(<I>S</I>)-(4,4′,6,6′-Tetramethoxybiphenyl-2,2′-diyl)bis(bis(3,5-di-<I>tert</I>- butyl-4-methoxyphenyl)phosphine CAS 1365531-99-2
| CAS No. | 1365531-99-2 |
| Molecular Formula | C76H144O8P2 |
| Molecular Weight | 1247.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 1247.90 g/mol gives (<I>S</I>)-(4,4′,6,6′-Tetramethoxybiphenyl-2,2′-diyl)bis(bis(3,5-di-<I>tert</I>- butyl-4-methoxyphenyl)phosphine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(<I>S</I>)-(4,4′,6,6′-Tetramethoxybiphenyl-2,2′-diyl)bis(bis(3,5-di-<I>tert</I>- butyl-4-methoxyphenyl)phosphine (CAS 1365531-99-2), molecular formula C76H144O8P2 and molecular weight 1247.90 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (<I>S</I>)-(4,4′,6,6′-Tetramethoxybiphenyl-2,2′-diyl)bis(bis(3,5-di-<I>tert</I>- butyl-4-methoxyphenyl)phosphine (C76H144O8P2) is characterized by a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C76H144O8P2 |
| Molecular Weight | 1247.90 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Recommended Standards
- (<I>R</I>)-(4,4′,6,6′-Tetramethoxybiphenyl-2,2′-diyl)bis(bis(3,5-di-<I>tert</I>- butyl-4-methoxyphenyl)phosphine (CAS 1365531-98-1)
- Voclosporin Impurity 2 (CAS CATO-C4X-30652)
- Heptakis-(6-Mercapto-6-deoxy)-β-Cyclodextrin (CAS 160661-60-9)
- Voclosporin Impurity 3 (CAS CATO-C4X-30653)
- 4,5-dihydrobenzo[g][1,3]benzothiazol-2-amine (CAS 401622-74-0)
- 3-Cyano-2-cyclopropoxybenzoic acid (CAS 1243405-94-8)
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- 1417568-91-2 N-[(2-Methyl-1,3-thiazol-4-yl)methyl]piperidine-4-carboxamide hydrochloride (CAS 1417568-91-2)
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- Fibrinopeptide B (human) (CAS 36204-23-6)
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