2,4-Dihydroxyacetophenone, also known as DHAP, is a high-purity chemical supplied a screw top vials.
 
As described in the MSDS, DHAP is a hazardous material that can cause skin and eye irritation, and may be harmful if ingested or inhaled. 
 
It is commonly used as a reagent in organic synthesis and as a starting material for the production of pharmaceuticals and other fine chemicals.
 
DHAP appears as a white to light yellow crystalline powder and is available in a 99% purity level.