tert-Butyl 2-ethyl-4-oxo-1,2,3,4-tetrahydroquinoline-1-carboxylate CAS 228730-88-9

Purity 97%+In StockPharmaceutical Standards
CAS No.228730-88-9
Molecular FormulaC16H21NO3
Molecular Weight275.34 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

tert-Butyl 2-ethyl-4-oxo-1,2,3,4-tetrahydroquinoline-1-carboxylate CAS 228730-88-9 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including tert-Butyl 2-ethyl-4-oxo-1,2,3,4-tetrahydroquinoline-1-carboxylate.

tert-Butyl 2-ethyl-4-oxo-1,2,3,4-tetrahydroquinoline-1-carboxylate (CAS 228730-88-9), molecular formula C16H21NO3 and molecular weight 275.34 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, tert-Butyl 2-ethyl-4-oxo-1,2,3,4-tetrahydroquinoline-1-carboxylate (C16H21NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 275.34 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), tert-Butyl 2-ethyl-4-oxo-1,2,3,4-tetrahydroquinoline-1-carboxylate 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 FormulaC16H21NO3
Molecular Weight275.34 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2022
Nitrogen Atoms1

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