4721-17-9 HDPA Hexadecylphosphonic acid n-Hexadecylphosphonic acid CAS 4721-17-9
| CAS No. | 4721-17-9 |
| Molecular Formula | C16H35O3P |
| Molecular Weight | 306.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4721-17-9 HDPA Hexadecylphosphonic acid n-Hexadecylphosphonic acid (CAS 4721-17-9), a certified reference material (molecular formula C16H35O3P, MW 306.42 g/mol) for analytical method development and quality control.
Structurally, 4721-17-9 HDPA Hexadecylphosphonic acid n-Hexadecylphosphonic acid (C16H35O3P) contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of -0.5, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 306.42 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 4721-17-9 HDPA Hexadecylphosphonic acid n-Hexadecylphosphonic 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 | C16H35O3P |
| Molecular Weight | 306.42 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -0.5 |
| CAS Registry Year (est.) | 1958 |
Recommended Standards
- Bis(2-ethylhexyl) phosphite (CAS 3658-48-8)
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Why CATO?
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