The Wide-Mouth Boston Round Bottle-HDPE-250ml offers secure storage and transport solutions. Made of high-density polyethylene (HDPE) with a polypropylene (PP) closure, it ensures a leakproof seal. This bottle conforms to USP Class VI standards and is low in trace elements. Its excellent chemical resistance to acids, bases, and alcohols makes it ideal for storing, packaging, and shipping dry materials and liquids. Perfect for freezer storage down to -100°C.