Calcium Oxide USP (Quicklime, USP Grade) is a high-purity pharmaceutical-grade calcium oxide that complies with standards set by the United States Pharmacopeia. It is manufactured under strict quality control for medical, pharmaceutical, and controlled industrial uses.

Calcium Oxide JP refers to Calcium Oxide ($CaO$) that meets the strict quality and purity standards set by the Japanese Pharmacopoeia (JP).

While commonly known as quicklime or burnt lime, the "JP" designation indicates it is a pharmaceutical-grade or high-purity chemical intended for use in regulated industries like medicine, cosmetics, and advanced chemical manufacturing.

Calcium Oxide BP is a high-purity, strongly alkaline inorganic compound obtained by calcination of calcium carbonate. It is used mainly as an intermediate in pharmaceutical and industrial processes.

Calcium Oxide (EP Grade) refers to high-purity quicklime that complies with the standards of the European Pharmacopoeia.