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Dichloromethane

Dichloromethane is an organic compound. It was first prepared in 1840 by the French chemist Henri Victor Regnault, who isolated it from a mixture of chloromethane and chlorine that had been exposed to sunlight. It is widely used as a paint stripper and a degreaser. In the food industry, it has been used to decaffeinate coffee and tea as well as to prepare extracts of hops and other flavorings. Its volatility has led to its use as an aerosol spray propellant and as a blowing agent for polyurethane foams. It is also used extensively by model building hobbyists for joining plastic components together. It is also used in the garment printing industry for removal of heat-sealed garment transfers.

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Diethanolamine

Diethanolamine is an organic compound. This colorless liquid is polyfunctional, being a secondary amine and a diol. Like other organic amines, diethanolamine acts as a weak base. It is used as a surfactant and a corrosion inhibitor. It is used to remove hydrogen sulfide and carbon dioxide from natural gas. Diethanolamides are common ingredients in cosmetics and shampoos added to confer a creamy texture and foaming action.

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Diethyl Azodicarboxylate

Diethyl azodicarboxylate is an organic compound. Its molecular structure consists of a central azo functional group, RN=NR, flanked by two ethyl ester groups. This orange-red liquid is a valuable reagent but also quite dangerous and explodes upon heating. Therefore, commercial shipment of pure diethyl azodicarboxylate is prohibited in the United States and is carried out either in solution or on polystyrene particles. It is an aza-dienophile and an efficient dehydrogenating agent, converting alcohols to aldehydes, thiols to disulfides and hydrazo groups to azo groups; it is also a good electron acceptor. While DEAD is used in numerous chemical reactions, it is mostly known as the principal component of the Mitsunobu reaction, which is daily carried out in chemical laboratories, and can be used for the synthesis of various natural products and pharmaceuticals. In particular, the resulting chemical zidovudine is a major drug against AIDS and FdUMP is a potent antitumor agent.

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Diethyl Ether

Diethyl Ether was first synthesized in 1540 by Valerius Cordus, and he termed as - sweet oil of vitriol. Diethyl ether is an extremely flammable organic solvent with many uses. Diethyl ether was one of the first anesthetics developed for surgical use, but has since been replaced by less flammable chemicals. Diethyl ether is commonly used as an industrial or laboratory solvent. It has narcotic properties and has been known to cause temporary psychological addiction, sometimes referred to as etheromania. Diethyl ether is particularly important as a solvent in the production of cellulose plastics such as cellulose acetate, fats, waxes, resins and similar substances. Diethyl ether has a high cetane number of 85-96 and is used as a starting fluid, in combination with petroleum distillates for gasoline and diesel engines. It is a common laboratory solvent. It is also a common solvent for the Grignard reaction in addition to other reactions involving organometallic reagents,liniments and analgesics (painkillers) and smokeless gun powder. It is also used in agricultural and pharmaceutical applications, as an intermediate in the preparation and manufacturing of other basic organic chemicals, as a catalyst in industrial polymerization processes, as an alternative fuel, as a foam expansion agent, and as an aerosol propellant for a variety of products that include adhesives, sealants, foam in a can, coatings, paints, automotive care products, topical skin cooling sprays, over the counter treatments, hairspray, sun screen and a variety of other personal care and household products. Diethyl ether can be prepared both in laboratories and on an industrial scale by the acid ether synthesis.

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Diiodomethane

Diiodomethane is a liquid organoiodine compound. It is used in the determination of the density of mineral and other solid samples. It is also used as a contact liquid for refractometers. It is a reagent in the Simmons-Smith reaction, serving as a source of methylene CH2.

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Diisopropylamine

Diisopropylamine is a secondary amine. It can be dried by distillation over potassium hydroxide or drying over sodium wire or sodium hydride followed by distillation under N2 into a dry receiver. Diisopropylamine is used for the synthesis of diisopropylethylamine, by reaction with diethyl sulfate.

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Dimethyl Ether

Dimethyl ether is an organic compound. This simplest ether is a colourless gas that is a useful precursor to other organic compounds and an aerosol propellant. The largest use of dimethyl ether is currently as substitute for propane in LPG used as fuel in household and industry. It is a low-temperature solvent and extraction agent, applicable to specialised laboratory procedures. Its usefulness is limited by its low boiling point, but the same property facilitates its removal from reaction mixtures. Dimethyl ether is the precursor to the useful alkylating agent, trimethyloxonium tetrafluoroborate. It is a promising fuel in diesel engines, petrol engines, and gas turbines owing to its high cetane number, which is 55, compared to diesel's, which is 40–53.

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Dimethyl Phthalate

Dimethyl phthalate is a phthalate. It is the methyl ester of phthalic acid. It is an ectoparasiticide and has many other uses, including in solid rocket propellants, plastics, and insect repellants.

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Dimethylaniline

Dimethylaniline is an organic chemical compound, a substituted derivative of aniline. It consists of a tertiary amine, featuring dimethylamino group attached to a phenyl group. It is an important precursor to dyes such as Crystal violet. It serves as a promoter in the curing of polyester and vinyl ester resins. It is also used as a precursor to other organic compounds.

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