(11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin
(11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin (CAS 898830-89-2), molecular formula C52H32O5P, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- S, S-Reetz D-Diphosphonite
- Synonyms
- 1-phenylene)bis-dinaphtho[21-d: 1′2′-f][12]dioxaphosphepin898830-89-2
![(11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F898830-89-2.png&w=3840&q=75)
| Molecular weight | 767.78 |
|---|---|
| Empirical formula | C52H32O5P |
| Optical activity | [α]22/D -85.0°, c = 1 in chloroform |
| Application | This diphosphonite ligand has been successfully employed in asymmetric Rh-catalyzed conjugate addition reactions of arylboronic acids to enones, as well as in asymmetric hydrogenation reactions of β-keto esters.1,2 |
| Melting point | 174-186 °C |
Hazard statements
- H228Flammable solid
- H315Causes skin irritation
- H336May cause drowsiness or dizziness
- H361D
- H373May cause damage to organs through prolonged exposure
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P281Use personal protective equipment as required
| Protective equipment | dust mask type N95 (US), Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3175 4.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 63-11-48/20-67 |
| Safety statements (S) | 36/37 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is (11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin?
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(11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin (CAS 898830-89-2), molecular formula C52H32O5P, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.
What grades of (11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of (11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin?
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(11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin has CAS number 898830-89-2 and molecular formula C52H32O5P. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for (11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of (11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should (11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin be stored?
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Store (11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is (11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin used for?
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(11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin is used in chemical synthesis applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for (11bS, 11′bS)-4,4′-(Oxydi-2,1-phenylene)bis-dinaphtho[2,1-d: 1′, 2′-f][1,3,2]dioxaphosphepin?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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