Unknown Chemical X in Laboratory Flask - Science Illustration #3071327 (License: Personal Use)

This vector illustration depicts a classic Erlenmeyer flask filled with vibrant purple liquid, featuring a prominent black 'X' symbol at its center. The clean, flat design with subtle shading suggests a modern educational or infographic use, emphasizing anonymity or placeholder status for an uncharacterized substance. The transparent glass and liquid gradient add visual depth while maintaining clarity.

Frequently used in science education materials, chemistry infographics, or speculative fiction to represent unknown substances, experimental reagents, or placeholder chemicals. Matches user intent for conceptual visuals in STEM content, quizzes, or safety training.