(4-Methoxybenzyl)phosphonic acid CAS 40299-61-4
| CAS No. | 40299-61-4 |
| Molecular Formula | C8H11O4P |
| Molecular Weight | 202.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 202.14 g/mol gives (4-Methoxybenzyl)phosphonic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(4-Methoxybenzyl)phosphonic acid (CAS 40299-61-4), molecular formula C8H11O4P and molecular weight 202.14 g/mol, is a CATO reference standard with documented purity and traceability.
(4-Methoxybenzyl)phosphonic acid (C8H11O4P) contains a phosphate ester group, a carboxylic acid 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. 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.
As a certified reference material (CRM), (4-Methoxybenzyl)phosphonic acid 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.
Physical & Chemical Properties
| Molecular Formula | C8H11O4P |
| Molecular Weight | 202.14 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1968 |
Related Methoxybenzyl Standards
- 2-(4-Methoxybenzyl)-5-methylfuran (CAS 113386-12-2)
- 1-(4-Methoxybenzyl)-1H-pyrazol-3-amine (CAS 1003011-46-8)
- 1-(3-Methoxybenzyl)-1h-pyrazol-5-amine (CAS 1052552-26-7)
- 1-(4-Methoxybenzyl)-1H-pyrazol-4-amine (CAS 1152867-10-1)
- 1-(2-Methoxybenzyl)-1H-imidazol-2-amine (CAS 1183141-57-2)
- 1-(3-Methoxybenzyl)-1h-imidazol-2-amine (CAS 1184806-51-6)
- 1-(2-Methoxybenzyl)-1H-pyrazol-5-amine (CAS 3528-46-9)
- 1-(3-Methoxybenzyl)-1h-pyrazol-4-amine (CAS 957261-62-0)
Recommended Standards
- 3-(Trifluoromethyl)pyrazolo[1,5-a]pyrimidin-6-amine (CAS 1713160-74-7)
- 3-(5-Fluoro-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)propanoic acid (CAS 6214-60-4)
- 7-(Trifluoromethyl)-1H-imidazo[4,5-c]pyridin-4-amine (CAS 1638765-07-7)
- 5-(Dimethylphosphoryl)-3-methylfuran-2-carboxylic acid (CAS 2648962-63-2)
- N-((6,7,8,9-Tetrahydro-5H-imidazo[1,2-d][1,4]diazepin-3-yl)methyl)methanesulfonamide (CAS 1422141-50-1)
- 8-Bromo-7-methyl-6-nitroimidazo[1,2-a]pyridine (CAS 2079884-46-9)
- 4-Bromo-2,6-dichloronicotinic acid (CAS 2167444-51-9)
- N-(2,4-difluorophenyl)pivalamide (CAS 124704-01-4)
- 2,3-Dibromo-3-(4-methoxyphenyl)propanoic acid (CAS 77820-32-7)
- 1-(6-Chloropyridin-3-yl)-N-methylmethanamine dihydrochloride (CAS 1158371-77-7)
- 4-Bromo-2-chloro-6-(chloromethyl)pyridine (CAS 1393554-93-2)
- Methyl 1-Bromocyclohexanecarboxylate (CAS 3196-23-4)
- 1-(Methylsulfanyl)propan-2-ol (CAS 6943-87-9)
- Cyclopeptide-5 (CAS 197172-76-2)
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