2605-67-6 Methyl (triphenylphosphoranylidene)acetate Acetic acid, 2-(triphenylphosphoranylidene)-, methyl ester Acetic acid, (triphenylphosphoranylidene)-, methyl ester (Carbomethoxymethylene)triphenylphosphorane EINECS 220-018-4 ((Methoxycarbonyl)methylene)triphenylphosphorane Methyl triphenylphosphoranylideneacetate NSC 117573 NSC 407395 Triphenyl(carbomethoxymethylene)phosphorane (Triphenylphosphoranylidene)acetic acid methyl ester CAS 2605-67-6

Purity 97%+In StockPharmaceutical Standards
CAS No.2605-67-6
Molecular FormulaC21H37O2P
Molecular Weight352.49 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2605-67-6
Methyl (triphenylphosphoranylidene)acetate
Acetic acid, 2-(triphenylphosphoranylidene)-, methyl ester
Acetic acid, (triphenylphosphoranylidene)-, methyl ester
(Carbomethoxymethylene)triphenylphosphorane
EINECS 220-018-4
((Methoxycarbonyl)methylene)triphenylphosphorane
Methyl triphenylphosphoranylideneacetate
NSC 117573
NSC 407395
Triphenyl(carbomethoxymethylene)phosphorane
(Triphenylphosphoranylidene)acetic acid methyl ester CAS 2605-67-6 chemical structure

Description

Based on its molecular formula C21H37O2P, 2605-67-6 Methyl (triphenylphosphoranylidene)acetate Acetic acid, 2-(triphenylphosphoranylidene)-, methyl ester Acetic acid, (triphenylphosphoranylidene)-, methyl ester (Carbomethoxymethylene)triphenylphosphorane EINECS 220-018-4 ((Methoxycarbonyl)methylene)triphenylphosphorane Methyl triphenylphosphoranylideneacetate NSC 117573 NSC 407395 Triphenyl(carbomethoxymethylene)phosphorane (Triphenylphosphoranylidene)acetic acid methyl ester contains organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 352.49 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

2605-67-6 Methyl (triphenylphosphoranylidene)acetate Acetic acid, 2-(triphenylphosphoranylidene)-, methyl ester Acetic acid, (triphenylphosphoranylidene)-, methyl ester (Carbomethoxymethylene)triphenylphosphorane EINECS 220-018-4 ((Methoxycarbonyl)methylene)triphenylphosphorane Methyl triphenylphosphoranylideneacetate NSC 117573 NSC 407395 Triphenyl(carbomethoxymethylene)phosphorane (Triphenylphosphoranylidene)acetic acid methyl ester (CAS 2605-67-6) is a high-purity analytical reference standard with the molecular formula C21H37O2P and a molecular weight of 352.49 g/mol.

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.

As a certified reference material (CRM), 2605-67-6 Methyl (triphenylphosphoranylidene)acetate Acetic acid, 2-(triphenylphosphoranylidene)-, methyl ester Acetic acid, (triphenylphosphoranylidene)-, methyl ester (Carbomethoxymethylene)triphenylphosphorane EINECS 220-018-4 ((Methoxycarbonyl)methylene)triphenylphosphorane Methyl triphenylphosphoranylideneacetate NSC 117573 NSC 407395 Triphenyl(carbomethoxymethylene)phosphorane (Triphenylphosphoranylidene)acetic acid methyl ester meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC21H37O2P
Molecular Weight352.49 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1957

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