(2-Methylbenzyl)phosphonic acid CAS 18896-56-5
| CAS No. | 18896-56-5 |
| Molecular Formula | C8H11O3P |
| Molecular Weight | 186.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (2-Methylbenzyl)phosphonic acid (C8H11O3P) contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 186.14 g/mol, it falls into the medium-molecular-weight range. 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).
(2-Methylbenzyl)phosphonic acid (CAS 18896-56-5), molecular formula C8H11O3P and molecular weight 186.14 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), (2-Methylbenzyl)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 | C8H11O3P |
| Molecular Weight | 186.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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.) | 1962 |
Related Methylbenzyl Standards
- (4-Methylbenzyl)phosphonic acid (CAS 13081-74-8)
- (3-Methylbenzyl)phosphonic acid (CAS 18945-65-8)
- 1-(3-methylbenzyl)-1H-pyrazol-4-amine (CAS 1002033-31-9)
- 1-(4-Methylbenzyl)-1h-imidazol-2-amine (CAS 1183576-61-5)
- 1-(3-Methylbenzyl)-1h-imidazol-2-amine (CAS 1184015-94-8)
- 1-(3-Methylbenzyl)-1h-1,2,3-triazol-4-amine (CAS 1509301-65-8)
- 1-(2-Methylbenzyl)-1h-1,2,3-triazol-4-amine (CAS 1512115-61-5)
- 1-(3-Methylbenzyl)-1H-pyrazol-4-ol (CAS 1595751-31-7)
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