MilliporeSigma
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00676

Sigma-Aldrich

Trioctylphosphine oxide

for extraction analysis, ≥98.5%

Synonym(s):
(Oct)3PO, TOPO®
Linear Formula:
[CH3(CH2)7]3PO
CAS Number:
Molecular Weight:
386.63
Beilstein:
1796648
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

grade

for extraction analysis

Quality Level

assay

≥98.5% (GC)
≥98.5%

reaction suitability

reaction type: Buchwald-Hartwig Cross Coupling Reaction
reaction type: Heck Reaction
reaction type: Hiyama Coupling
reaction type: Negishi Coupling
reaction type: Sonogashira Coupling
reaction type: Stille Coupling
reaction type: Suzuki-Miyaura Coupling
reagent type: ligand

impurities

≤0.2% free acid (as H3PO4)
≤0.5% water

bp

201-202 °C/2 mmHg (lit.)

mp

50-52 °C (lit.)
52-55 °C

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤10 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤10 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

functional group

phosphine

SMILES string

CCCCCCCCP(=O)(CCCCCCCC)CCCCCCCC

InChI

1S/C24H51OP/c1-4-7-10-13-16-19-22-26(25,23-20-17-14-11-8-5-2)24-21-18-15-12-9-6-3/h4-24H2,1-3H3

InChI key

ZMBHCYHQLYEYDV-UHFFFAOYSA-N

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Application

Catalyst in:
  • Preparation of tetradentate planar-chiral hydroxy-substituted ferrocenecarboxaldimine Schiff base ligands
  • Reactions of allyl esters with hydrosilanes
  • Asymmetric cyanosilylation of aldehydes
  • Preparation of chlorothiol formates from thiols and phosgene

Legal Information

TOPO is a registered trademark of Life Technologies

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Aquatic Chronic 3 - Eye Dam. 1 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

446.0 °F - closed cup

Flash Point(C)

230 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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