ChemicalBook >> CAS DataBase List >>Propargyltriphenylphosphonium bromide
Propargyltriphenylphosphonium bromide
- CAS No.
- 2091-46-5
- Chemical Name:
- Propargyltriphenylphosphonium bromide
- Synonyms
- prop;HC≡CCH2P(Br)(C6H5)3;Proparyltriphenylphosphonium bromide;TRIPHENYLPROPARGYLPHOSPHONIUM BROMIDE;Propargyltriphenylphosphonium bromide;PROPARGYLTRIPHENYHLPHOSPHONIUM BROMIDE;2-PROPYNYLTRIPHENYLPHOSPHONIUM BROMIDE;prop-2-ynyltriphenylphosphonium bromide;2-PROPINYL-TRIPHENYLPHOSPHONIUM BROMIDE;TriphenylpropargylphosphoniumBromide>
- CBNumber:
- CB1103946
- Molecular Formula:
- C21H18BrP
- Molecular Weight:
- 381.25
- MDL Number:
- MFCD00011811
- MOL File:
- 2091-46-5.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-09-12 18:48:34
| Melting point | 177-180 °C(lit.) |
|---|---|
| storage temp. | Store below +30°C. |
| solubility | Soluble in methanol. |
| form | solid |
| color | White to Almost white |
| Sensitive | Hygroscopic |
| BRN | 3579775 |
| InChI | 1S/C21H18P.BrH/c1-2-18-22(19-12-6-3-7-13-19,20-14-8-4-9-15-20)21-16-10-5-11-17-21;/h1,3-17H,18H2;1H/q+1;/p-1 |
| InChIKey | AFZDAWIXETXKRE-UHFFFAOYSA-M |
| CAS DataBase Reference | 2091-46-5(CAS DataBase Reference) |
| UNSPSC Code | 12352107 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 20/21/22-36/37/38 | |||||||||
| Safety Statements | 26-36/37 | |||||||||
| RIDADR | UN 2811 6.1/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| HS Code | 2931.90.6000 | |||||||||
| Storage Class | 6.1C - Combustible, acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
|||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
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| NFPA 704 |
|
Propargyltriphenylphosphonium bromide price More Price(43)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | S35441 | TRIPHENYL-PROP-2-YNYL-PHOSPHONIUM, BROMIDE AldrichCPR | 2091-46-5 | 1 unit | $32.7 | 2026-04-30 | Buy |
| Sigma-Aldrich | S35441 | TRIPHENYL-PROP-2-YNYL-PHOSPHONIUM, BROMIDE Aldrich | 2091-46-5 | 100mg | $29.8 | 2024-03-01 | Buy |
| Sigma-Aldrich | 8.41338 | 2-Propinyl-triphenylphosphonium bromide for synthesis | 2091-46-5 | 5G | $121 | 2023-01-07 | Buy |
| TCI Chemical | P1438 | Triphenylpropargylphosphonium Bromide >98.0%(T) | 2091-46-5 | 5g | $46 | 2026-04-30 | Buy |
| TCI Chemical | P1438 | Triphenylpropargylphosphonium Bromide >98.0%(T) | 2091-46-5 | 25g | $182 | 2026-04-30 | Buy |
Propargyltriphenylphosphonium bromide Chemical Properties, Uses, Production
Chemical Properties
WHITE TO SLIGHTLY YELLOW FINE CRYSTALLINE POWDER
Uses
Propargyltriphenylphosphonium bromide can be used in the alcylation of amines. It is a commonly used as a Wittig reagent.
Preparation
Propargyltriphenylphosphonium bromide is readily available from Triphenylphosphine and propargyl bromide (see Propargyl Chloride) (eq 1). The presence of hydrogen bromide is absolutely necessary, otherwise the base Ph3P causes the formation of tarry products.
Purification Methods
It recrystallises from 2-propanol as white plates. It also crystallises from EtOH with m 156-158o. IR has max 1440, 1110cm1 (P-C str). [Elter & Dediger Justus Liebigs Ann Chem 682 62 1965, Schweizer et al. J Org Chem 42 200 1977].
