Phosphine, Bis(2,4,6-trimethylphenyl)- CAS 1732-66-7
| CAS No. | 1732-66-7 |
| Molecular Formula | C18H23P |
| Molecular Weight | 270.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Phosphine, Bis(2,4,6-trimethylphenyl)- is closely related to organophosphorus functionality, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Phosphine, Bis(2,4,6-trimethylphenyl)- (CAS 1732-66-7), molecular formula C18H23P and molecular weight 270.35 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Phosphine, Bis(2,4,6-trimethylphenyl)- (C18H23P) is characterized by organophosphorus functionality, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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.
CATO manufactures Phosphine, Bis(2,4,6-trimethylphenyl)- 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 | C18H23P |
| Molecular Weight | 270.35 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Phosphine Standards
- 34303-18-9 Phosphine oxide, (4-chlorophenyl)diphenyl- DTXSID60457738 (CAS 34303-18-9)
- 855-38-9 Phosphine, tris(4-methoxyphenyl)- Tris(4-methoxyphenyl)phosphine AI3-62578 EINECS 212-723-0 NSC 136458 Phosphine, tris(p-methoxyphenyl)- Trianisylphosphine Tri-p-anisylphosphine Tris(p-anisyl)phosphine tris(p-Methoxyphenyl)phosphine (CAS 855-38-9)
- Phosphine, 1,2-ethanediylbis[[2-(1-methylethyl)phenyl]phenyl-, (1S,1′S)- (CAS 794526-19-5)
- Phosphine (CAS 7803-51-2)
- Phosphine, 1,5-pentanediylbis[bis(3,5-dimethylphenyl)- (CAS 220185-38-6)
- Phosphine, 1,1′-[(1R)-2,2′,3,3′-tetrahydro-3,3,3′,3′,5,5′-hexamethyl-1,1′-spirobi[1H-indene]-7,7′-diyl]bis[1,1-diphenyl- (CAS 2213471-14-6)
- Phosphine, 1,1′-[(1S)-2,2′,3,3′-tetrahydro-3,3,3′,3′,5,5′-hexamethyl-1,1′-spirobi[1H-indene]-7,7′-diyl]bis[1,1-diphenyl- (CAS 2213471-24-8)
- Phosphine oxide, [(4R)-2,2,2′,2′-tetrafluoro[4,4′-bi-1,3-benzodioxole]-5,5′-diyl]bis[diphenyl- (CAS 503538-72-5)
Recommended Standards
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- 5-(Isopropylsulfonyl)-2-(pyrrolidin-1-yl)pyrimidin-4-amine (CAS 175202-04-7)
- Ethyl 4-(2-nitrophenyl)-3-oxobutanoate (CAS 66073-33-4)
- 5-Chloropyridin-3-yl trifluoromethanesulfonate (CAS 150145-19-0)
- tert-Butyl 2-(trans-3-(hydroxymethyl)cyclobutoxy)acetate (CAS 2725910-81-4)
- Methyl 4-(Bromomethyl)-3-(trifluoromethyl)benzoate (CAS 863248-28-6)
- 1-Isobutoxy-4-nitrobenzene (CAS 57027-72-2)
- Ertugliflozin impurity 4 (CAS 1528636-22-7)
- 2-Methyl-2-[3-(trifluoromethyl)phenoxy]propanoic acid (CAS 17432-00-7)
- Ethyl 5-hydroxythiophene-2-carboxylate (CAS 7210-60-8)
- 2-(2-Amino-3-methoxyphenyl)acetonitrile (CAS 1261438-18-9)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
Why CATO?
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