indicator

As a proper noun indicator

is .

As a noun dichlorodihydrofluorescein is

(organic compound) a reduced chlorinated derivative of fluorescein whose acetate is used as an indicator of peroxynitrite formation, it being oxidized to the fluorescent dichlorofluorescein.

As a proper noun indicator

is .

As a noun thymolphthalein is

a ph indicator that can also be used to make invisible ink.

As a proper noun indicator

is .

As a noun phenolsulfonphthalein is

(organic chemistry) phenol red, a ph indicator much used in cell biology.

As a proper noun indicator

is .

As a noun thymolsulphonephthalein is

thymol blue, a brownish-green or reddish-brown crystalline powder used as a ph indicator.

As a proper noun indicator

is .

As a noun ponceau is

(chemistry) any of a number of red pigments, some of which are used as indicators.

As a proper noun indicator

is .

As a noun ferroin is

(chemistry) a coordination compound of iron and phenanthroline used as a redox indicator.