(3aS,6aS)-3,6-Diphenyl-1,3a,4,6a-tetrahydropentalene CAS 940280-80-8

Purity 97%+In StockPharmaceutical Standards
CAS No.940280-80-8
Molecular FormulaC20H18
Molecular Weight258.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3aS,6aS)-3,6-Diphenyl-1,3a,4,6a-tetrahydropentalene CAS 940280-80-8 chemical structure

Description

Based on its molecular formula C20H18, (3aS,6aS)-3,6-Diphenyl-1,3a,4,6a-tetrahydropentalene contains a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 258.36 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).

(3aS,6aS)-3,6-Diphenyl-1,3a,4,6a-tetrahydropentalene (CAS 940280-80-8) is a high-purity analytical reference standard with the molecular formula C20H18 and a molecular weight of 258.36 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.

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 FormulaC20H18
Molecular Weight258.36 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987

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