Bis(2-isopropoxyphenyl)phosphine
Bis(2-isopropoxyphenyl)phosphine (CAS 1202864-41-2) is an organophosphorus compound with the molecular formula C18H23O2P and a molecular weight of 302.35 g/mol. It is a secondary diarylphosphine bearing two ortho-isopropoxy-substituted aryl groups and a reactive P-H bond, supplied by Tech Serve Solutions as a research-grade solid of 97% assay. It serves principally as a phosphine ligand and a building block for preparing tertiary phosphines used in transition-metal catalysis and fine-chemical synthesis.
- Synonyms
- Bis(2-isopropoxyphenyl)phosphineBis(2-isopropoxyphenyl)phosphaneBis[2-(propan-2-yloxy)phenyl]phosphineBis(2-isopropoxyphenyl)phosphine, CAS 1202864-41-2

Phosphine ligand for metal catalysis
Used as a phosphorus(III) ligand and ligand precursor for transition-metal complexes. The ortho-alkoxy aryl substituents and P-H functionality make it a useful starting point for designing supporting ligands in homogeneous catalysis.
Precursor to tertiary phosphines
The reactive P-H bond of this secondary phosphine allows further functionalisation to access more elaborate tertiary phosphine ligands and organophosphorus structures for research programmes.
Building block in chemical synthesis
Applied as a specialised intermediate in organophosphorus and organometallic synthesis, where a defined diarylphosphine scaffold is required for downstream coupling, coordination or derivatisation chemistry.
Research and method development
Employed at laboratory scale in catalysis research, ligand screening and exploratory synthesis where consistent identity and purity are important for reproducible results.
| Molecular weight | 302.35 |
|---|---|
| Empirical formula | C18H23O2P |
| Assay | 97% |
| Melting point | 71-75 °C |

Hazard statements
- H228Flammable solid
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
| Transport (UN / ADR) | UN 1325 4.1 / PGII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11 |
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-isopropoxyphenyl)phosphine used for?
+
It is used mainly as a phosphine ligand and ligand precursor in transition-metal catalysis, and as an organophosphorus building block. Its secondary P-H bond allows conversion into tertiary phosphines and related structures for fine-chemical and research synthesis.
What is the CAS number and molecular formula of Bis(2-isopropoxyphenyl)phosphine?
+
The CAS number is 1202864-41-2 and the molecular formula is C18H23O2P, corresponding to a molecular weight of 302.35 g/mol. It is a solid with a reported melting point of 71-75 °C.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Bis(2-isopropoxyphenyl)phosphine as a research-grade material with an assay of 97%. We do not represent it as USP, BP or EP pharmacopoeial grade; a certificate of analysis and current specification are provided with each lot on request.
What are the safety and handling requirements for Bis(2-isopropoxyphenyl)phosphine?
+
It is classified as a flammable solid (GHS02, signal word Warning, H228; EU class F, R11). Keep away from heat, sparks, open flames and other ignition sources (P210), handle in a well-ventilated area with appropriate personal protective equipment, and follow the Safety Data Sheet. The German Water Hazard Class is WGK 3.
How is Bis(2-isopropoxyphenyl)phosphine packed, shipped and exported?
+
It is packed in sealed containers suited to a flammable solid and labelled per GHS. For transport it is assigned UN 1325, Class 4.1, Packing Group II, and is shipped as dangerous goods under applicable ADR/IATA/IMDG rules. Tech Serve Solutions exports worldwide with full documentation and a Safety Data Sheet.
How do I request a sample or quote?
+
Contact Tech Serve Solutions with your required quantity, purity and destination, and our team will respond with availability, lead time, packing options and export documentation. Quote the product name and CAS 1202864-41-2 to speed up your enquiry.
▶ Related products

Benzeneruthenium(II) chloride dimer
Ru2(C6H6)2Cl4
Catalysis & Inorganic
Benzoylferrocene
C17H14FeO
Catalysis & Inorganic
Benzyldiphenylphosphine
C6H5CH2P(C6H5)2
Catalysis & Inorganic
Beryllium
Be
Catalysis & Inorganic
Beryllium oxide
BeO
Catalysis & Inorganic![Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer — chemical structure, CAS 12257-42-0; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F12257-42-0.png&w=3840&q=75)
Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer
Catalysis & Inorganic
![Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo — chemical structure, CAS 1228149-03-8; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1228149-03-8.png&w=3840&q=75)
Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo
1-d:1′
Catalysis & Inorganic![Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride (C16H20ClN3Ni) — chemical structure, CAS 1033772-47-2; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1033772-47-2.png&w=3840&q=75)
Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride
C16H20ClN3Ni
Catalysis & Inorganic▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis