Triethylphosphine
- CAS No.
- 554-70-1
- Chemical Name:
- Triethylphosphine
- Synonyms
- triethylphosphane;PEt3;Triethylphosphine,99%;Et3P;tl409;(C2H5)3P;Cytop? 320;CYTOP(R) 320;AURORA KA-1111;HISHICOLIN P-2
- CBNumber:
- CB2753331
- Molecular Formula:
- C6H15P
- Molecular Weight:
- 118.16
- MDL Number:
- MFCD00009256
- MOL File:
- 554-70-1.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| Triethylphosphine 99% | 245275 | 5g | $141 |
| Triethylphosphine 99% | 245275 | 25g | $665 |
| Triethylphosphine, 99% (10 wt% in hexanes) 99% | 15-6305 | 50g | $134 |
| Triethylphosphine, 99% (10 wt% in hexanes) 99% | 15-6305 | 250g | $369 |
| Triethylphosphine, 99% (20 wt% in ethanol) 99% | 15-6304 | 25g | $88 |
| More product size | |||
| Melting point | -88°C |
|---|---|
| Boiling point | 127-128 °C(lit.) |
| Density | 0.88 g/mL at 20 °C |
| refractive index |
n |
| Flash point | 1 °F |
| form | liquid |
| color | colorless |
| Odor | vile, nauseating odor.stench |
| Water Solubility | Insoluble in water. |
| Sensitive | Air & Moisture Sensitive |
| Merck | 14,9675 |
| BRN | 969170 |
| InChI | 1S/C6H15P/c1-4-7(5-2)6-3/h4-6H2,1-3H3 |
| InChIKey | RXJKFRMDXUJTEX-UHFFFAOYSA-N |
| SMILES | CCP(CC)CC |
| CAS DataBase Reference | 554-70-1(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 5W435D16PM |
| NIST Chemistry Reference | Phosphine, triethyl-(554-70-1) |
| EPA Substance Registry System | Phosphine, triethyl- (554-70-1) |
| UNSPSC Code | 12352128 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS02,GHS05 |
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|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H250-H314 | |||||||||
| Precautionary statements | P231+P232-P280-P303+P361+P353-P305+P351+P338+P310-P370+P378 | |||||||||
| Hazard Codes | F,C | |||||||||
| Risk Statements | 11-34-67-17-40-37-19 | |||||||||
| Safety Statements | 26-36/37/39-45-7/9-33-16 | |||||||||
| RIDADR | UN 2924 3/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | SZ3400000 | |||||||||
| F | 10-13-23 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 4.2 | |||||||||
| PackingGroup | I | |||||||||
| Storage Class | 4.2 - Pyrophoric and self-heating hazardous materials | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Eye Dam. 1 Flam. Liq. 2 Pyr. Liq. 1 Skin Corr. 1B |
|||||||||
| Limited Quantities | 1.0 L (0.3 gallon) (liquid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) | |||||||||
| NFPA 704 |
|
Triethylphosphine price More Price(23)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 245275 | Triethylphosphine 99% | 554-70-1 | 5g | $141 | 2026-04-30 | Buy |
| Sigma-Aldrich | 245275 | Triethylphosphine 99% | 554-70-1 | 25g | $665 | 2026-04-30 | Buy |
| Strem Chemicals | 15-6305 | Triethylphosphine, 99% (10 wt% in hexanes) 99% | 554-70-1 | 50g | $134 | 2026-04-30 | Buy |
| Strem Chemicals | 15-6305 | Triethylphosphine, 99% (10 wt% in hexanes) 99% | 554-70-1 | 250g | $369 | 2026-04-30 | Buy |
| Strem Chemicals | 15-6304 | Triethylphosphine, 99% (20 wt% in ethanol) 99% | 554-70-1 | 25g | $88 | 2026-04-30 | Buy |
Triethylphosphine Chemical Properties,Uses,Production
Chemical Properties
Colorless Transparent Liquid
Uses
In organic syntheses.
Uses
suzuki reaction
Uses
Triethylphosphine is used as a ligand for arylation. It is used in organic synthesis.
Definition
ChEBI: Triethylphosphine is a tertiary phosphine.
reaction suitability
reagent type: ligand
reaction type: Arylations
Safety Profile
Highly flammable liquid. Reactswith oxygen at low temperatures to form an explosiveproduct. When heated to decomposition it emits toxicfumes of POx.
Synthesis
Triethylphosphine is prepared most conveniently by the reaction of excess Grignard reagent on phosphorus trichloride or triphenylphosphite.
3CH3CH2MgBr + PCl3 → (CH3CH2)3P + 3MgBrCl
3CH3CH2MgBr + P(OC6H5)3 → P(CH3CH2)3 + 3C6H5-OMgCl
Purification Methods
All operations should be carried out in an efficient fume cupboard because it is flammable, toxic and has a foul odour. Purify the phosphine by fractional distillation at atmospheric pressure in a stream of dry N2, as it is oxidised by air to the oxide. In 300% excess of CS2 it forms Et3PCS2 (m 118-120o crystallising from MeOH) which decomposes in CCl4 to give Et3PS as a white solid m 94o when recrystallised from EtOH. [Sorettas & Isbell J Org Chem 27 273 1962, Henderson & Streuli J Am Chem Soc 82 5791 1960, pK: Henderson & Streuli J Am Chem Soc 82 5791 1960, see also trimethylphosphine.] Store it in sealed vials under N2. Alternatively, dissolve it in Et2O and shake it with a solution of AgI and KI to form the insoluble complex. Filter off the complex, dry it over P2O5 and the Et3P is regenerated by heating the complex in a tube attached to a vacuum system. [Hewitt & Holliday J Chem Soc 530 1953, Schettas & Isbell J Org Chem 27 2573 1962, Kosolapoff Organophosphorus Compounds, Wiley p 31 1950, Beilstein 4 IV 3431.]
Triethylphosphine Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 14014 | 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 | 21586 | 55 |
| AB PharmaTech,LLC | 323-480-4688 | sales@acrospharmatech.com | United States | 989 | 55 |
| Nanjing Dolon Biotechnology Co.,Ltd. | 18905173768 | 52513593@qq.com | CHINA | 2972 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29792 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81139210 +86-18192627656 | 1059@dideu.com | China | 3703 | 58 |
| Richest Group Ltd | 18017061086 | oled@richest-group.com | CHINA | 5600 | 58 |
| Antai Fine Chemical Technology Co.,Limited | 18503026267 | info@antaichem.com | CHINA | 9636 | 58 |
View Lastest Price from Triethylphosphine manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-06-04 | Triethylphosphine
554-70-1
|
1Kg | 98％; sales036@researchvip.com;18903931628; | 5Kg | Henan Research New Materials Co., Ltd. | ||
 |
2026-03-20 | Triethylphosphine
554-70-1
|
1KG | 99% | 20 mt | Hebei Chuanghai Biotechnology Co., Ltd | ||
 |
2025-12-12 | Triethylphosphine
554-70-1
|
$1.00 | 1KG | 99% | 20 Tons | Shaanxi Dideu Medichem Co. Ltd |
-
- Triethylphosphine
554-70-1
- 98％; sales036@researchvip.com;18903931628;
- Henan Research New Materials Co., Ltd.
-
- Triethylphosphine
554-70-1
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Triethylphosphine
554-70-1
- $1.00
- 99%
- Shaanxi Dideu Medichem Co. Ltd
