Nitarsone

Last updated
Nitarsone
Nitarsone.svg
Names
Preferred IUPAC name
(4-Nitrophenyl)arsonic acid
Other names
(p-Nitrophenyl)arsonic acid; 4-Nitrobenzenearsonic acid
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.002.451 OOjs UI icon edit-ltr-progressive.svg
PubChem CID
UNII
  • InChI=1S/C6H6AsNO5/c9-7(10,11)5-1-3-6(4-2-5)8(12)13/h1-4H,(H2,9,10,11)
    Key: FUUFQLXAIUOWML-UHFFFAOYSA-N
  • InChI=1/C6H6AsNO5/c9-7(10,11)5-1-3-6(4-2-5)8(12)13/h1-4H,(H2,9,10,11)
    Key: FUUFQLXAIUOWML-UHFFFAOYAA
  • O=[N+]([O-])c1ccc(cc1)[As](=O)(O)O
Properties
C6H6AsNO5
Molar mass 247.038 g·mol−1
Melting point 298–300 °C (568–572 °F; 571–573 K) (decomposes)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Nitarsone is an organoarsenic compound that is used in poultry production as a feed additive to increase weight gain, improve feed efficiency, and prevent histomoniasis (blackhead disease). [1] It is marketed as Histostat by Zoetis. [2]

Nitarsone once was one of four arsenical food-animal drugs—along with roxarsone, arsanilic acid, and carbarsone—approved by the U.S. Food and Drug Administration for use in feeding poultry. [3] However, following the suspension of sales of roxarsone in the United States in 2011, nitarsone was thought to be the only arsenical animal drug actually marketed in the U.S. [3] [4] In September 2013, the FDA announced that Zoetis and Fleming Laboratories agreed to voluntarily withdraw from using roxarsone, arsanilic acid, and carbarsone, which left nitarsone as the only arsenical approved in the U.S. for use in food animals. [5] But in 2015, the FDA also withdrew approval of nitarsone in animal feeds, effective at the end of 2015. [6]

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<span class="mw-page-title-main">Arsanilic acid</span> Chemical compound

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<span class="mw-page-title-main">Roxarsone</span> Chemical compound

Roxarsone is an organoarsenic compound that has been used in poultry production as a feed additive to increase weight gain and improve feed efficiency, and as a coccidiostat. As of June 2011, it was approved for chicken feed in the United States, Canada, Australia, and 12 other countries. The drug was also approved in the United States and elsewhere for use in pigs.

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<span class="mw-page-title-main">Carbarsone</span> Chemical compound

Carbarsone is an organoarsenic compound used as an antiprotozoal drug for treatment of amebiasis and other infections. It was available for amebiasis in the United States as late as 1991. Thereafter, it remained available as a turkey feed additive for increasing weight gain and controlling histomoniasis.

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<span class="mw-page-title-main">Histomoniasis</span> Medical condition

Histomoniasis is a commercially significant disease of poultry, particularly of chickens and turkeys, due to parasitic infection of a protozoan, Histomonas meleagridis. The protozoan is transmitted to the bird by the nematode parasite Heterakis gallinarum. H. meleagridis resides within the eggs of H. gallinarum, so birds ingest the parasites along with contaminated soil or food. Earthworms can also act as a paratenic host.

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References

  1. U.S. Food and Drug Administration. "Animal Drugs @ FDA".
  2. Zoetis. "Histostat: Type A Medicated Feed Article".
  3. 1 2 U.S. Food and Drug Administration (June 8, 2011). "Questions and Answers Regarding 3-Nitro (Roxarsone)".
  4. Sabrina Tavernise (May 11, 2013). "Study Finds an Increase in Arsenic Levels in Chicken". New York Times .
  5. U.S. FDA (September 20, 2011). "FDA Response to Citizen Petition on Arsenic-based Animal Drugs".
  6. U.S. Food and Drug Administration (April 1, 2015). "FDA Announces Pending Withdrawal of Approval of Nitarsone".