Tris(2-ethylhexyl)phosphine oxide CAS 2785-32-2
| CAS No. | 2785-32-2 |
| Molecular Formula | C24H51OP |
| Molecular Weight | 386.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Tris(2-ethylhexyl)phosphine oxide (CAS 2785-32-2), molecular formula C24H51OP and molecular weight 386.63 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Tris(2-ethylhexyl)phosphine oxide (C24H51OP) contains organophosphorus functionality, 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 386.63 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.
CATO manufactures Tris(2-ethylhexyl)phosphine oxide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C24H51OP |
| Molecular Weight | 386.63 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| 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.) | 1957 |
Related Tris Standards
- 2,5-Bis((2-ethylhexyl)oxy)terephthalaldehyde (CAS 288574-72-1)
- Bis(2-ethylhexyl) Isophthalate (CAS 137-89-3)
- 2-Ethylhexyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate (CAS 144429-84-5)
- Bis(2-ethylhexyl) phenyl phosphite (CAS 3164-60-1)
- Bis(2-ethylhexyl) Phthalate-d4 (CAS 93951-87-2)
- Bis(2-ethylhexyl) cyclohex-4-ene-1,2-dicarboxylate (CAS 2915-49-3)
- 1,4-Bis(2-ethylhexyl)-2,5-di(prop-1-yn-1-yl)benzene (CAS 211809-67-5)
- Bis(2-ethylhexyl)adipate-d8 (CAS 1214718-98-5)
Recommended Standards
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Why CATO?
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