4-Hydroxyphenylacetaldehyde, approximately >15% by weight in Ethyl Acetate CAS 7339-87-9

Purity >90%In StockPharmaceutical Standards
CAS No.7339-87-9
Molecular FormulaC8H8O2
Molecular Weight136.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Hydroxyphenylacetaldehyde, approximately >15% by weight in Ethyl Acetate CAS 7339-87-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 136.15 g/mol gives 4-Hydroxyphenylacetaldehyde, approximately >15% by weight in Ethyl Acetate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Hydroxyphenylacetaldehyde, approximately >15% by weight in Ethyl Acetate (CAS 7339-87-9) is a high-purity analytical reference standard with the molecular formula C8H8O2 and a molecular weight of 136.15 g/mol.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 4-Hydroxyphenylacetaldehyde, approximately >15% by weight in Ethyl Acetate is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 136.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

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.

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.

Physical & Chemical Properties

Molecular FormulaC8H8O2
Molecular Weight136.15 g/mol
Purity>90%
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1959

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