Replacement holder shaft o-rings for a Thermo Fisher Scientific in situ holder, quantity five (5) o-rings.

Molecular Dimensions is a supplier of modern screens and reagents for protein structure determination by X-ray crystallography. They have a wide variety of products for protein crystallography including bacterial growth media, ready-to-use selenomethioine expression media, crystallization screens, crystallization plates and cryocrystallography. They also supply crystal growth incubators and automated solutions for crystal growth imaging and analysis with UV fluorescence.