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CAS RN: 6737-42-4 | Product Number: B1138


Purity: >98.0%(GC)
  • Trimethylenebis(diphenylphosphine)
4   ≥20 
Contact Us ≥20 

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Product Number B1138
Purity / Analysis Method >98.0%(GC)
Molecular Formula / Molecular Weight C__2__7H__2__6P__2 = 412.45  
Physical State (20 deg.C) Solid
Store Under Inert Gas Store under inert gas
Condition to Avoid Air Sensitive
CAS RN 6737-42-4
Reaxys Registry Number 2821785
PubChem Substance ID 87564080
SDBS (AIST Spectral DB) 23201
MDL Number


Appearance White to Light yellow powder to crystaline
Purity(GC) min. 98.0 %
Purity(Iodometric Titration) min. 96.0 %
Melting point 58.0 to 63.0 °C
Properties (reference)
Melting Point 63 °C
Solubility in water Insoluble
Solubility (soluble in) Toluene,Acetone
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws:
EC Number 229-791-2
Transport Information:
HS Number 2931399090
Synthesis of aromatic esters via Pd-catalyzed decarboxylative coupling with bidentate phosphine ligands

Typical procedure: A 10 mL oven-dried Schlenk tube is charged with Pd(OAc)2 (0.005 mmol), 1,3-bis(diphenylphosphino)propane (0.0075 mmol), and potassium ethyl oxalate (0.75 mmol). The tube is evacuated and backfilled with argon. Bromobenzene (0.5 mmol) and 1-methyl-2-pyrrolidone (1.0 mL), are added by syringe at room temperature. The tube is then sealed and the mixture is allowed to stir under 1 atm of argon at 150°C for 24 h (the tube is connected to the Schlenk line which is filled with argon so that CO2 can be released to air).


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