2216-94-6 09CYB3Z9MR Ethylphenylpropiolate Ethyl phenylpropiolate Ethyl 3-phenylprop-2-ynoate Propiolic acid, phenyl-, ethyl ester 2-Propynoic acid, 3-phenyl-, ethyl ester (9CI) 2-Propynoic acid, 3-phenyl-, ethyl ester 4-09-00-02328 (Beilstein Handbook Reference) AI3-04344 BRN 0639637 CCRIS 4504 EINECS 218-703-8 Ethyl phenylacetylenecarboxylate Ethyl 3-phenylpropiolate Ethyl phenylpropriolate Ethyl phenylpropynoate Ethyl 3-phenylpropynoate Ethyl 3-phenyl-2-propynoate NSC 41566 Phenylacetylene monocarboxylic acid ethyl ester UNII-09CYB3Z9MR CAS 2216-94-6

Purity 97%+In StockPharmaceutical Standards
CAS No.2216-94-6
Molecular FormulaC11H16O2
Molecular Weight180.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2216-94-6 09CYB3Z9MR Ethylphenylpropiolate Ethyl phenylpropiolate Ethyl 3-phenylprop-2-ynoate Propiolic acid, phenyl-, ethyl ester 2-Propynoic acid, 3-phenyl-, ethyl ester (9CI) 2-Propynoic acid, 3-phenyl-, ethyl ester 4-09-00-02328 (Beilstein Handbook Reference) AI3-04344 BRN 0639637 CCRIS 4504 EINECS 218-703-8 Ethyl phenylacetylenecarboxylate Ethyl 3-phenylpropiolate Ethyl phenylpropriolate Ethyl phenylpropynoate Ethyl 3-phenylpropynoate Ethyl 3-phenyl-2-propynoate NSC 41566 Phenylacetylene monocarboxylic acid ethyl ester UNII-09CYB3Z9MR CAS 2216-94-6 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

2216-94-6 09CYB3Z9MR Ethylphenylpropiolate Ethyl phenylpropiolate Ethyl 3-phenylprop-2-ynoate Propiolic acid, phenyl-, ethyl ester 2-Propynoic acid, 3-phenyl-, ethyl ester (9CI) 2-Propynoic acid, 3-phenyl-, ethyl ester 4-09-00-02328 (Beilstein Handbook Reference) AI3-04344 BRN 0639637 CCRIS 4504 EINECS 218-703-8 Ethyl phenylacetylenecarboxylate Ethyl 3-phenylpropiolate Ethyl phenylpropriolate Ethyl phenylpropynoate Ethyl 3-phenylpropynoate Ethyl 3-phenyl-2-propynoate NSC 41566 Phenylacetylene monocarboxylic acid ethyl ester UNII-09CYB3Z9MR (CAS 2216-94-6) is a high-purity analytical reference standard with the molecular formula C11H16O2 and a molecular weight of 180.24 g/mol.

Structurally, 2216-94-6 09CYB3Z9MR Ethylphenylpropiolate Ethyl phenylpropiolate Ethyl 3-phenylprop-2-ynoate Propiolic acid, phenyl-, ethyl ester 2-Propynoic acid, 3-phenyl-, ethyl ester (9CI) 2-Propynoic acid, 3-phenyl-, ethyl ester 4-09-00-02328 (Beilstein Handbook Reference) AI3-04344 BRN 0639637 CCRIS 4504 EINECS 218-703-8 Ethyl phenylacetylenecarboxylate Ethyl 3-phenylpropiolate Ethyl phenylpropriolate Ethyl phenylpropynoate Ethyl 3-phenylpropynoate Ethyl 3-phenyl-2-propynoate NSC 41566 Phenylacetylene monocarboxylic acid ethyl ester UNII-09CYB3Z9MR (C11H16O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 180.24 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC11H16O2
Molecular Weight180.24 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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