, MW 173.11 g/mol) for analytical method development and quality control.
The molecular framework of phenylphosphoramidic acid (C6H8NO3P) is characterized by an amide group, a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C6H8NO3P |
| Molecular Weight | 173.11 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (Pyridin-4-ylmethyl)phosphonic acid (CAS 80241-43-6)
- 2-(3,5-Difluoro-2-pyridyl)acetic acid (CAS 1000518-01-3)
- (Pyridin-3-ylmethyl)phosphonic acid (CAS 74095-34-4)
- 3,5-Difluoro-n-hydroxybenzamide (CAS 1016775-31-7)
- 2,6-Difluoro-4-nitrobenzoyl chloride (CAS 1803730-46-2)
- Oxodesmosine (CAS 147044-49-3)
- 6-Chloropyrazine-2-carboxamide (CAS 36070-79-8)
- {[5-fluoro-2-(4-methoxypiperidin-1-yl)phenyl]methyl}(methyl)amine (CAS 1096813-24-9)
- N1-Tritylethane-1,2-diamine hydrobromide (CAS 389064-43-1)
- 2-[5-Chloro-2-(pyridin-2-yl)-1h-indol-3-yl]ethan-1-amine hydrochloride (CAS 1049787-82-7)
- 1,1,1-Trifluoro-3-(4-phenylpiperazin-1-yl)propan-2-yl N-phenylcarbamate (CAS 477858-49-4)
- N,N-Dibenzyl-3-{N'-[(1Z)-(4-fluorophenyl)methylidene]hydrazinecarbonyl}propanamide (CAS 331461-04-2)
- Empagliflozin Impurity 315 (CAS CATO-C4X-1065315)
- Semaglutide impurity 66 (CAS CATO-C4X-222666)
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