Cis-[1,2-bis(diphenylphosphino)ethane](2-methylphenyl)nickel(ii) chloride CAS 1256262-67-5
| CAS No. | 1256262-67-5 |
| Molecular Formula | C33H31ClNiP2 |
| Molecular Weight | 583.69 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.
Cis-[1,2-bis(diphenylphosphino)ethane](2-methylphenyl)nickel(ii) chloride (CAS 1256262-67-5) is a high-purity analytical reference standard with the molecular formula C33H31ClNiP2 and a molecular weight of 583.69 g/mol.
Owing to organophosphorus functionality, chlorine substitution, a polycyclic aromatic system, Cis-[1,2-bis(diphenylphosphino)ethane](2-methylphenyl)nickel(ii) chloride is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 583.69 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C33H31ClNiP2 |
| Molecular Weight | 583.69 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
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