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amine |
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amine (əmēn`, ăm`ēn): see under amino group amine. Amines are derivatives of the inorganic compound ammonia , NH3. When one, two, or all three of the hydrogens in ammonia are replaced by an alkyl or aryl group, the resulting compound is known as a primary, secondary, or tertiary amine, respectively. ..... Click the link for more information. . amineAny of a class of nitrogen-containing organic compounds derived, either in principle or in practice, from ammonia (NH3). Almost all their chemical names end in -ine. Replacement of one, two, or all three of the hydrogen atoms in ammonia with organic groups yields primary, secondary, or tertiary amines, respectively. Addition of a fourth hydrogen with an accompanying positive charge on the nitrogen atom results in a quaternary amine. Naturally occurring amines include alkaloids, present in certain plants; some neurotransmitters, including dopamine and epinephrine; and histamine. Industrially important amines include aniline, ethanolamine, and others, used in making rubber, dyes, pharmaceuticals, and synthetic resins and fibres and in a host of other applications. A nitrogen atom with one or two hydrogens is often referred to as an amino group. amine an organic base formed by replacing one or more of the hydrogen atoms of ammonia by organic groups amine [ə′mēn] (organic chemistry) One of a class of organic compounds which can be considered to be derived from ammonia by replacement of one or more hydrogens by functional groups. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Food and Drug Administration (FDA) approval to transfer production of DTPA (Diethylene Triamine Pentaacetic Acid; Tc99m Pentetate Injection) to the Company's own lyophilization production facility. Poly-oxypropyleneamine curing agents include Jeffamine D-230, D-400 and D-2000 diamines; and a triamine, Jeffamine T-403. Company's Jeffamine polyoxypropyleneamine curing agents for epoxies include Jeffamine D-230, D-400 and D-2000 diamines; and a triamine, Jeffamine T-403. |
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