Nicarbazin CAS NO 330-95-0 Inquire about Nicarbazin

Tecoland supplies Nicarbazin bulk active pharmaceutical ingredient (API) to the pharmaceutical industry. Our Nicarbazin is manufactured by cGMP compliant facility. Welcome to contact us for further details including current DMF status for the product and up to date regulatory status of the manufacturing facility. We look forward to assisting you with your research and development projects.

What is Nicarbazin

Nicarbazin is a coccidiostat used on meat chickens. It is also used as a contraceptive for population control of Canada geese and feral pigeons.

It is also a wide-spectrum anti-parasitic drug approved for veterinary use, effective on Toxocara canis, Toxascaris leonina, Ancylostoma caninum, Uncinaria stenocephala, Trichuris vulpis, Dipylidium caninum, and Taenia sp. and Mesocestoides sp.

From the chemical point of view, nicarbazin is an equimolar complex formed by 1,3 – bis (4- nitrophenyl) urea and 4-6 dimethyl-2- (1H) – pyrimidinone also called 4,4′-dinitrocarbanilide (DNC) and 2-hydroxy – 4,6 dimethylpyrimidine (HDP).

The DNC represents the biologically active part of the complex, but to be absorbed it must be bound to the HDP.[8] Because of its hydrophobic nature, the DNC alone is poorly absorbed and has a limited “biological availability” so, following oral administration, it would be eliminated without being absorbed. The DNC therefore requires HDP to be absorbed and to reach a plasma level that allows an effect in the target species.

Following oral administration, nicarbazin rapidly dissociates in vivo into its two HDP and DNC components, which follow different routes of excretion: 95% of HDP is rapidly eliminated with urine, while DNC remains longer and is eliminated predominantly with feces.

Metabolism and depletion of the two components have been studied extensively with the use of carbon-14-labeled nicarbazin. Following oral administration, nicarbazin rapidly dissociates in vivo into its two components HDP and DNC, which are absorbed through the intestine, then passing into the blood, and following different routes of excretion. The HDP is excreted more rapidly than the DNC, mainly through the kidneys via the urine, while the DNC is absorbed more rapidly than the HDP and is excreted more slowly than the latter through the liver, via the faeces. No significant residue of either component is noticeable in any fabric after 7 days. DNC accumulates in eggs and normally the concentration of DNC in eggs is less than 5 ppm.

The two components HDP and DNC do not undergo metabolism in vivo and in vitro, except for the formation of derivatives structurally similar to nitroaniline. However, this possibility appears extremely remote, achievable only in the laboratory, in particular chemical-physical conditions (high temperature in a strongly acid environment).

Of the two components of the nicarbazin molecule, the DNC takes on a significance from a toxicological point of view as it remains longer in the body. The DNC molecule was therefore considered as a marker compound in residue studies.

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