(2R,3R)-(-)-2,3-Bis(diphenylphosphino)bicyclo[2.2.1]hept-5-ene CAS 71042-55-2
| CAS No. | 71042-55-2 |
| Molecular Formula | C31H28P2 |
| Molecular Weight | 462.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (2R,3R)-(-)-2,3-Bis(diphenylphosphino)bicyclo[2.2.1]hept-5-ene.
(2R,3R)-(-)-2,3-Bis(diphenylphosphino)bicyclo[2.2.1]hept-5-ene (CAS 71042-55-2), molecular formula C31H28P2 and molecular weight 462.50 g/mol, is a CATO reference standard with documented purity and traceability.
(2R,3R)-(-)-2,3-Bis(diphenylphosphino)bicyclo[2.2.1]hept-5-ene (C31H28P2) contains organophosphorus functionality, a polycyclic aromatic system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), (2R,3R)-(-)-2,3-Bis(diphenylphosphino)bicyclo[2.2.1]hept-5-ene 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.
Physical & Chemical Properties
| Molecular Formula | C31H28P2 |
| Molecular Weight | 462.50 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
Recommended Standards
- (1R,4S,5S,6S)-5,6-Dibenzhydrylbicyclo[2.2.1]hept-2-ene (CAS 71042-54-1)
- (5R,6R)-5,6-Bis(diphenylphosphanyl)bicyclo[2.2.1]hept-2-ene (CAS 321898-68-4)
- 2,5-Di-t-butyl-1,4-phenylene tetraethyl bis(phosphonate), 99+% Redox shuttle ANL-RS6 (CAS 1350767-15-5)
- 5-(4-(Benzyloxy)phenyl)-N'-((2-hydroxynaphthalen-1-yl)methylene)-1H-pyrazole-3-carbohydrazide (CAS 302918-11-2)
- 2-(Nicotinamido)ethyl 2-(4-chloro-3,5-dimethylphenoxy)acetate hydrochloride (CAS 1179481-40-3)
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