Dicyclohexyl(mesityl)phosphine CAS 870703-48-3
| CAS No. | 870703-48-3 |
| Molecular Formula | C21H33P |
| Molecular Weight | 316.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Dicyclohexyl(mesityl)phosphine (CAS 870703-48-3) is a high-purity analytical reference standard with the molecular formula C21H33P and a molecular weight of 316.46 g/mol.
Owing to organophosphorus functionality, an aromatic ring system, Dicyclohexyl(mesityl)phosphine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 316.46 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C21H33P |
| Molecular Weight | 316.46 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Dicyclohexyl Standards
- Dicyclohexyl(4-isopropylphenyl)phosphine (CAS 1202865-62-0)
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- Dicyclohexyl furan-3,4-dicarboxylate (CAS 188842-54-8)
- Dicyclohexyl adipate (CAS 849-99-0)
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- Dicyclohexyl(4-methoxyphenyl)phosphane (CAS 40438-63-9)
- Dicyclohexyl Phthalate (CAS 84-61-7)
Recommended Standards
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- Cyclohexyl(2-((2-methylbenzyl)thio)-4,5-dihydro-1H-imidazol-1-yl)methanone (CAS 851800-95-8)
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- Methyl 2-fluoro-2-phenylacetate (CAS 17841-30-4)
- tert-Butyl 3-hydroxybutanoate (CAS 90435-23-7)
- 2,4-Dichloro-N-(4-(phenylcarbamoyl)phenyl)benzamide (CAS 313493-80-0)
- 6-Amino-3-chloropicolinic acid (CAS 1020917-27-4)
- Glipizide Impurity 32 (CAS CATO-C4X-140732)
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