Ensure your critical sample identification withstands the harshest laboratory processes with the Solvent Resistant Pen. This permanent black marker is specifically engineered to create indelible markings that will not smear, fade, or run when exposed to common laboratory solvents, including xylene, alcohol, and DMSO. Whether you are labeling histology cassettes, microscope slides, or cryogenic vials, this pen provides the reliability you need to maintain data integrity from preparation to analysis. Key Features & Benefits: - Superior Solvent Resistance: Markings hold up against a wide range of chemicals, including xylene, alcohol, and DMSO, with moderate resistance to acetone. - Permanent & Reliable: The indelible black ink is smear-proof and fade-resistant, ensuring your markings remain crisp and legible through processing, staining, and storage. - Versatile Application: Ideal for writing directly on a variety of lab surfaces, including frosted or painted glass microscope slides and plastic histology cassettes. - Fine Tip for Precision: The fine tip allows for clear, precise, and detailed writing, ensuring that even small labels are easy to read. - Essential for Critical ID: An indispensable tool for histology, cytology, and other labs where permanent identification is crucial for sample tracking and workflow integrity.