Molybdic acid refers to hydrated forms of molybdenum trioxide. There is no information related to the biological and pharmacological application of molybdic acid. It is known, that this substance is used as heterogeneous catalysts.

Gold trichloride is used as a catalyst in synthesis of new compounds. It was shown that gold trichloride was not the marker of contact allergy and could not be recommended in patch testing.

Elaidic acid is the 9-trans isomer of oleic acid. It is a monounsaturated trans-fatty acid, which can be found in partially hydrogenated cooking oils. It was revealed, that elaidic acid inhibits HHT and HETE formation in human platelets incubated with arachidonic acid. Also was shown, that trans oleic acid increased plasma CETP activity, which increases low-density lipoprotein (LDL) cholesterol and decreases high-density lipoprotein (HDL).

Hydrobromic acid is a useful reagent for generating organobromine compounds. It was shown that hydrobromic acid could initiate or exacerbate inflammatory pulmonary disease.

Hypophosphite is a strong reducing agent, that has been used in the 1850s as a remedy for pulmonary tuberculosis. Hypophosphites were used extensively in pharmaceutical preparations, elixirs, and tonics. Hypophosphite does not appear to have adverse toxicological effects, and the sodium, calcium, and potassium salts are considered GRAS. Hypophosphite use in foods may not be limited to one function. Hypophosphites have been used in foods as antioxidants, stabilizers, meat pickling accelerator, and vegetable protein flow inducer.

HYDROCHLORIC ACID is formed by dissolving hydrogen chloride gas in water. It is a strong corrosive acid that is commonly used as a laboratory reagent. Also, it constitutes the majority of gastric acid, the human digestive fluid. Skin contact with HYDROCHLORIC ACID can cause redness, pain, and severe skin burns. It may cause severe burns to the eye and permanent eye damage.

Sulfites are compounds that contain the sulfite ion. The sulfite ion is the conjugate base of bisulfite. Although its acid is elusive, its salts are widely used. Sulfite is used in the photography industry to protect developing solutions from oxidation, in the pulp and paper industry, in water treatment as an oxygen scavenger agent, as a desulfurizing and dechlorinating agent in the leather industry and as a bleaching agent in textile industry. Sodium sulfite is a component in many pharmaceuticals, which is effective to maintain the potency and stability of drugs. It is added to a number of drug preparations as an antioxidant and antimicrobial agent. Sulfite is used as a food preservative. Topical, oral or parenteral exposure to sulphites has been reported to induce a range of adverse clinical effects in sensitive individuals, ranging from dermatitis, urticaria, flushing, hypotension, abdominal pain and diarrhoea to life-threatening anaphylactic and asthmatic reactions. Exposure to the sulphites arises mainly from the consumption of foods and drinks that contain these additives; however, exposure may also occur through the use of pharmaceutical products, as well as in occupational settings. Sulfite is accepted for use as a food additive in Europe. Sodium sulfite is generally recognized as safe by FDA. It is included in FDA Inactive Ingredients Database (epidural, IM, IV, and SC injections; inhalation solution; ophthalmic solutions; oral syrups and suspensions; otic solutions; topical creams and emulsions). Included in nonparenteral medicines licensed in the UK.

Ammonium dihydrogen arsenate is an inorganic compound that has been considered a potential electro-optic material and has been explored by a number of investigators for modulation purposes. Ammonium arsenate is a cancerogenic substance.