亚洲网紅露点

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piperazine

[ pi-per-uh-zeen, -zin, pahy-, pip-er-uh- ]

noun

Chemistry.
  1. Also called 辫颈辫路别谤路补锄路颈路诲颈苍别 [pip-, uh, -, raz, -i-deen, -din, pahy-p, uh, -]. a colorless, crystalline, deliquescent ring compound, C 4 H 1 0 N 2 , prepared by the reaction of ethylene bromide or ethylene chloride with ammonia: used chiefly in veterinary medicine as an anthelmintic, and as an insecticide.
  2. any derivative of this compound.


piperazine

/ p瑟藞p蓻r蓹藢zi藧n; -z瑟n /

noun

  1. a white crystalline deliquescent heterocyclic nitrogen compound used as an insecticide, corrosion inhibitor, and veterinary anthelmintic. Formula: C 4 H 10 N 2
鈥淐ollins English Dictionary 鈥 Complete & Unabridged鈥 2012 Digital Edition 漏 William Collins Sons & Co. Ltd. 1979, 1986 漏 HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

piperazine

  1. A colorless crystalline compound used as a hardener for epoxy resins, as an antihistamine, and as an agent for expelling or destroying parasitic intestinal worms. Piperazine belongs to the class of chemicals called pyrazines. Chemical formula: C 4 H 10 N 2 .
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亚洲网紅露点 History and Origins

Origin of piperazine1

First recorded in 1885鈥90; from Latin piper pepper + azine ( def )
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Example Sentences

Examples have not been reviewed.

In a conventional process, trimesoyl chloride diffuses faster than piperazine, but the difference is not big enough to produce a Turing structure.

From

Derivatives of piperazine are often sold as ecstasy.

From

One of the starting materials, piperazine hexahydrate, some of which can make it into the final product, is extremely toxic to the liver.

From

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