The 250mL wide-mouth ultra-clean PE bottle is formed in one piece from dual-layer HDPE. The brown body blocks ultraviolet light, effectively preventing photosensitive high-purity reagents from degrading. The generous wide mouth eases filling of viscous chemicals and solid raw materials and allows thorough interior cleaning. Manufactured in a dust-free environment with strict control of particle and metal ion leaching risk, it prevents reagent contamination. Suited to semiconductor wet electronic chemicals and premium laboratory reagent storage, with colour customisation available to meet various dispensing and transfer needs across the clean supply chain.