Chlorine dioxide is used in drinking water to control tastes and odors associated with algae and decaying vegetation. It can inactivate the fungal spores in groundwater by the damaging of the cell wall and cell membrane in fungal spores, causing the leakage of intracellular substances and death of a fungal spore. Chlorine dioxide aids in relieving pain after wisdom tooth removal and enhances the healing process following oral surgical procedures. It was shown, that the stabilized chlorine dioxide paste-rinse combination could have greater efficacy than the phenol related rinse regimen.

Lufenuron is used to fight fungal infections, since fungus cell walls are about one third chitin. Lufenuron is the active ingredient in the veterinary flea control medication Program. FDA approved this drug for use in dogs and cats. Available by prescription. Once the female flea ingests blood from a pet treated with lufenuron, 96% of egg development from fleas on cats and 99% of egg development from fleas on dogs is stopped. This helps prevent a continual flea problem. Lufenuron does not kill the adult flea and does not stop the flea from biting and causing flea allergy dermatitis. The drug is stored in the body fat and released into the bloodstream over the course of a month. Flea eggs laid prior to treating the pet may take several months to hatch; Program will not be effective until these fleas start to lay eggs. Therefore it may take several months to see the product's effectiveness. If quicker results are needed, use a product which will kill adult fleas; these will provide quicker relief for the pet. Cats require a higher dose per pound than dogs. After the cat injectable form is administered, 2-3 weeks are needed to reach therapeutic levels in the blood. The injectable form for cats is effective for 6 months.

Myristyl Alcohol is a fatty alcohol used as an emollient in cosmetics and skin care products also serve as a basic component and solubility aid in metalworking fluids. Contact sensitization to myristyl alcohol has been reported, mostly in case reports or small test series, in patients with contact dermatitis due to cosmetics or medical ointments. 1-Tetradecanol may be prepared by the hydrogenation of myristic acid (or its esters); myristic acid itself can be found in nutmeg (from where it gains its name) but is also present in palm kernel oil and coconut oil and it is from these that the majority of Myristyl Alcohol is produced. Myristyl Alcohol may also be produced from petrochemical feedstocks via either the Ziegler process or hydroformylation.

Selenium (Se) is mineral that is found in soil and occurs naturally in certain foods (such as whole grains, Brazil nuts, sunflower seeds, and seafood). Selenium, which is nutritionally essential for humans, is a constituent of more than two dozen selenoproteins that play critical roles in reproduction, thyroid hormone metabolism, DNA synthesis, and protection from oxidative damage and infection. Selenium is used to treat or prevent selenium deficiency. Selenium deficiency produces biochemical changes that might predispose people who experience additional stresses to develop certain illnesses. For example, selenium deficiency in combination with a second stress (possibly a viral infection) leads to Keshan disease, a cardiomyopathy that occurred in parts of China prior to a government-sponsored selenium supplementation program that began in the 1970s. Before the Chinese government supplementation program, adults in the Keshan disease areas had average selenium intakes of no more than 11 mcg/day; intakes of at least 20 mcg/day protect adults from Keshan disease. Selenium has been used in alternative medicine as an aid to treat Hashimoto's thyroiditis, and to treat high cholesterol. Selenium is an important enzyme in the prevention of cellular damage by free radicals and reactive oxygen species. Selenium is first metabolized to selenophosphate and selenocysteine. Selenium incorporation is genetically encoded through the RNA sequence UGA. This sequence is recognized by RNA ste loop structures called selenocysteine inserting sequences (SECIS). These structures require the binding of SECIS binding proteins (SBP-2) to recognize selenocystiene. The specialized tRNA is first bound to a serine residue which is then enzymatically processed to a selylcysteyl-tRNA by selenocystiene sythase using selenophosphate as a selenium donor. Other unidentified proteins are required as part of the binding of this tRNA to the ribosome. Numerous studies in animal models and more recent studies in humans have demonstrated cancer chemopreventive effects with Se. There is extensive evidence that monomethylated forms of Se are critical metabolites for chemopreventive effects of Se. Induction of apoptosis in transformed cells is an important chemopreventive mechanism. Apoptosis can be triggered by micromolar levels of monomethylated forms of Se independent of DNA damage and in cells having a null p53 phenotype. Cell cycle protein kinase cdk2 and protein kinase C are strongly inhibited by various forms of Se. Inhibitory mechanisms involving modification of cysteine residues in proteins by Se have been proposed that involve formation of Se adducts of the selenotrisulfide (S-Se-S) or selenenylsulfide (S-Se) type or catalysis of disulfide formation. Selenium may facilitate reactions of protein cysteine residues by the transient formation of more reactive S-Se intermediates. A novel chemopreventive mechanism is proposed involving Se catalysis of reversible cysteine/disulfide transformations that occur in a number of redox-regulated proteins, including transcription factors. A time-limited activation mechanism for such proteins, with deactivation facilitated by Se, would allow normalization of critical cellular processes in the early stages of transformation. Randomized controlled trials of selenium supplementation for cancer prevention have yielded conflicting results. In 2003, the FDA allowed a qualified health claim on foods and dietary supplements containing selenium to state that while “some scientific evidence suggests that consumption of selenium may reduce the risk of certain forms of cancer… FDA has determined that this evidence is limited and not conclusive”. Selenium is available in multivitamin/multimineral supplements and as a stand-alone supplement, often in the forms of selenomethionine or of selenium-enriched yeast (grown in a high-selenium medium) or as sodium selenite or sodium selenate.

