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Trioctylphosphine

Product Name
Trioctylphosphine
CAS No.
4731-53-7
Chemical Name
Trioctylphosphine
Synonyms
TRIOCTYLPHOSPHINE;P(Oct)3;tl411;nsc102529;HISHICOLIN P-8;Cytop? 380;CYTOP(R) 380;trioctyl-phosphin;trioctylphosphane;tridecylphosphine
CBNumber
CB7421972
Molecular Formula
C24H51P
Formula Weight
370.64
MOL File
4731-53-7.mol
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Trioctylphosphine Property

Melting point:
30°C
Boiling point:
284-291 °C50 mm Hg(lit.)
Density 
0.831 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.468(lit.)
Flash point:
297 °F
storage temp. 
2-8°C, protect from light, stored under nitrogen
form 
Powder or Crystalline Powder
color 
White to off-white
Specific Gravity
0.831
Water Solubility 
Immiscible with water.
Sensitive 
Air Sensitive
Hydrolytic Sensitivity
8: reacts rapidly with moisture, water, protic solvents
BRN 
1776995
InChI
InChI=1S/C24H51P/c1-4-7-10-13-16-19-22-25(23-20-17-14-11-8-5-2)24-21-18-15-12-9-6-3/h4-24H2,1-3H3
InChIKey
RMZAYIKUYWXQPB-UHFFFAOYSA-N
SMILES
P(CCCCCCCC)(CCCCCCCC)CCCCCCCC
CAS DataBase Reference
4731-53-7(CAS DataBase Reference)
EPA Substance Registry System
Phosphine, trioctyl- (4731-53-7)
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Safety

Hazard Codes 
C,Xi
Risk Statements 
34-36/37/38
Safety Statements 
26-36/37/39-45-37/39
RIDADR 
UN 1760 8/PG 2
WGK Germany 
2
RTECS 
SZ3450000
10-13-23
TSCA 
Yes
HazardClass 
8
PackingGroup 
II
HS Code 
29310099
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
117854
Product name
Trioctylphosphine
Purity
technical grade, 90%
Packaging
4x25ml
Price
$140.76
Updated
2025/07/31
Sigma-Aldrich
Product number
117854
Product name
Trioctylphosphine
Purity
technical grade, 90%
Packaging
2.5l
Price
$1880
Updated
2025/07/31
TCI Chemical
Product number
T0503
Product name
Tri-n-octylphosphine
Purity
>85.0%(GC)
Packaging
25mL
Price
$45
Updated
2025/07/31
TCI Chemical
Product number
T0503
Product name
Tri-n-octylphosphine
Purity
>85.0%(GC)
Packaging
100mL
Price
$126
Updated
2025/07/31
Strem Chemicals
Product number
15-6665
Product name
TRI-N-OCTYLPHOSPHINE
Packaging
100g
Price
$95
Updated
2024/03/01
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Trioctylphosphine Chemical Properties,Usage,Production

Description

Trioctylphosphine (also known as Tri-n-octylphosphine, abbreviated as TOP) is a weakly basic organophosphorus compound that can be used in the synthesis of nanomaterials (such as metallic nanoparticles). It also serves as the most popular organophosphorus source in oil-phase synthesis, a stabiliser for certain nanorods, and acts as a solvent in certain chemical processes.

Chemical Properties

Trioctylphosphine abbreviated as TOP, is a colorless liquid with garlic odor, easily oxidized to tri-n-octylphosphine oxide in air.

Uses

Tri-n-octylphosphine is used for coating zinc sulfide shells on cadmium-selenium quantum dot core by successive ionic layer adsorption and reaction method. It acts as a precursor to trioctylphosphine oxide. Further, it is used as a solvent for cadmium and selenium precursors. It also serves as a common reagent in the chemical synthesis of nanoparticles. It acts as a precursor to trioctylphosphine oxide.

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

Trioctylphosphine Preparation Products And Raw materials

Raw materials

Preparation Products

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Trioctylphosphine Suppliers

Hubei Changxinsheng Chemical Co., Ltd
Tel
18971203904
Email
1601302530@qq.com
Country
China
ProdList
492
Advantage
58
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
400-6206333 13167063860
Fax
021-50323701
Email
anhua.mao@aladdin-e.com
Country
China
ProdList
25003
Advantage
65
Shanghai Bojing Chemical Co., Ltd
Tel
021-37199966 13681836088
Fax
021-37597788
Email
bj@bj-chem.com
Country
China
ProdList
463
Advantage
58
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006356688 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
ShangHai DEMO Chemical Co.,Ltd
Tel
400-021-7337 2355568890
Fax
0086-21-50182339
Email
sales@demochem.com
Country
China
ProdList
2572
Advantage
57
Beijing HwrkChemical Technology Co., Ltd
Tel
18515581800 18501085097
Fax
010-89508210
Email
sales.bj@hwrkchemical.com
Country
China
ProdList
9400
Advantage
55
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44801
Advantage
61
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View Lastest Price from Trioctylphosphine manufacturers

Dideu Industries Group Limited
Product
TRI-N-OCTYLPHOSPHINE 4731-53-7
Price
US $1.10/g
Min. Order
1g
Purity
99.9%
Supply Ability
100 Tons Min
Release date
2025-09-12
Shaanxi Didu New Materials Co. Ltd
Product
TRI-N-OCTYLPHOSPHINE 4731-53-7
Price
US $1.50/g
Min. Order
1g
Purity
99.0% Min
Supply Ability
10 Tons
Release date
2025-06-24
Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Trioctylphosphine 4731-53-7
Price
US $75.00-25.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-05-27

4731-53-7, TrioctylphosphineRelated Search:


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  • 4731-53-7
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  • 1812-07-2
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  • Catalysis and Inorganic Chemistry
  • Phosphorus Compounds
  • Mitsunobu Reaction
  • Phosphines (Mitsunobu Reaction)
  • Phosphine Ligands
  • Achiral Phosphine
  • Alkyl Phosphine
  • organophosphorus ligand
  • Phosphine Compounds
  • Catalysis and Inorganic Chemistry
  • Chemical Synthesis
  • Tertiary Phosphines
  • Mitsunobu Reaction
  • Phosphine Ligands
  • Phosphines (Mitsunobu Reaction)
  • Synthetic Organic Chemistry
  • Catalysis and Inorganic Chemistry
  • Phosphine Ligands
  • Phosphorus Compounds