It is a versatile laboratory vessel designed for various applications, including heating and distillation. Manufactured from high-quality borosilicate glass 3.3, this flask offers excellent thermal resistance and chemical durability. The narrow neck with a beaded rim ensures compatibility with standard stoppers and connectors, providing a secure fit during experiments. Its uniform wall thickness allows for even heating, making it suitable for use with heating mantles or liquid baths. Additionally, the flask complies with DIN ISO 1773 standards, ensuring reliable performance in laboratory settings.