p-Phenylenediamine (PPD) is a derivative of aniline used in kevlar, hair dye and henna substitutions among other things, the derivatives of which are used in antiozonants among other horrors
p-Phenylenediamine (PPD) is an organic compound with the formula C6H4(NH2)2. This derivative of aniline is a white solid, but samples can darken due to air oxidation.It is mainly used as a component of engineering polymers and composites like kevlar. It is also an ingredient in hair dyes a
Plumbagin
Plumbagin or 5-hydroxy-2-methyl-1,4-naphthoquinone is an organic compound with the chemical formula C11H8O3. It is regarded as a toxin and it is genotoxic and mutagenic. Plumbagin is a yellow dye, formally derived from naphth
Kermes is a red dye
Kermes is a red dye derived from the dried bodies of the females of a scale insect in the genus Kermes, primarily Kermes vermilioThe Kermes insects are native in the Mediterranean region and are parasites living on the sap of the host plant, the Kermes oak (Qu