| CAS No. | 1226906-44-0 |
| Molecular Formula | C38H46P2 |
| Molecular Weight | 564.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
racemic-trans-1,2-Bis[di(3,5-dimethylphenyl)phosphinomethyl]cyclobutane (CAS 1226906-44-0) is a high-purity analytical reference standard with the molecular formula C38H46P2 and a molecular weight of 564.72 g/mol.
Owing to organophosphorus functionality, a polycyclic aromatic system, racemic-trans-1,2-Bis[di(3,5-dimethylphenyl)phosphinomethyl]cyclobutane is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 564.72 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).
As a certified reference material (CRM), racemic-trans-1,2-Bis[di(3,5-dimethylphenyl)phosphinomethyl]cyclobutane 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.
| Molecular Formula | C38H46P2 |
| Molecular Weight | 564.72 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |