Properties are provided as catalog reference data and may be confirmed through supplier documentation when required.
Computed Structure Descriptors
Show calculated structure fields
Heavy atom count
23
H-bond acceptors
3
H-bond donors
0
Rotatable bonds
1
Ring count
5
Aromatic rings
2
Topological polar surface area
21.7 Ų
Computed LogP
4.42
Catalog Facts
Structural features
(R)-N-Dimethyl-[(R)-1,1'-spirobiindane-7,7'-diyl]phosphoramidite, (R)-SIPHOS (CAS 443965-14-8) is a research-use catalog compound with formula C19H20NO2P, molecular weight 325. 34 g/mol, cataloged for catalysis and ligand research.
Sourcing context
Catalog reference for RFQ preparation, supplier confirmation, and research chemical sourcing review.
Research use context
Use this record to verify identity and review the listed 25 mg, 97%, USD 40. Submit an RFQ to confirm current stock, lead time, shipment fit, and final quotation.
Documentation needs
Recorded public safety signal word: Warning. Recorded hazard codes: H302, H315, H319, H335. Request and review the current supplier SDS and COA before purchase, handling, or shipment.
Applications & Classification
Catalysis and Ligand ResearchResearch intermediateCustom synthesis building blockResearch chemical sourcingCustom synthesis and catalog availability reviewCOA, SDS, pricing, and fulfillment workflow
Safety & Handling
Safety and handling reference content is available through documentation requests.
For supplier-issued SDS, request documentation before handling, storage, shipment, or procurement decisions.
Preliminary Safety Reference
For supplier-issued SDS or COA, submit a documentation request.
Other public CAS pages in this catalog. These links support navigation across additional intermediates and do not imply equivalence, availability, or shared use.
MolGraph uses public price and availability evidence as a starting point, then confirms current stock, quotation, COA/SDS, lot specification, lead time, and shipment documentation before final acceptance.
Package and specification
Use the quote panel for visible public options. Additional quantities or specifications can be reviewed by RFQ.
Final lot confirmation
Purity, lot identity, and batch-specific documentation are confirmed before procurement decisions.
Supply documentation
Supplier-issued COA and SDS can be requested before handling, storage, shipment, or procurement decisions.
Quotation review
Final quote depends on quantity, lead time, destination, and supplier confirmation.
Procurement questions
Is CAS 443965-14-8 in stock?
(R)-N-Dimethyl-[(R)-1,1'-spirobiindane-7,7'-diyl]phosphoramidite , (R)-SIPHOS is listed as in-stock / available for research-use sourcing review. Final availability, lot specification, and lead time are confirmed by RFQ.
How is the final price confirmed?
The page shows a public reference price in the quote panel. Submit an RFQ to confirm current price, quantity breaks, lead time, and destination-specific shipping requirements.
Can MolGraph provide COA or SDS for CAS 443965-14-8?
Yes. Supplier-issued COA and SDS can be requested during the RFQ workflow. Lot-specific documents depend on supplier and batch confirmation.
Fragment-like structure rule
No
Lead-like structure rule
No
Drug-like structure rule
Yes
Structure family
phosphine ligand
Precious metal motif
No
Transition metal motif
No
Phosphine ligand motif
Yes
N-heterocycle motif
Yes
Boronic acid motif
No
Computed structure descriptors generated from molecular structure. These are not experimental physical property values, supplier specifications, SDS data, or bioactivity claims.
![(R)-N-Dimethyl-[(R)-1,1'-spirobiindane-7,7'-diyl]phosphoramidite , (R)-SIPHOS molecular structure, CAS 443965-14-8](/structure-images/443965-14-8.png?v=struct-v2)