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Trioctylphosphine

Trioctylphosphine structure

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

Molecular Weight:: 370.64

MDL Number:: MFCD00015298

MOL File:: 4731-53-7.mol

MSDS File:: SDS

Last updated:2026-01-13 11:24:33

Product description	Number	Pack Size	Price
Trioctylphosphine technical grade, 90%	117854	4x25ml	$140.76
Trioctylphosphine technical grade, 90%	117854	2.5l	$1880
Tri-n-octylphosphine >85.0%(GC)	T0503	25mL	$45
Tri-n-octylphosphine >85.0%(GC)	T0503	100mL	$126
TRI-N-OCTYLPHOSPHINE	15-6665	100g	$95
More product size

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Trioctylphosphine Properties

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.
Hydrolytic Sensitivity	8: reacts rapidly with moisture, water, protic solvents
Sensitive	Air Sensitive
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)
EWG's Food Scores	1
FDA UNII	VE0Y037UCN
EPA Substance Registry System	Phosphine, trioctyl- (4731-53-7)
UNSPSC Code	12352001
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS05

Signal word

Danger

Hazard statements

H314

Precautionary statements

P280-P301+P330+P331-P303+P361+P353-P305+P351+P338

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

RTECS

SZ3450000

10-13-23

TSCA

TSCA listed

HazardClass

PackingGroup

HS Code

29310099

Storage Class

8A - Combustible corrosive hazardous materials

Hazard Classifications

Eye Dam. 1
Skin Corr. 1B

Limited Quantities

1.0 L (0.3 gallons) (liquid) or 1 Kg (2.2 lbs) (solid)

Excepted Quantities

Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)

NFPA 704

	1
3		1

Trioctylphosphine price More Price(31)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	117854	Trioctylphosphine technical grade, 90%	4731-53-7	4x25ml	$140.76	2025-07-31	Buy
Sigma-Aldrich	117854	Trioctylphosphine technical grade, 90%	4731-53-7	2.5l	$1880	2025-07-31	Buy
TCI Chemical	T0503	Tri-n-octylphosphine >85.0%(GC)	4731-53-7	25mL	$45	2025-07-31	Buy
TCI Chemical	T0503	Tri-n-octylphosphine >85.0%(GC)	4731-53-7	100mL	$126	2025-07-31	Buy
Strem Chemicals	15-6665	TRI-N-OCTYLPHOSPHINE	4731-53-7	100g	$95	2024-03-01	Buy

Product number	Packaging	Price	Buy
117854	4x25ml	$140.76	Buy
117854	2.5l	$1880	Buy
T0503	25mL	$45	Buy
T0503	100mL	$126	Buy
15-6665	100g	$95	Buy

Trioctylphosphine Chemical Properties,Uses,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 synthesis

Synthesis of Trioctylphosphine from Trioctylphosphine oxide

Trioctylphosphine Preparation Products And Raw materials

Raw materials

dioctylmagnesium Trioctylphosphine oxide

Preparation Products

trioctylphosphine sulphide

Trioctylphosphine Suppliers

Global( 253)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Weifang Wehibest Supply Chain Co.,Ltd	+8613583620690	hotspotbiotech@163.com	China	926	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-13131129325	sales1@chuanghaibio.com	China	5242	58
Hebei Zhuanglai Chemical Trading Co.,Ltd	+8613343047651	admin@zlchemi.com	China	3692	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718; +8613336195806	sales@capot.com	China	29735	60
Shanghai Daken Advanced Materials Co.,Ltd	+86-2158073036	info@dakenam.com	China	13799	58
Shanghai Bojing Chemical Co.,Ltd.	+86-86-02137122233 +8613795318958	bj1@bj-chem.com	China	299	55
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21597	55
Shanxi Naipu Import and Export Co.,Ltd	+86-13734021967 +8613734021967	kaia@neputrading.com	China	1001	58
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29831	58
SHANDONG ZHI SHANG CHEMICAL CO.LTD	+86 18953170293	sales@sdzschem.com	China	1497	58

