Bis(2-diphenylphosphinoethyl)phenylphosphine
Bis(2-diphenylphosphinoethyl)phenylphosphine (CAS 23582-02-7) is a tridentate organophosphorus ligand with the formula C6H5P[CH2CH2P(C6H5)2]2 and a molar mass of 534.55 g/mol. Also known as Triphos, this crystalline triphosphine chelates transition metals through three phosphorus donor atoms, making it valued in coordination chemistry and homogeneous catalysis. Tech Serve Solutions supplies it as a research-grade reagent (97% assay) to laboratories and synthesis groups worldwide.
- IUPAC
- Phenylbis(diphenylphosphinoethyl)phosphine,Triphos
- Synonyms
- Bis(2-diphenylphosphinoethyl)phenylphosphinePhenylbis(diphenylphosphinoethyl)phosphineTriphosCAS 23582-02-7EC 245-753-8
![Bis(2-diphenylphosphinoethyl)phenylphosphine (C6H5P[CH2CH2P(C6H5)2]2) — chemical structure, CAS 23582-02-7; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F23582-02-7.png&w=3840&q=75)
Tridentate ligand for transition-metal complexes
The three phosphorus donor atoms allow this triphosphine to chelate a single metal centre, forming stable, well-defined coordination complexes. It is widely used in organometallic and coordination chemistry research.
Homogeneous catalysis
Phosphine ligands of this type are employed to construct soluble transition-metal catalysts. The defined geometry and electron-rich phosphorus centres help tune metal reactivity and selectivity.
Organometallic and academic research
Supplied as a high-purity reagent, it serves laboratories studying metal-phosphine bonding, ligand design and catalyst development. It is suited to fundamental and exploratory synthetic work.
Synthesis of designed catalyst systems
As a building block in chemical synthesis, the ligand is reacted with metal precursors to prepare tailored complexes for further study. It is handled under standard inert-atmosphere precautions appropriate to phosphines.
| Molecular weight | 534.55 |
|---|---|
| Linear formula | C6H5P[CH2CH2P(C6H5)2]2 |
| Assay | 97% |
| Melting point | 130-132 °C(lit.) |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 22-26-28-36/37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets 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 Bis(2-diphenylphosphinoethyl)phenylphosphine used for?
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It is used principally as a tridentate phosphine ligand in coordination chemistry and homogeneous catalysis, chelating transition metals through its three phosphorus donor atoms to form stable, well-defined complexes for research and catalyst development.
What is the CAS number and molecular formula of Bis(2-diphenylphosphinoethyl)phenylphosphine?
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The CAS number is 23582-02-7 and the molecular formula is C6H5P[CH2CH2P(C6H5)2]2, with a molecular weight of 534.55 g/mol. Its EC number is 245-753-8 and its MDL number is MFCD00003048.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this material as a research-grade reagent with a typical assay of 97%. It is offered for laboratory and research use; we do not represent it as USP, BP or EP pharmacopoeial grade.
What are the safety and handling requirements?
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Classified under GHS07 with the signal word Warning, it causes skin irritation (H315), serious eye irritation (H319) and may cause respiratory irritation (H335). Use a dust mask (type N95), eye shields and gloves, avoid dust formation, and consult the SDS before handling. WGK water-hazard class is 3.
How is Bis(2-diphenylphosphinoethyl)phenylphosphine packed, shipped and exported?
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It is packed in suitable sealed laboratory containers with full labelling and documentation. For transport it is classified UN 2811, Class 6.1, Packing Group III; we ship and export worldwide in compliance with applicable dangerous-goods regulations.
How do I request a sample or quote?
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Contact Tech Serve Solutions with your required quantity and specification, and our team will respond with availability, lead time and a formal quotation. Samples can be arranged subject to availability and applicable shipping requirements.
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