(R)-(6,6'-Dimethoxybiphenyl-2,2'-diyl)bis[bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphine] CAS 352655-61-9
| CAS No. | 352655-61-9 |
| Molecular Formula | C44H58O4P2 |
| Molecular Weight | 712.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(R)-(6,6'-Dimethoxybiphenyl-2,2'-diyl)bis[bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphine] (CAS 352655-61-9) is a high-purity analytical reference standard with the molecular formula C44H58O4P2 and a molecular weight of 712.88 g/mol.
The molecular framework of (R)-(6,6'-Dimethoxybiphenyl-2,2'-diyl)bis[bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphine] (C44H58O4P2) is characterized by a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), (R)-(6,6'-Dimethoxybiphenyl-2,2'-diyl)bis[bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphine] 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 | C44H58O4P2 |
| Molecular Weight | 712.88 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 2025 |
Related R Standards
- (S)-(6,6'-Dimethoxybiphenyl-2,2'-diyl)bis{bis[3,5-diisopropyl-4-(dimethylamino)phenyl]phosphine} (CAS 919338-66-2)
- (S)-(6,6'-Dimethoxybiphenyl-2,2'-diyl)bis[bis(3,5-di-tert-butylphenyl)phosphine] (CAS 167709-31-1)
- (R)-(6,6'-Dimethoxybiphenyl-2,2'-diyl)bis(di-2-furylphosphine) (CAS 145214-57-9)
- (S)-(6,6'-Dimethoxybiphenyl-2,2'-diyl)bis(di-2-furylphosphine) (CAS 145214-59-1)
- (R)-(6,6'-Dimethoxybiphenyl-2,2'-diyl)bis[bis(4-methylphenyl)phosphine] (CAS 133545-24-1)
- (S)-(6,6'-Dimethoxybiphenyl-2,2'-diyl)bis[bis(4-methylphenyl)phosphine] (CAS 133545-25-2)
- (S)-(6,6'-Dimethoxybiphenyl-2,2'-diyl)bis(diisopropylphosphine) (CAS 150971-43-0)
- 2',3'-Dimethoxybiphenyl-3-carboxylic acid (CAS 1215206-70-4)
Recommended Standards
- Nalbuphine impurity 32 (CAS CATO-C4X-147532)
- 1,1'-[(1S)-6,6'-Dimethoxy[1,1'-biphenyl]-2,2'-diyl]bis[1,1-bis[3,5-bis(1,1-dimethylethyl)-4-methoxyphenyl]phosphine (CAS 910134-30-4)
- Valsartan Impurity 133 (CAS CATO-C4X-1057133)
- 9-([1,1'-Biphenyl]-3-yl)-9'-([1,1':4',1''-terphenyl]-4-yl)-9H,9'H-3,3'-bicarbazole (CAS 2101561-65-1)
- 3-Nitro-2-((tetrahydro-2H-pyran-4-yl)methoxy)pyridine (CAS 1287218-02-3)
- (E)-2-((4-(Dimethylamino)phenyl)diazenyl)benzoic acid (CAS 74886-84-3)
- (S)-N,1-Dimethylpiperidin-3-amine hydrochloride (CAS 1447672-92-5)
- 2,2,2-Trifluoroethyl 6-(4-(2-fluorophenyl)piperazin-1-yl)nicotinate (CAS 400086-62-6)
- 2-(Dimethylamino)isonicotinohydrazide (CAS 77314-49-9)
- 2-(Methylthio)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1073354-78-5)
- (1R,2S,3R,4S)-3-Amino-7-oxabicyclo[2.2.1]hept-5-ene-2-carboxylic acid hydrochloride (CAS 1820571-66-1)
- ethyl N-[2-(aminomethyl)-1-(4-methoxyphenyl)-3-methylbutyl]carbamate (CAS 1808568-99-1)
- Oseltamivir Impurity 22 (CAS CATO-C4X-172022)
- Semaglutide impurity 67 (CAS CATO-C4X-222667)
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