Dichlorobenzyl alcohol has broad-spectrum activity as an antimicrobial agent and is used in cosmetics and pharmaceuticals. Dichlorobenzyl alcohol has antimicrobial effect against 115 strains of dental plaque. Dichlorobenzyl alcohol inhibited growth of microorganisms but showed highest activity against A. actinomycetemcomitans and Por. gingivalis, organisms related to juvenile and destructive forms of periodontitis. It is a common ingredient in throat lozenges such as Neo angin, Strepsils, Lorsept, and Gorpils. A throat lozenge containing amyl meta cresol and dichlorobenzyl alcohol has a direct virucidal effect on respiratory syncytial virus, influenza A and severe acute respiratory syndrome coronavirus (SARS-CoV).

Diethylhexyl phthalate (Di-2-ethylhexyl phthalate, DEHP), the most frequently occurring plasticiser in medical equipment manufactured from polymers of vinyl chloride, forms about 40% w/w of tubes and containers used for storing blood and for haemodialysis. The plasticiser leaches out into liquids with lipid contents, although it is very sparingly soluble in purely aqueous solutions. On infusion of 2-3 1 of stored blood, up to 200 mg DEHP may be transferred to the patient, while much higher quantities may be given during dialysis, which is moreover often repeated frequently over long periods. The acute toxicity of DEHP is very low (greater than 20 g/kg as LD50 in rats), and the ester is rapidly metabolised to products which are excreted in the urine and bile; chronic toxicity from the levels of dosage obtaining is thus very improbable. Carcenogenicity has never been demonstrable in animals, while teratological effects are of a very low order. The uses of DEHP fall into two major categories: polymer uses (e.g. consumer products such as footwear, shower curtains and toys, medical devices and commercial/industrial uses) and non-polymer uses (e.g. dielectric fluids, paints, adhesives and inks). Non-polymer uses represent less than 5% of the total DEHP used in the USA. Approximately 45% of total consumption of DEHP in the USA is for plasticizing various industrial and commercial products. Industrial and commercial uses of DEHP include resilient flooring, wall covering, roofing, aluminium foil coating/laminating, paper coating, extrudable moulds and profiles, electronic component parts, and wire and cable coating and jacketing. Medical devices comprise approximately 25% of total manufacturing use of DEHP in the USA. Medical devices that contain DEHP include PVC sheet materials such as intravenous bags, and tubing used in a variety of medical applications.

Trichlorofluoromethane, also known as freon-11, was used as propellant and refrigerant. Its production was banned because of the destroying of the ozone layer and contribution to the formation of the so-called ozone hole. Today, trichlorofluoromethane is obtained during recycling processes of waste cooling devices, traded on the black market, and according to recent findings still illegally manufactured.

Benzenesulfonic acid (conjugate base benzenesulfonate) is the simplest aromatic sulfonic acid, that is soluble in water and ethanol, slightly soluble in benzene and insoluble in nonpolar solvents like diethyl ether. Benzenesulfonic acid was first obtained, together with diphenyl sulfone, by E. MITSCHERLICH in 1834 by heating benzene with fuming sulfuric acid. The industrially important reaction of benzenesulfonic acid with alkali hydroxide to form phenol (alkali fusion) was developed by A. WURTZ and A. KEKUL_e in 1867 and by P. O. DEGENER in 1878. Until the early 1960s benzenesulfonic acid was used chiefly in the manufacture of phenol. Benzenesulfonic acid has the characteristic reactions of a strong aromatic sulfonic acid. Acid hydrolysis at 175 C splits it into benzene and sulfuric acid. Additional sulfonation with fuming sulfuric acid gives 1,3-benzenedisulfonic acid, which reacts further to 1,3,5-benzenetrisulfonic acid, and also diphenyl sulfone disulfonic acid. Benzenesulfonic acid is used as an acid catalyst. The sodium salt is used to standardize dyes. A variety of pharmaceutical drugs are prepared as benzenesulfonate salts and are known as besilates (INN) or besylates (USAN).