Nitrazin

Nitrazin
Nazivi
IUPAC naziv
(3E)-3-[(2,4-Dinitrophenyl)hydrazono]-4-oxonaphthalene-2,7-disulfonic acid
Drugi nazivi
Nitrazinsko žuto; fenaftazin
Identifikacija
3D model (Jmol)
ChemSpider
  • [O-][N+](=O)c1ccc(c([N+]([O-])=O)c1)N/N=C3/C(=C\c2c(ccc(c2)S(=O)(=O)O)C3=O)S(=O)(=O)O
Svojstva
C16H10N4O11S2
Molarna masa 498,40 g/mol
Ukoliko nije drugačije napomenuto, podaci se odnose na standardno stanje materijala (na 25 °C [77 °F], 100 kPa).
Зелена квачицаДа verifikuj (šta je Зелена квачицаДаRed КрстићНе ?)
Reference infokutije

Nitrazin (fenaftazin) je pH indikatorska boja.

Nitrazinski test

U obliku dinatrijumske soli, on se koristi u trakama za pH testiranje u medicinskoj praksi. Test se koristi za određivanje vaginalnog pH tokom kasnog perioda trudnoće radi određivanja otvaranja amnionske kese.[3] Dok je vaginalni pH normalno kiseo, pH iznad 7.0 može da služi kao indikacija cepanja amnionske kese.[4] Međutim, povišeni pH isto tako može da bude posledica bakterijske vaginoze.[5]

On se takođe koristi u građevinarstvu za određivanje raspodele karbonacije u betonskim strukturama i stoga za utvrđivanje stanja pasivacionog filma armature. On je senzitivniji od lakmus papira. Nitrazin daje pH indikaciju u opsegu od 4.5 do 7.5.

Reference

  1. ^ Li Q, Cheng T, Wang Y, Bryant SH (2010). „PubChem as a public resource for drug discovery.”. Drug Discov Today. 15 (23-24): 1052—7. PMID 20970519. doi:10.1016/j.drudis.2010.10.003.  уреди
  2. ^ Evan E. Bolton; Yanli Wang; Paul A. Thiessen; Stephen H. Bryant (2008). „Chapter 12 PubChem: Integrated Platform of Small Molecules and Biological Activities”. Annual Reports in Computational Chemistry. 4: 217—241. doi:10.1016/S1574-1400(08)00012-1. 
  3. ^ Erdemoglu E, Mungan T (2004). „Significance of detecting insulin-like growth factor binding protein-1 in cervicovaginal secretions: comparison with nitrazine test and amniotic fluid volume assessment”. Acta Obstet Gynecol Scand. 83 (7): 622—6. PMID 15225185. doi:10.1111/j.0001-6349.2004.00343.x. 
  4. ^ „Nitrazine paper”. Архивирано из оригинала 16. 10. 2013. г. Приступљено 21. 12. 2011. 
  5. ^ Sobel JD, Nyirjesy P, Kessary H, Ferris DG (2009). „Use of the VS-sense swab in diagnosing vulvovaginitis”. J Womens Health (Larchmt). 18 (9): 1467—70. PMID 19743911. doi:10.1089/jwh.2008.1305. 

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