Ethyl phenylphosphinate - ≥94% , CAS No.2511-09-3

CAS: 2511-09-3 Cat. No.: E133085 Molecular Weight: 170.15 PubChem CID: 6328020
AVAILABLE TO ORDER
GRADE & PURITY ≥94%
Synonyms
Phosphinic acid, ethyl ester | WLN: OPHR&O2 | NSC 300841 | NSC300841 | NSC-300841 | ethoxy-oxo-phenylphosphanium | AKOS027325270 | Phosphinic acid, phenyl-, ethyl ester | O-Ethyl phenylphosphinate | J-015815 | AS-63911 | Phosphinic acid, P-phenyl-, ethyl
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1ml
E133085-1ml
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$11.90
5ml
E133085-5ml
3
$19.90
25ml
E133085-25ml
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$91.90
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Why this grade

≥94% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at 2-8°C,Argon charged Ships Wet ice Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Ethyl phenylphosphinate is an organophosphorous compound. It undergoes regioselective Markovnikov addition reaction with terminal alkynes in the presence of palladium-1,2-bis(diphenylphosphino)ethane complex (catalyst). Ethyl phenylphosphinate is the photodecomposition product of Inezin (S-benzyl O-ethyl phenylphosphonothiolate) on the ultraviolet irradiation. It can be prepared by the reaction of phosphinic acid with ethyl chloroformate in the presence of pyridine. Its ethylation using ethyl trimethylsilyl phenylphosphonite or the corresponding trimethylstannyl ester has been described. Its free-radical addition to ethylene has been reported to proceed with the retention of configuration.

Ethyl phenylphosphinate may be used in the preparation of the following diethyl imidazol-2-yl-(amino) methylphosphonates and phosphinates:

• imidazol-2-yl-methyl(N-butylamino)phosphonate diethyl ester

• imidazol-2-yl-methyl(N-benzylamino)phosphonate diethyl ester

• imidazol-2-yl-methyl(N-butylamino)phenylphosphinate ethyl ester

• imidazol-2-yl-methyl(N-benzylamino)phenylphosphinate ethyl ester

Specifications

Synonyms
Phosphinic acid, ethyl ester | WLN: OPHR&O2 | NSC 300841 | NSC300841 | NSC-300841 | ethoxy-oxo-phenylphosphanium | AKOS027325270 | Phosphinic acid, phenyl-, ethyl ester | O-Ethyl phenylphosphinate | J-015815 | AS-63911 | Phosphinic acid, P-phenyl-, ethyl
Specifications & Purity
≥94%
Storage
Store at 2-8°C, Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥94%
Names and Identifiers
Pubchem Sid504764067
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504764067
Canonical SmilesCCO[P+](=O)C1=CC=CC=C1
IUPAC Nameethoxy-oxo-phenylphosphanium
InChIKeyYJSXLGKPMXKZJR-UHFFFAOYSA-N
INCHI1S/C8H10O2P/c1-2-10-11(9)8-6-4-3-5-7-8/h3-7H,2H2,1H3/q+1
Isomeric SMILES CCO[P+](=O)C1=CC=CC=C1
PubChem CID 6328020
Molecular Weight 170.15

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentBenzene and substituted derivatives
Alternative Parents Organophosphorus compounds  Organooxygen compounds  Organic oxides  Hydrocarbon derivatives  Organic cations  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Monocyclic benzene moiety - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organophosphorus compound - Organooxygen compound - Organic cation - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzene and substituted derivatives. These are aromatic compounds containing one monocyclic ring system consisting of benzene.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

4 results found

Lot NumberCertificate TypeDateItem
G2515050Certificate of AnalysisJul 31, 2025 E133085
K2123050Certificate of AnalysisAug 18, 2023 E133085
K2123057Certificate of AnalysisAug 18, 2023 E133085
K1519083Certificate of AnalysisJun 07, 2023 E133085
Chemical and Physical Properties
Refractive Index1.526
Boil Point(°C)94-95 °C/1 mmHg
Molecular Weight169.140 g/mol
XLogP31.600
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count3
Exact Mass169.042 Da
Monoisotopic Mass169.042 Da
Topological Polar Surface Area26.300 Ų
Heavy Atom Count11
Formal Charge1
Complexity130.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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