Potassium arsenate is a chemical compound of potassium and arsenic. It is derived from arsenic acid. Arsenic is a chemical element that has the symbol As and atomic number 33. It is a poisonous metalloid that has many allotropic forms: yellow (molecular non-metallic) and several black and grey forms (metalloids) are a few that are seen. Three metalloidal forms of arsenic with different crystal structures are found free in nature (the minerals arsenopyrite and the much rarer arsenolamprite and pararsenolamprite), but it is more commonly found as a compound with other elements. Potassium arsenate is used in the textile, tanning and paper industries, and as an insecticide, especially for fly paper. In medicine arsenic was the preferred treatment for syphilis for many years. It was also thought to treat malaria, leukemia, and chorea. One type of arsenic preparation that became a popular type of patent medicine of the late 1800’s on into the early 1900s’ was Fowler’s solution, which was sold as a treatment for syphilis as well as a general tonic. Fowler’s solution was not a brand of patent medicine but rather a formula containing 1% potassium arsenate, proposed by Thomas Fowler in 1786. Potassium arsenate is toxic and carcinogenic to humans.

Sodium permanganate is the inorganic compound used as oxidant and etchant in printed circuitry. Sodium permanganate is a purplish-colored, inorganic salt compound, which is primarily available in aqueous form as a monohydrate. It is miscible in water, ether, ethanol, and liquid chlorine. Sodium permanganate offers a high concentration of permanganate ions. Owing to high solubility in water, it is used for etching of plastic parts, as etching requires a high concentration of permanganate ions. Sodium permanganate is also used for water treatment and soil treatment, as it is capable of degrading phenols, BTEX, chlorinated ethenes, and PAHS and removing hydrogen sulfide.

Mephobarbital us a barbiturate derivative used primary as an anticonvulsant, but also as a sedative and anxiolytic. Marketing of mephobarbital was discontinued in 2012.

BORATE, a salt of boric acid, is used as a food additive in the European Union. This additive is authorized for use as preservatives of sturgeon eggs (caviar).

Homatropine (used in a form of bromide or methylbromide salts) is an analogue of atropine, which acts as an antagonist of muscarinic receptors. Homatropine was approved for the treatment of cough in combination with hydrocodone bitartrate.

Succinic acid is a dicarboxylic acid, which has multiple biological roles as a metabolic intermediate being converted into fumarate by the enzyme succinate dehydrogenase in complex 2 of the electron transport chain which is involved in making ATP, and as a signaling molecule reflecting the cellular metabolic state. Succinate is generated in mitochondria via the tricarboxylic acid cycle (TCA), an energy-yielding process shared by all organisms. Succinate can exit the mitochondrial matrix and function in the cytoplasm as well as the extracellular space, changing gene expression patterns, modulating epigenetic landscape or demonstrating hormone-like signaling. Dysregulation of succinate synthesis, and therefore ATP synthesis, happens in some genetic mitochondrial diseases, such as Leigh's disease, and Mela's disease and degradation can lead to pathological conditions, such as malignant transformation, inflammation and tissue injury. Succinic acid is a precursor to some polyesters and a component of some alkyd resins. Succinic acid also serves as the bases of certain biodegradable polymers, which are of interest in tissue engineering applications. As a food additive and dietary supplement, succinic acid is generally recognized as safe by the U.S. Food and Drug Administration. Succinic acid is used primarily as an acidity regulator in the food and beverage industry. It is also available as a flavoring agent, contributing a somewhat sour and astringent component to umami taste.[11] As an excipient in pharmaceutical products, it is also used to control acidity or as a counter ion. Drugs involving succinate include metoprolol succinate, sumatriptan succinate, Doxylamine succinate or solifenacin succinate.

Ethylmorphine is a derivative of morphine with analgesic and antitussive effect. It acts by activating the opioid receptors and thus has a direct influence on the CNS system. Ethylmorphine was approved in Europe for the treatment of dry cough (Codethyline, Dionine).