Basic Yellow 40 Powder PF15013 | Rocky Mountain Reagents

Basic Yellow 40 Powder Features

Formulated for precision latent print enhancement, the Basic Yellow 40 Powder delivers exceptional fluorescent capabilities. Used by forensic professionals, this high-purity dye binds selectively to cyanoacrylate-fumed residues on non-porous surfaces. The compound produces a brilliant yellow-green fluorescence when exposed to alternate light sources. Investigators rely on this specific formulation to maximize contrast on dark, multicolored, or heavily patterned evidence.

Engineered for laboratory customization, the dry powder format allows technicians to formulate specific working solutions based on operational needs. By mixing the dye with appropriate carrier solvents, examiners can control the exact concentration of the fluorescent stain. When integrated into standard operating procedures, this flexibility ensures court-admissible visual enhancements across a wide variety of challenging substrates. The fine particulate structure dissolves readily into standard forensic solvent mixtures.

To prevent sample degradation, the prepared liquid solution should be applied carefully to avoid washing away fragile, fumed friction ridges. Maintaining strict control over the application process keeps the active fluorophores firmly attached to the targeted print. For optimal laboratory safety, preparation and mixing should always occur within a certified fume hood. Technicians must utilize appropriate personal protective equipment to prevent inhalation of the fine dust.

Available Sizes and Configurations

Technical Specifications

Laboratory Applications

For high-throughput forensic environments, integrating this fluorescent dye is critical after the initial superglue fuming sequence. Crime scene investigators rely on this step when processing items like aluminum cans, plastic bottles, or dark firearms. Because it selectively adheres to the cyanoacrylate polymer, the solution is highly valuable when standard dusting powders fail. Extracting usable intelligence from these complex surfaces requires a dye that reacts strongly to targeted wavelengths.

When processing fumed evidence, the prepared working solution is typically applied via complete submersion or a controlled wash. Technicians gently rinse the item with a clearing solvent to remove excess background fluorescence before examining it in a darkened room. Upon achieving the desired ridge contrast, the evidence is photographed using specific barrier filters. This critical documentation step ensures the capture of the highest possible resolution of the print.

Forensic Reagent Comparison: Why Choose Rocky Mountain Reagents?

Academic and Institutional Pricing

LabSupplies.com offers tiered quantity pricing for academic and research institutions. As an authorized dealer, we ship directly from USA inventory.

Frequently Asked Questions

What is Basic Yellow 40 Powder used for?

This specialized forensic dye is used to enhance latent fingerprints that have been previously developed with cyanoacrylate (superglue) fuming. It produces a bright yellow-green fluorescence under UV or alternate light sources, allowing examiners to photograph ridge details on difficult, multicolored, or dark non-porous surfaces.

Does this powder need to be mixed with a solvent?

Yes, this product is a dry powder and must be dissolved into a compatible carrier solvent system before application to any evidence. Technicians must follow validated laboratory protocols, typically involving ethanol or methanol, to create the correct working solution strength for their specific needs.

What sizes are available for this reagent?

LabSupplies.com provides this raw fluorescent powder in a convenient 25 g package. This configuration provides laboratories with ample raw material to mix numerous batches of working solutions, significantly reducing overall chemical costs while maximizing the shelf life of the unmixed dye.

Product Documentation

• 📄 Download Safety Data Sheet (SDS)
• 📄 Download Sample Certificate of Analysis (COA)