pH indicator for Polio and Rabies
vaccines
Toxicology: may be harmful by ingestion , or through
skin contact. May cause skin, eye or respiratory irritation.
http://physchem.ox.ac.uk/MSDS/PH/phenol_red.html
phenol red...
phenolsulfonphthalein
<chemical>
4,4'-(3h-2,1-benzoxathiol-3-ylidene)bisphenol s,s-dioxide. Red dye, pH indicator, and diagnostic aid for determination of renal function. It is used also for studies of the gastrointestinal and
other systems.
Pharmacological action: indicators and
reagents, phthalein
dyes.
Chemical name: Phenol,
4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis-, S,S-dioxide
(12 Dec 1998)
http://cancerweb.ncl.ac.uk/cgi-bin/omd?query=phenol+red
