| CAS No. | 4672-29-1 |
| Molecular Formula | C6H9O9P3 |
| Molecular Weight | 318.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Benzene-1,3,5-triyltris(phosphonic acid) (CAS 4672-29-1) is a high-purity analytical reference standard with the molecular formula C6H9O9P3 and a molecular weight of 318.05 g/mol.
Structurally, Benzene-1,3,5-triyltris(phosphonic acid) (C6H9O9P3) contains a carbohydrate-derived structure, a phosphate ester group. The molecule exhibits a degree of unsaturation (DBE) of 2.5, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 318.05 g/mol, it falls into the moderately-high-molecular-weight range.
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.
| Molecular Formula | C6H9O9P3 |
| Molecular Weight | 318.05 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 1958 |