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Maleic Acid

Maleic acid is an organic compound that is a dicarboxylic acid, a molecule with two carboxyl groups. It is the cis isomer of butenedioic acid. It is used in the preparation of fumaric acid by catalytic isomerization. It is also used as an oil and fat preservative and food acidulant.

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Methylamine is the organic compound. This colourless gas is a derivative of ammonia, where in one H atom is replaced by a methyl group. It is the simplest primary amine. It has a strong odor similar to fish. Methylamine is used as a building block for the synthesis of many other commercially available compounds. Representative commercially significant chemicals produced from methylamine include the pharmaceuticals ephedrine and theophylline, the pesticides carbofuran, carbaryl, and metham sodium, and the solvents N-methylformamide and N-methylpyrrolidone. The preparation of some surfactants and photographic developers require methylamine as a building block. Liquid methylamine can be used as a solvent analogous to liquid ammonia. It can also be used for scavenging H2S from hydrocarbon in refining applications.

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Neocuproine is a heterocyclic organic compound and chelating agent. Phenanthroline ligands were first published in the late 19th century, and the derivatives substituted at the 2 and 9 positions are among the most studied of the modified phenanthrolines. Neocuproine has also been discovered to have properties that cause fragmentation and disappearance of the melanin in adult zebrafish melanocytes. Those expressing eGFP also have been observed to lose eGFP fluorescence in the presence of neocuproine.

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Nitric Acid

Nitric acid is commonly used as a strong oxidizing agent. The main use of nitric acid is for the production of fertilizers. Other important uses include etching and dissolution of metals, especially as a component of aqua regia for the purification and extraction of gold, and in chemical synthesis. It has been used in various forms as the oxidizer in liquid-fueled rockets.

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Oxalic Acid

Oxalic acid is a dicarboxylic acid. It's main applications include cleaning or bleaching, especially for the removal of rust. About 25% of produced oxalic acid is used as a mordant in dyeing processes. It is used in bleaches, especially for pulpwood.

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Picric Acid

Picric acid is one of the most acidic phenols. It has found some use in organic chemistry for the preparation of crystalline salts of organic bases for the purpose of identification and characterization. In metallurgy a picric acid etch has been commonly used in optical metallography to reveal prior austenite grain boundaries in ferritic steels. The hazards associated with picric acid has meant it has largely been replaced with other chemical etchants. Much less commonly, wet picric acid has been used as a skin dye or temporary branding agent. It reacts with proteins in the skin to give a dark brown color that may last as long as a month. Picric acid was stocked in pharmacies as an antiseptic and as a treatment for burns, malaria, herpes, and smallpox.

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Pyridine-D5 is a solvent for 1H NMR spectroscopy.

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Tetradecane is a higher alkane. Higher alkanes are alkanes having nine or more carbon atoms.Hexadecane upwards form the most important components of fuel oil and lubricating oil. In latter function they work at the same time as anti-corrosive agents, as their hydrophobic nature means that water cannot reach the metal surface. Many solid alkanes find use as paraffin wax.

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acetic acid

Acetic acid is an organic acid that gives vinegar its sour taste and pungent smell. It is a weak acid, in that it is only a partially dissociated acid in an aqueous solution. It is an important chemical reagent and industrial chemical, used in the production of polyethylene terephthalate mainly used in soft drink bottles; cellulose acetate, mainly for photographic film; and polyvinyl acetate for wood glue, as well as synthetic fibres and fabrics. In households, diluted acetic acid is often used in descaling agents. It is also used as a food additive.


m-Toluidine can be used as analytical reagent, but also for the organic and synthetic dyes. Inadditionally it can be used as cationic dyes, color film reagent intermediates.

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