This white crystalline solid is used to prepare other tetraphenylborate salts, which are often highly soluble in organic solvents. The compound is used in inorganic and organometallic chemistry as a precipitating agent for potassium, ammonium, rubidium, and cesium ions, and some organic nitrogen compounds.

Addition of sodium tetraphenylborate to a solution of a tertiary amine and an acid chloride in acetonitrile gives the acylonium salt by precipitating NaCl from the reaction mixture. This method has a broad scope

l-DOPA, also known as levodopa and l-3,4-dihydroxyphenylalanine, is an amino acid that is made and used as part of the normal biology of humans, as well as some animals and plants. 

Levodopa or dihydroxyphenylalanine (DOPA) is a large neutral amino acid (LNAA) that is the precursor for catecholamines: dopamine, norepinephrine, and epinephrine. ... The DOPA required only decarboxylation by the enzyme aromatic amino acid decarboxylase (AAAD) to be converted into dopamine.

The cell walls for gram-negative microorganisms have a higher lipid content than gram-positive cells. Originally, both kinds of cells are penetrated by the crystal violet. Iodine is subsequently added as a mordant to form the crystal violet-iodine complex so that the dye cannot be removed too easily.

man body stores creatine as phosphocreatine primarily in your muscles, where it's used for energy. 

As a result, people take creatine orally to improve athletic performance and increase musc

It is a dense, soft metal that is very resistant to corrosion and poorly conductive compared to other metals. Its density and low melting point make it useful.

Lead is still widely used for car batteries, pigments, ammunition, cable sheathing, weights for lifting, weight belts for diving, lead crystal glass, radiation protection and in some solders. It is often used to store corrosive liquids.

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Arginine plays an important role in cell division, wound healing, removing ammonia from the body, immune function, and the release of hormones. It is a precursor for the synthesis of nitric oxide (NO), making it important in the regulation of blood pressure.

L-Arginine is a basic, genetically coded amino acid that is an essential amino acid for human development. It is a precursor of nitric oxide and is synthesized by the body from ornithine. Arginine has been classified as a conditionally indispensable amino acid .

The individual amino acid solutions show evidence of oscillatory oligomerization. In the binary solution, the behavior is controlled by the dynamics of L-Pro oligomerization. A simple model involving oligomerization, formation of catalytic oligomer aggregates and cross-catalysis provides qualitative insight into the process.

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The pyridine-free Karl Fischer reagent consists of two solutions, a dissolving agent and a titrating agent. The dissolving agent contains sulfur dioxide and a pyridine substitute in a solvent and is used for taking up the sample to be investigated with respect to its water content.

The analysis of the water content of a sample by Karl Fisher titration can be carried out using a volumetric method or a coulometric one.

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Lithium sulfate is used to treat bipolar disorder (see lithium pharmacology). Lithium sulfate is researched as a potential component of ion conducting glasses. Transparent conducting film is a highly investigated topic as they are used in applications such as solar panels and the potential for a new class of battery.

LEISHMAN STAIN - Powder dye for creating dye solution for staining blood smears.

Leishman Eosin Methylene Blue dye solution: By slowly heating in water bath (40°C), dissolve 0.a

Atlas Leishman's stain is used for staining of blood and bone marrow. It is generally used to differentiate and identify leucocytes, malaria parasites, and trypanosomas (unicellar parasitic protozoa). It is based on a mixture of methylene blue and eosin.