quinaldine red

quin·al·dine red

(kwin'al-dēn red),
A styrene-quinolinium iodide; used as a pH indicator (turns red at pH 3.2) in a 1% ethanol solution.
References in periodicals archive ?
Dyed polymer films, with two different polymer PVA or PVB and quinaldine red (QR) were examined, these films are useful as routine high-dose dosimeters.
Eid, Investigation of Dyed Film Based on Quinaldine Red Dyed Poly(Vinyl Alcohol) and Poly(Vinyl Butyral) for High Dose Dosimetry Applications.