1,15-Bis(diphenylphosphino)-7,8,9,10-tetrahydro-6H-dibenzo[b,d][1,6]dioxacycloundecine CAS 905714-09-2
| CAS No. | 905714-09-2 |
| Molecular Formula | C41H36O2P2 |
| Molecular Weight | 622.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,15-Bis(diphenylphosphino)-7,8,9,10-tetrahydro-6H-dibenzo[b,d][1,6]dioxacycloundecine (CAS 905714-09-2), molecular formula C41H36O2P2 and molecular weight 622.67 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, 1,15-Bis(diphenylphosphino)-7,8,9,10-tetrahydro-6H-dibenzo[b,d][1,6]dioxacycloundecine is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 622.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C41H36O2P2 |
| Molecular Weight | 622.67 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 24.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Bis Standards
- 2-(Diphenylphosphino)-N-[(1S,2R)-2-[(R)-(4-methylphenyl)sulfinyl]-1,2-iphenylethyl]benzamide (CAS 1570510-59-6)
- 2-(Diphenylphosphino)-N-[(1S,2R)-2-[(R)-(2-methylphenyl)sulfinyl] -1,2-diphenylethyl]-benzamide (CAS 1570510-63-2)
- 3-(Diphenylphosphino)-2'-((R)-hydroxy(2-(trimethylsilyl)phenyl)methyl)-[1,1'-binaphthalen]-2-ol (CAS 1661883-75-5)
- 4-(Bis(2-(diphenylphosphino)ethyl)carbamoyl)phthalic acid (CAS 77462-00-1)
- 2-(Diphenylphosphino)-N-[(8α,9S)-6'-methoxycinchonan-9-yl]benzamide (CAS 1630973-03-3)
- 2-(Diphenylphosphino)-N-[(9S)-6′-methoxycinchonan-9-yl]benzamide (CAS 2271134-66-6)
- 3-(Diphenylphosphino)-9-[4-(diphenylphosphino)phenyl]-9H-carbazole (CAS 1226860-67-8)
- 5,5’-Bis(diphenylphosphino)-4,4’-bi-1,3-benzodioxole (CAS 244261-75-4)
Recommended Standards
- [(15aS)-7,8,9,10-Tetrahydro-6H-dibenzo[b,d][1,6]dioxacycloundecin-1,15-diyl]bis[diphenylphosphine] (CAS 486429-95-2)
- BINAP (CAS 76189-55-4)
- (S)-(-)-2,2’-Bis(diphenylphosphino)-1,1’-binaphthalene (CAS 76189-56-5)
- Brexpiprazole Impurity 33 (CAS 98327-87-8)
- 2-(5-Methylimidazo[1,2-a]pyridin-3-yl)acetic acid (CAS 101820-57-9)
- 6,7-Dimethoxy-2-((3-methylthiophen-2-yl)methyl)-1,2,3,4-tetrahydroisoquinoline (CAS 5259-43-8)
- N,N-Diethyl-2-(piperazin-1-yl)-5,6,7,8-tetrahydroquinazolin-4-amine (CAS 76781-40-3)
- Dihydrobis(tricyclohexylphosphine)platinum (CAS 824391-83-5)
- O-Methyl-N-(pyridin-3-ylmethyl)hydroxylamine (CAS 120739-78-8)
- N-(2,4-dichloro-5-methoxyphenyl)-3-(4-nitrophenoxy)thiophene-2-carboxamide (CAS 339015-25-7)
- N4-(4-Bromophenyl)-N2-(2-hydroxyethyl)-L-asparagine (CAS 85476-54-6)
- 4-[(2,6-Dichloro-4-formylphenoxy)methyl]benzoic acid (CAS 428482-45-5)
- 6,7-Dichlorophthalazine-5,8-dione (CAS 102072-85-5)
- Semaglutide impurity 276 (CAS CATO-C4X-2226276)
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