Propargyltriphenylphosphonium bromide Preparation Products And Raw materials
Raw materials
Preparation Products
Propargyltriphenylphosphonium bromide Suppliers
Global Suppliers ( 112)
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Beijing Donghualituo Techonlogy Development Co.,Ltd. | 010-88425576 | sales@dhltchem.com | China | 793 | 59 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Sinopharm Chemical Reagent Co,Ltd. | 86-21-63210123 | sj_scrc@sinopharm.com | China | 9791 | 79 |
| Sci General Material & Chemical Ltd | 021-58388037;21-58388037 13472507714 | 35177634@qq.com;1589045147@qq.com | China | 795 | 55 |
View Latest Price from Propargyltriphenylphosphonium bromide manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-07 | TriphenylpropargylphosphoniuM BroMide
2091-46-5
|
$1.00 | 1KG | 99% | 20 tons | Shaanxi Dideu Medichem Co. Ltd | |
 |
2021-08-12 | PROPARGYLTRIPHENYLPHOSPHONIUM BROMIDE
2091-46-5
|
$10.00-15.00 | 1KG | 99%+ HPLC | Zhuozhou Wenxi import and Export Co., Ltd | ||
 |
2020-03-08 | Triphenyl-2-propynylphosphonium bromide
2091-46-5
|
$10.00-100.00 | 1KG | Min98% HPLC | Career Henan Chemical Co |
-
- TriphenylpropargylphosphoniuM BroMide
2091-46-5
- $1.00
- 99%
- Shaanxi Dideu Medichem Co. Ltd
-
- PROPARGYLTRIPHENYLPHOSPHONIUM BROMIDE
2091-46-5
- $10.00-15.00
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
-
- Triphenyl-2-propynylphosphonium bromide
2091-46-5
- $10.00-100.00
- Min98% HPLC
- Career Henan Chemical Co
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1of4
2-PROPYNYLTRIPHENYLPHOSPHONIUM BROMIDE
2-PROPINYL-TRIPHENYLPHOSPHONIUM BROMIDE
TRIPHENYLPROPARGYLPHOSPHONIUM BROMIDE
TRIPHENYL(2-PROPYNYL)PHOSPHONIUM BROMIDE
PROPARGYLTRIPHENYHLPHOSPHONIUM BROMIDE
prop-2-ynyltriphenylphosphonium bromide
PROPARGYLTRIPHENYLPHOSPHONIUM BROMIDE, 9 8%
(2-propyn-1-yl)triphenylphosphonium bromide
triphenyl-2-propyn-1-ylphosphonium bromide
PROPARGYLTRIPHENYLPHOSPHONIUM BROMIDE,99+%
HC≡CCH2P(Br)(C6H5)3
Propargyltriphenylphosphonium Bromide
Triphenyl(2-propynyl)phosphonium Bromide
TRIPHENYL-PROP-2-YNYL-PHOSPHONIUM, BROMIDE
Triphenyl(prop-2-yn-1-yl)phosphonium bromide
2-Propinyl-triphenylphosphonium bromide for synthesis
TriphenylpropargylphosphoniumBromide>
Phosphonium, triphenyl-2-propyn-1-yl-, bromide (1:1)
Proparyltriphenylphosphonium bromide
prop
Propargyltriphenylphosphonium bromide
2091-46-5
C21H18PBr
C21H18BrP
HCCCH2PC6H53Br
H18C21PBr
HC8801CCH2PBrC6H53
C-C Bond Formation
Olefination
Synthetic Reagents
Wittig Reagents
Acetylenes
Functionalized Acetylenes
Wittig & Horner-Emmons Reaction
Phosphonium Compounds
Wittig Reaction
Wittig & Horner-Emmons Reaction
Wittig Reaction
Acetylenes
Functionalized Acetylenes
Phosphonium Compounds
Synthetic Organic Chemistry
