Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Trioctylphosphine
Price: Check
Purity: 90.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Trioctylphosphine
Price: ￥228.0/25ml ￥728.0/100ml ￥88.0/5ml
Purity: 90.0%
Stocking Period: 3 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: tri-n-Octylphosphine
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: TRI-N-OCTYLPHOSPHINE
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

4731-53-7

4731-53-7 structure

4731-53-7 structure

Name: Trioctylphosphine
Chemical Name: Tri-N-Octylphosphine
CAS Number: 4731-53-7
Molecular Formula: C₂₄H₅₁P
Molecular Weight: 370.635
Catalog: Organic raw materials Organic phosphine compound
Create Date: 2018-05-31 08:00:00
Modify Date: 2025-08-23 14:05:37

Name	Tri-N-Octylphosphine
Synonyms	Tri-n-octylphosphine MFCD00015298 Trioctylphosphine Phosphine, trioctyl- trioctyl phosphine EINECS 225-234-2 trioctylphosphane P(Oct)3 TOP

Density	0.831 g/mL at 25 °C(lit.)
Boiling Point	445.0±14.0 °C at 760 mmHg
Melting Point	-60ºC
Molecular Formula	C₂₄H₅₁P
Molecular Weight	370.635
Flash Point	236.0±26.4 °C
Exact Mass	370.372833
PSA	13.59000
LogP	11.98
Vapour Pressure	0.0±1.0 mmHg at 25°C
Index of Refraction	n20/D 1.468(lit.)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: SZ3450000

CHEMICAL NAME :: Phosphine, trioctyl-

CAS REGISTRY NUMBER :: 4731-53-7

BEILSTEIN REFERENCE NO. :: 1776995

LAST UPDATED :: 199701

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C24-H51-P

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LC - Lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >1600 mg/m3/10M

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NDRC** National Defense Research Committee, Office of Scientific Research and Development, Progress Report. Volume(issue)/page/year: NDCrc-132,DEC1942

Symbol	GHS05
Signal Word	Danger
Hazard Statements	H314
Precautionary Statements	P280-P305 + P351 + P338-P310
Personal Protective Equipment	Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	C;Xi
Risk Phrases	R36/38
Safety Phrases	S26-S36/37/39-S45
RIDADR	UN 1760 8/PG 2
WGK Germany	2
RTECS	SZ3450000
Hazard Class	8.0

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