Ethyltriphenylphosphonium bromide
Synonym(s):TEP
- CAS NO.：1530-32-1
- Empirical Formula: C20H20BrP
- Molecular Weight: 371.25
- MDL number: MFCD00011838
- EINECS: 216-223-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:25:51
What is Ethyltriphenylphosphonium bromide?
Chemical properties
White to off-white crystalline powder
The Uses of Ethyltriphenylphosphonium bromide
Ethyltriphenylphosphonium Bromide (ETPB) is a phase transfer catalyst, used to accelerate the cure of phenolic-based epoxy resins, certain fluoroelastomer resins and thermosetting powder coatings. It is also used as catalysts in the synthesis of certain organic compounds and as a pharmaceutical intermediate.
- Ethyltriphenylphosphonium bromide acts as a reactant in the synthesis of D-amino acids from L-cysteine-derived thiazolidines, Leiodolide A through aldol reactions and Horner-Wadsworth-Emmons olefination.
- It is also used in the preparation of cycloalkanoindolines through diastereoselective intramolecular inimo-ene reactions.
- it is used as a reagent in solid-state metathesis polycondensation to prepare alkyl-dipropenylthiophene monomers.
- Mizoroki-Heck cyclization and cascading Tsuji-Trost cyclization reactions.
Description
Ethyltriphenyl phosphonium bromide (ETPB) is a white to off-white crystalline powder used as a phase-transfer catalyst in the production of epoxy resins and powder coatings, and as a pharmaceutical intermediate.
Purification Methods
Recrystallise it from H2O and dry it in high vacuum at 100o. IR has bands at 1449, 1431 and 997cm-1 . [Wittig & Wittenberg Justus Liebigs Ann Chem 606 1 1957, Bergmann & Dusza J Org Chem 23 1245 1958, Beilstein 16 IV 982.]
Properties of Ethyltriphenylphosphonium bromide
| Melting point: | 203-205 °C(lit.) |
| Boiling point: | 240℃[at 101 325 Pa] |
| Density | 1.38[at 20℃] |
| vapor pressure | 0-0.1Pa at 20-25℃ |
| Flash point: | 200 °C |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | 174g/l soluble |
| form | Crystalline Powder |
| color | White to off-white |
| Water Solubility | 120 g/L (23 ºC) |
| Sensitive | Hygroscopic |
| BRN | 3599630 |
| CAS DataBase Reference | 1530-32-1(CAS DataBase Reference) |
| EPA Substance Registry System | Phosphonium, ethyltriphenyl-, bromide (1530-32-1) |
Safety information for Ethyltriphenylphosphonium bromide
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H301:Acute toxicity,oral H318:Serious eye damage/eye irritation H412:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Ethyltriphenylphosphonium bromide
| InChIKey | JHYNXXDQQHTCHJ-UHFFFAOYSA-M |
Ethyltriphenylphosphonium bromide manufacturer
JSK Chemicals
3Y
Phone:+91-9879767984
Whatsapp: +91-9879767970
product: Ethyltriphenylphosphonium bromide, 99 99%
ASM Organics
Andhra Pradesh
Phone:91-9866122393
Whatsapp: 91-9866122393
product: Ethyltriphenylphosphonium bromide
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