piperazine

American  

[pi-per-uh-zeen, -zin, pahy-, pip-er-uh-] / pɪˈpɛr əˌzin, -zɪn, paɪ-, ˈpɪp ər ə- /

noun

Chemistry.

1. Also called piperazidine.  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.

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piperazine British  

/ pɪˈpɛrəˌziːn, -zɪn /

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

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piperazine Scientific  

/ pī-pĕr′ə-zēn′,pĭ- /

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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Etymology

Origin of piperazine

First recorded in 1885–90; from Latin piper pepper + azine ( def. )

Example Sentences

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

From Nature • May 2, 2018

Zhang’s trick was to add polyvinyl alcohol to the piperazine, further lowering its diffusion rate and allowing it to act as the activator to the trimesoyl chloride’s inhibitor.

From Nature • May 2, 2018

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

From Nature • Jun. 15, 2011

Add gradually ten ounces of piperazine, a pint of Harrogate water and inhale leisurely through a zoetrope.

From Punch, or the London Charivari, Volume 153, July 4, 1917 by Various

The bean is one of the noblest of vegetables and is exceptionally rich in calories, protein, casein, carbo-hydrates, thymol, hexamyl, piperazine, salicylic dioxide, and permanganate of popocatapetl.

From Punch, or the London Charivari, Vol. 159, 1920-09-01 by Various