4-(4-(4-Nitrophenoxy)butoxy)benzene-1-sulfonyl fluoride CAS 21278-60-4

Purity 97%+In StockPharmaceutical Standards
CAS No.21278-60-4
Molecular FormulaC16H16FNO6S
Molecular Weight369.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(4-(4-Nitrophenoxy)butoxy)benzene-1-sulfonyl fluoride CAS 21278-60-4 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 4-(4-(4-Nitrophenoxy)butoxy)benzene-1-sulfonyl fluoride.

4-(4-(4-Nitrophenoxy)butoxy)benzene-1-sulfonyl fluoride (CAS 21278-60-4) is a high-purity analytical reference standard with the molecular formula C16H16FNO6S and a molecular weight of 369.36 g/mol.

Structurally, 4-(4-(4-Nitrophenoxy)butoxy)benzene-1-sulfonyl fluoride (C16H16FNO6S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 369.36 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC16H16FNO6S
Molecular Weight369.36 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963
Halogen ContentF-containing
Nitrogen Atoms1
Sulfur Atoms1

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