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Malononitrile is a nitrile compound.It is a suitable starting material for the Gewald reaction.It is an important building block for the syntheses of pharmaceuticals, pesticides, dyestuffs for color photography and synthetic fibers.

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Meclofenoxate is a drug used to treat the symptoms of senile dementia and Alzheimer's disease. It is an ester of dimethylethanolamine and 4-chlorophenoxyacetic acid. In elderly patients, it has been clinically shown to improve memory, have a mentally stimulating effect, and improve general cognition. It also increases cellular membrane phospholipids. It is also used off-label as a nootropic, often combined with a racetam drug such as piracetam.


Menatetrenone is a menaquinone compound used as a hemostatic agent and as adjunctive therapy for the pain of osteoporosis. It is also known as vitamin K2, but there are several menaquinone forms that are also referred to as vitamin K2. Menatetrenone is just one of nine forms.

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Methoxetamine is a chemical of the arylcyclohexylamine class which has been sold as a designer drug. It is a derivative of ketamine that also contains structural features of eticyclidine and 3-MeO-PCP. Methoxetamine is thought to behave as a NMDA receptor antagonist and dopamine reuptake inhibitor, though it has not been formally profiled pharmacologically. Methoxetamine differs from many other dissociative anesthetics of the arylcyclohexylamine class in that it was designed for grey market distribution. Methoxetamine is a product of rational drug design: its N-ethyl group was chosen to increase potency.

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Methylparaben is an anti-fungal agent often used in a variety of cosmetics and personal-care products. Methylparaben is also used as a food preservative and has the E number E218.

Niflumic Acid

Niflumic acid is a drug used for joint and muscular pain. It is categorized as an inhibitor of cyclooxygenase-2. It has an activity to treat inflammatory rheumatoid diseases and relieve acute pain. It is effective against period pains, pain after surgery, and fever.

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Nitroglycerin is used in the treatement of angina pectoris and perioperative hypertension.

Nitrous Oxide

Nitrous oxide is an oxide of nitrogen. It is used in surgery and dentistry for its anesthetic and analgesic effects. It is known as "laughing gas" due to the euphoric effects of inhaling it, a property that has led to its recreational use as a dissociative anesthetic. It is also used as an hybrid oxidizer in rocketry and in motor racing to increase the power output of engines. At elevated temperatures, nitrous oxide is a powerful oxidizer similar to molecular oxygen.

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Nortetrazepam is a drug which is a benzodiazepine derivative.


Nortriptyline is a tricyclic antidepressant. It affects chemicals in the brain that may become unbalanced.Nortriptyline is used to treat symptoms of depression.

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