Ethyltriphenylphosphonium acetate - 70% in methanol , CAS No.35835-94-0

CAS: 35835-94-0 Cat. No.: E334309 Molecular Weight: 350.4 EC Number: 252-743-7

GRADE & PURITY 70% in methanol

Synonyms

Phosphonium, ethyltriphenyl-, acetate (1:1) | Ethyltriphenylphosphonium acetate, 70% in methanol | Ethyltriphenylphosphoniumacetate | ethyl(triphenyl)phosphanium;acetate | Ethyltriphenylphosphonium Acid Acetate | MFCD00061389 | Phosphonium, ethyltriphenyl

Storage

Room temperature,Argon charged

Shipped In

Normal

Overview

Ethyltriphenylphosphonium acetate is mainly used for the advancement and curing of phenolic based epoxy resins and as a phase transfer catalyst. It exhibits considerable better latency and thermal stability when compared to amines, imidazoles and quaternary ammonium salts. Furthermore, it has minimal odor, and color formation , as well as, controlled reactivity. It decreases or eliminates side reactions and creates longer, straighter chain epoxy molecules which have a sharp molecular weight distribution.

Specifications

Synonyms

Phosphonium, ethyltriphenyl-, acetate (1:1) | Ethyltriphenylphosphonium acetate, 70% in methanol | Ethyltriphenylphosphoniumacetate | ethyl(triphenyl)phosphanium;acetate | Ethyltriphenylphosphonium Acid Acetate | MFCD00061389 | Phosphonium, ethyltriphenyl

Specifications & Purity

70% in methanol

Storage

Room temperature, Argon charged

Shipped In

Normal

Names and Identifiers

• Pubchem Sid: 488186840
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/488186840
• Canonical Smiles: CC[P+](C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.CC(=O)[O-]
• IUPAC Name: ethyl(triphenyl)phosphanium;acetate
• InChIKey: HZZUMXSLPJFMCB-UHFFFAOYSA-M
• INCHI: 1S/C20H20P.C2H4O2/c1-2-21(18-12-6-3-7-13-18,19-14-8-4-9-15-19)20-16-10-5-11-17-20;1-2(3)4/h3-17H,2H2,1H3;1H3,(H,3,4)/q+1;/p-1
• Isomeric SMILES: CC[P+](C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.CC(=O)[O-]
• UN Number: 1993
• Packing Group: II
• Molecular Weight: 350.4
• Reaxy-Rn: 14003383
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=14003383&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organic acids and derivatives
    • Class Carboxylic acids and derivatives
      • Subclass Carboxylic acids

• Kingdom: Organic compounds
• Superclass: Organic acids and derivatives
• Class: Carboxylic acids and derivatives
• Subclass: Carboxylic acids
• Intermediate Tree Nodes: Not available
• Direct Parent: Carboxylic acids
• Alternative Parents: Monocarboxylic acids and derivatives Organic salts Organic oxides Hydrocarbon derivatives Carbonyl compounds
• Molecular Framework: Not available
• Substituents: Monocarboxylic acid or derivatives - Carboxylic acid - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organic salt - Organooxygen compound - Carbonyl group - Aromatic homomonocyclic compound
• Description: This compound belongs to the class of organic compounds known as carboxylic acids. These are compounds containing a carboxylic acid group with the formula -C(=O)OH.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: Soluble in water, and alcohol.
• Flash Point(°F): 0°F
• Flash Point(°C): -17°C
• Boil Point(°C): 64.7° C
• Molecular Weight: 350.400 g/mol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 4
• Exact Mass: 350.144 Da
• Monoisotopic Mass: 350.144 Da
• Topological Polar Surface Area: 40.100 Ų
• Heavy Atom Count: 25
• Formal Charge: 0
• Complexity: 273.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 2

XLogP3

References

1. Ming Huang, Yidi Liu, Xin Qu, Jingcheng Liu, Xiaojie Li, Wei Wei.  (2025)  A phosphorus-containing multielement flame retardant with schiff base structure imparting excellent flame retardancy, mechanical performance, and transparency to anhydride-cured epoxy resins.  EUROPEAN POLYMER JOURNAL,      [PMID:] [10.1016/j.eurpolymj.2025.114439]