An extremely sensitive amino acid reported to develop 46% more latents than DFO. The consistency and quality make this the best in the industry. 1,2-Indanedione is an extremely sensitive amino acid reagent which develops latent fingerprints similar to D.F.O. Developed prints may be enhanced with the Zinc Chloride HFE-7100 mixture and visualized under green ALS light (~530 nm) with orange or red filtration. Always wear a respirator and protective clothing. 100 ml HFE - Based 12 month shelf life.