Vitamin B3 is one of the vitamins of the B complex. It is also called niacin. The terms niacin or vitamin B3 are generally used as generic descriptors for both nicotinic acid and nicotinamide.

Phloroglucinol, also known as 1,3,5-trihydroxybenzene, is an organic compound with the chemical formula C6H6O3. It is colorless to beige solid at room temperature and is soluble in water, ethanol, and diethyl ether.

Pyrogallol, also known as 1,2,3-trihydroxybenzene, is a white crystalline solid with the formula C6H6O3. Pyrogallol exists in the form of colorless needles or leaflets, which gradually change color to dark gray upon exposure to air or light.

1,3-Propanediol is a clear, colorless, odorless liquid that is miscible with water, alcohols, ethers, and formamide. It is sparingly soluble in benzene and chloroform.

Butanone also known as methyl ethyl ketone, MEK, is an aliphatic ketone and, next to acetone, the most important commercially produced ketone. It is a is a colorless, low-viscosity, flammable liquid with a characteristic ketone-like odor similar to that of acetone.

4-Methyl-2-pentanone is a colorless liquid with a less pronounced ketone-like odor.

3-Methyl-2-butanone is a colorless liquid with a characteristic ketone odor.

Hydroquinone, also known as 1,4-benzenediol, is a colorless crystalline solid when pure, with the chemical formula C6H4(OH)2. It is an aromatic diol (a para-isomer of catechol).

Catechol, also known as pyrocatechol or 1,2-dihydroxybenzene, is an organic compound with the molecular formula C6H4(OH)2. It is a crystalline substance with a distinctive phenolic fragrance.

Propylene glycol is a viscous, colorless liquid that is nearly odorless but has a faintly sweet taste . It is a diol with the chemical formula C3H8O2.

Methyl ethyl ketone peroxide (mekp) is a liquid chemical compound from the family of ketone peroxides that it is used to initiate the polymerization of unsaturated polyester and vinylester resins at different curing temperatures.