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Honokiol

Honokiol is a biphenolic compound present in the cones, bark, and leaves of Magnolia grandifloris that has been used in the traditional Japanese medicine Saiboku-to as an anxiolytic, antithrombotic, anti-depressant, anti-emetic, and anti-bacterial. While early research on the effective compounds in traditional remedies have simply used whole magnolia bark extracts, known as houpu magnolia, recent work has identified honokiol and its structural isomer magnolol as the active compounds in magnolia bark. In the late 1990s, honokiol saw a revival in western countries as a potent and highly tolerable anti-tumorigenic and neurotrophic compound.

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Hyaluronic Acid

Hyaluronan is found in many tissues of the body, such as skin, cartilage, and the vitreous humour. Hyaluronan is also used to treat osteoarthritis of the knee.It is used in surgical aid (ophthalmological).

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Hyaluronidase

Hyaluronidases are a family of enzymes that degrade hyaluronic acid.It is used for enhancing absorption and distribution of other injected drugs.It is used in medicine in conjunction with other drugs to speed their dispersion and delivery.

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Hydantoin

Hydantoin is a heterocyclic organic compound that can be thought of as a cyclic "double-condensation reaction" product of glycolic acid and urea. When hydantoin reacts with hot, dilute hydrochloric acid, glycine is one of the products. Some N-Halogenated derivatives of hydantoin are used as chlorinating or brominating agents in disinfectant/sanitizer or biocide products. Hydantoin is used as a pharmaceutical intermediate.

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Hydralazine

Hydralazine is a direct-acting smooth muscle relaxant used to treat hypertension by acting as a vasodilator primarily in arteries and arterioles. By relaxing vascular smooth muscle, vasodilators act to decrease peripheral resistance, thereby lowering blood pressure and decreasing afterload.

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Hydrastinine

Hydrastinine is a semisynthetic alkaloid from the hydrolysis of the alkaloid hydrastine, which was found naturally in small quantities in Hydrastis canadensis L. It was produced by oxidative splitting of hydrastine hydrochloride with nitric acid in good yield. The drug was patented by Bayer as a haemostatic drug during the 1910s.

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Hydrazine

Hydrazine is an inorganic compound. It is mainly used as a foaming agent in preparing polymer foams, but significant applications also include its uses as a precursor to polymerization catalysts and pharmaceuticals. Additionally, hydrazine is used in various rocket fuels and to prepare the gas precursors used in air bags. It is used within both nuclear and conventional electrical power plant steam cycles to control concentrations of dissolved oxygen in an effort to reduce corrosion. The majority use of hydrazine is as a precursor to blowing agents. It is a useful building block in organic synthesis of pesticides. It is also used as a propellant on board space vehicles, and to both reduce the concentration of dissolved oxygen in and control pH of water used in large industrial boilers.

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Hydrazine Hydrate

Hydrazine hydrate is an oxygen scavenger for water used in industrial boilers and high pressure steam generators. It is used in the production of pharmaceuticals, agricultural chemicals, and blowing agents. It can be used as polymerization catalysts, food additives, soldering fluxes and in manufacture of surfactants, detergents and plasticizer.

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Hydrazine Sulfate

Hydrazine sulfate is the salt of hydrazine and sulfuric acid. It is a chemical compound that has been used as an alternative medical treatment for the loss of appetite and weight loss which is often associated with cancer.

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