dimethyl (cyanomethyl)phosphonate CAS 21658-92-4
| CAS No. | 21658-92-4 |
| Molecular Formula | C4H8NO3P |
| Molecular Weight | 149.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C4H8NO3P, dimethyl (cyanomethyl)phosphonate contains an amide group, a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 149.08 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
dimethyl (cyanomethyl)phosphonate (CAS 21658-92-4), molecular formula C4H8NO3P and molecular weight 149.08 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C4H8NO3P |
| Molecular Weight | 149.08 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.5 |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- Chlorpyrifos Impurity 1 (CAS 167100-86-9)
- 2-(Difluoromethyl)-4-Methyl-1,3-Oxazol-5(2H)-One (CAS 154140-57-5)
- 2-((Benzyloxy)methyl)-3-methylbutane-1-sulfonyl chloride (CAS 1481497-18-0)
- 4,6-dichloro-N-(2,2,2-trifluoroethyl)pyrimidin-2-amine (CAS 1208109-04-9)
- 2-[(1-Methylpyrazol-4-yl)methylidene]propanedioic acid (CAS 1820736-56-8)
- N-(2-Methylphenyl)-2-piperidinecarboxamidehydrochloride (CAS 1246172-48-4)
- 2-Isopropyl-3-methylbutanenitrile (CAS 62391-96-2)
- 4-Chloro-5-methyl-isoxazole-3-carboxylic acid methyl ester (CAS 1855898-97-3)
- Brexpiprazole impurity 124 (CAS 146121-18-8)
- Tamsulosin Impurity 73 (CAS CATO-C4X-118773)
- 3-Heptylpyrrole (CAS 878-11-5)
- D-Tyr1-Tirzepatide (CAS CATO-CPTD788928)
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