1-Ethyl-4-(phenylsulfonyl)-1,2,3,4-tetrahydroquinoxaline CAS 7151-18-0

Purity 97%+In StockPharmaceutical Standards
CAS No.7151-18-0
Molecular FormulaC16H18N2O2S
Molecular Weight302.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Ethyl-4-(phenylsulfonyl)-1,2,3,4-tetrahydroquinoxaline CAS 7151-18-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 302.39 g/mol gives 1-Ethyl-4-(phenylsulfonyl)-1,2,3,4-tetrahydroquinoxaline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-Ethyl-4-(phenylsulfonyl)-1,2,3,4-tetrahydroquinoxaline (CAS 7151-18-0), molecular formula C16H18N2O2S and molecular weight 302.39 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C16H18N2O2S, 1-Ethyl-4-(phenylsulfonyl)-1,2,3,4-tetrahydroquinoxaline contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 302.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaC16H18N2O2S
Molecular Weight302.39 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1959
Nitrogen Atoms2
Sulfur Atoms1

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