Nacalai Tesque COSMOSIL 3nNAP Packed Guard Cartridge, Waters Type End-fitting, 120 A, 3 um, 4.6 mm ID x 10 mm Length, 2/Pk - 21527-54

COSMOSIL πNAP

Nacalai Tesque COSMOSIL 3nNAP Packed Guard Cartridge, Waters Type End-fitting, 120Å, 3µm, 4.6 mm ID x 10 mm Length, pack of two

Product Number: 21527-54 / 2152754

Specialty for Structual Isomers / π-π interaction, excellent selectivity for unsaturated compounds

• Naphthalene bonded stationary phase
• Enhanced π-π interactions
• Improved selectivity for structural isomers

Separation of unsaturated compounds on conventional reversed phase columns such as C8 and C18 is often problematic. Phenyl stationary phases are commonly used for these compounds because they form π-π interactions and show different selectivity from conventional alkyl phases. However, the π-π interactions on phenyl stationary phases are moderate, and the separation for some unsaturated compounds are still insufficient.

COSMOSIL πNAP is a Reversed Phase HPLC Column with naphtylethyl group bonded silica packing material. The naphthylethyl group is composed of two fused aromatic rings and forms strong π-π interactions with unsaturated compounds. This column offers improved selectivity for structural isomers that exhibit differences in saturation.