6-Methoxy-2,2-dimethyl-3,4-dihydro-2H-benzo[h]chromene CAS 20213-26-7

Purity 97%+In StockPharmaceutical Standards
CAS No.20213-26-7
Molecular FormulaC16H18O2
Molecular Weight242.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-Methoxy-2,2-dimethyl-3,4-dihydro-2H-benzo[h]chromene CAS 20213-26-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 242.31 g/mol gives 6-Methoxy-2,2-dimethyl-3,4-dihydro-2H-benzo[h]chromene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

6-Methoxy-2,2-dimethyl-3,4-dihydro-2H-benzo[h]chromene (CAS 20213-26-7), molecular formula C16H18O2 and molecular weight 242.31 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C16H18O2, 6-Methoxy-2,2-dimethyl-3,4-dihydro-2H-benzo[h]chromene contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 242.31 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).

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 FormulaC16H18O2
Molecular Weight242.31 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962

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