Supplier	Advantage
Weifang Wehibest Supply Chain Co.,Ltd	58
Hebei Chuanghai Biotechnology Co,.LTD	58
Hebei Zhuanglai Chemical Trading Co.,Ltd	58
Capot Chemical Co.,Ltd.	60
Shanghai Daken Advanced Materials Co.,Ltd	58
Shanghai Bojing Chemical Co.,Ltd.	55
Henan Tianfu Chemical Co.,Ltd.	55
Shanxi Naipu Import and Export Co.,Ltd	58
career henan chemical co	58
SHANDONG ZHI SHANG CHEMICAL CO.LTD	58

Tri-n-octylphosphine: Versatile Reagent in Nanoparticle Synthesis and Catalysis
Tri-n-octylphosphine acts as solvent, stabilizer, and phosphorus source for synthesizing CdS nanorods and nickel phosphide cat....
Jul 10，2025

View Lastest Price from Trioctylphosphine manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-12-12	Trioctylphosphine 4731-53-7	US $1.00-0.00 / KG	1KG	99%	20 tons	Shaanxi Dideu Medichem Co. Ltd
2025-06-20	TRI-N-OCTYLPHOSPHINE 4731-53-7	US $0.00-0.00 / kg	1kg	99%	100tons	Hebei Yanxi Chemical Co., Ltd.
2025-05-26	Trioctylphosphine 4731-53-7	US $1.70 / kg	10kg	92%	10000kg	Hebei Chuanghai Biotechnology Co,.LTD

Trioctylphosphine
4731-53-7
US $1.00-0.00 / KG
99%
Shaanxi Dideu Medichem Co. Ltd

TRI-N-OCTYLPHOSPHINE
4731-53-7
US $0.00-0.00 / kg
99%
Hebei Yanxi Chemical Co., Ltd.

Trioctylphosphine
4731-53-7
US $1.70 / kg
92%
Hebei Chuanghai Biotechnology Co,.LTD

Trioctylphosphine Spectrum

TRI-N-OCTYLPHOSPHINE(4731-53-7)MS TRI-N-OCTYLPHOSPHINE(4731-53-7)¹HNMR TRI-N-OCTYLPHOSPHINE(4731-53-7)¹³CNMR TRI-N-OCTYLPHOSPHINE(4731-53-7)IR1

4731-53-7(Trioctylphosphine)Related Search:

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Copper(II) chloride PHOSPHOROUS ACID TRI-O-CRESYL ESTER MOLYBDENUM(V) CHLORIDE Tri-tert-butylphosphine Fluorotributyltin

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AURORA KA-1151 TRIS(1H,1H,2H,2H-PERFLUOROOCTYL)PHOSPINE

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CYTOP(R) 380 TRIOCTYLPHOSPHINE TRI-N-OCTYLPHOSPHINE nsc102529 tl411 trioctyl-phosphin TRIOCTYLPHOSPHINE (CYTOP 380) CYTEC QUALITY TRIOCTYLPHOSPHINE, TECH., 90% Tri-n-octylphosphine,tech.90% Cytop? 380 Tri-n-octylphosphine,min.97%TOP HISHICOLIN P-8 TRI-N-OCTYLPHOSPHINE (TOP) TRIOCTYLPHOSPHINE (TOCP) Tri-n-octylphosphine, tech., 90% Tri-n-octylphosphine, Technical Grade, 90% Tri-n-octylphosphine, TOP,min. 97% Trisoctylphosphine trioctylphosphane Trioctylphosphine, technical grade, AcroSeal, 90% Tri-n-Octylphophine Trioctylphosphine, 90%, technical grade, AcroSeal P(Oct)3 Phosphine, trioctyl- Trioctylphosphine technical grade, 90% Tri-n-octylphosphine > tridecylphosphine ri-n-octylphosphine Trioctylphosphine, 90%, technical grade, AcroSeal&trade TRI-N-OCTRI-N-OCTYLPHOSPHINETYLPHOSPHINE Trialkylphosphine Trioctylphosphine(TOP) 4731-53-7 473-53-7 1812-07-2 C8H173P C24H51P CH3CH273P 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