Material: DURAN ® glass. Autoclavable: yes. Specially shaped recessed grips for easier and safer handling Slim bottle shape allows more space-saving use Scale indicating total volume Predefined labelling space Ergonomically shaped screw cap with leak-proof sealing system for optimal handling, even by users with small or gloved hands Optimised thread (compatible with DIN GL 45 closures) for faster bottle opening and closing With retrace code Screw top bottle DURAN ® YOUTILITY Brown glass For storing light-sensitive substances. Meets the requirements of USP <660> and Eur. Ph. 3.2.1. with regard to light protection. DURAN ® characteristic inside the bottle remain unaltered as only the exterior is coated; long useful life and brown colouring has good chemical resistance. Light protection: absorption in short wave range up to 500 nm. Delivery incl. optimised screw cap and PP pouring ring.