About this item
Wide-Pore butyl (C4) chromatographic media is made by covalently bonding butyl ligands to pure silica gel using a proprietary process to optimize separation efficiency, capacity, and stability.
- Fully polymeric bonding
- Uniform distribution of ligands
- High ligand density, separation efficiency and capacity
- Increased stability of ligands
Every lot of this material is tested according to the specifications listed. All tests are intended to maintain purity and stability, ligand density and performance. The purity and stability tests include turbidity, color of methanol extract and extraction residue. The relative carbon content, surface coverage and average particle size determine ligand density, separation capability and efficiency. The liquid chromatographic use tests report actual separation performance of the chromatographic media for small molecules and proteins. A produced lot must meet all specification criteria before it is released for sale. This material is suitable for separation and purification of small to large molecules by reverse phase or hydrophobic interaction mechanism. In particular, it is most suitable for semi-prep to process scale separation/purification of large molecules such as synthetic peptides and proteins with a molecular weight of greater than 8000 Daltons due to large pore size, narrow pore size distribution, and high porosity.
To order chemicals, medical devices, or other restricted products please provide ID that includes your business name & shipping address via email [email protected] or fax 484.881.5997 referencing your VWR account number. Acceptable forms of ID are:
- • State issued document with your organization's Federal Tax ID Number
- • State issued document with your organization's Resale Tax ID Number
- • City or County issued Business License
- • State Department of Health Services License
- • Any other ID issued by the State that includes the business name & address
* ATTN: California Customers may require additional documentation as part of the CA Health & Safety Code. Products that fall under this regulation will be placed on a mandatory 21-day hold after documentation is received. VWR will not lift restrictions for residential shipping addresses.
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