N-Octadecane CAS 593-45-3

Purity >95%In StockPharmaceutical Standards
CAS No.593-45-3
Molecular FormulaC18H38
Molecular Weight254.49 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

N-Octadecane CAS 593-45-3 chemical structure

Description

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.

N-Octadecane (CAS 593-45-3), molecular formula C18H38 and molecular weight 254.49 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to an organic framework, N-Octadecane is typically white to off-white low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 254.49 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

Physical & Chemical Properties

Molecular FormulaC18H38
Molecular Weight254.49 g/mol
Purity>95%
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)0.0
CAS Registry Year (est.)1957

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Why CATO?