pH Indicators survey

Prod.-No.DescriptionpH RangeTransition Interval
A3865Hematoxylin0.0 - 1.red - yellow
A2388Malachite green oxalate0.0 - 2.0yellow - green-blue
A2298Brilliant green0.0 - 2.6yellow - green
A0822Eosin Y0.0 - 3.0yellow - green fluorescence
A0558Erythrosin B0.0 - 3.6orange - red
A1403Methyl green0.1 - 2.3yellow - blue
A2378Cresol red0.5 - 2.5rose - brown-yellow
A0691Crystal violet *0.8 - 2.6yellow - blue-violet
A2825Metanil yellow1.2 - 2.3red - yellow
A2478para-Xylenol blue1.2 - 2.5red - yellow
A2376m-Cresol purple1.2 - 2.8rose - yellow
A0462Thymol blue1.2 - 2.8violet - brownish
A0680Phenol red1.2 - 3.0orange - yellow
A0821Eosin B1.4 - 2.4colorless - rose fluorescence
A2322Quinaldine red1.4 - 3.2colorless - rose
A3290Dimethyl yellow3.0 - 4.0rose - brown-yellow
A2330Bromochlorophenol blue3.0 - 4.5green-yellow - blue-violet
A2331Bromophenol blue3.0 - 4.6greenish-yellow - blue-violet
A2385Congo red3.0 - 5.2violet - orange-red
A0581Methyl orange3.1 - 4.4rosa - orange-yellow
A1051Bromocresol green3.8 - 5.4yellow-green - blue
A2306Alizarin red S4.3 - 6.3slightly yellow - rose
A2392Methyl red4.5 - 6.2violet-red - brown-yellow
A2311Bromophenol red4.7 - 6.3yellow - purple
A1058Chlorophenol red4.8 - 6.4brown-yellow - red-violet
A3865Hematoxylin5.0 - 6.0light yellow - violet
A2390Lacmus (Litmus)5.0 - 8.0red - violet
A1059Bromocresol purple5.2 - 6.8greenish-yellow - blue-violet
A2309Bromoxylenol blue5.7 - 7.4yellow - blue
A2125Alizarin5.8 - 7.2yellow - red
A2340Bromothymol blue5.8 - 7.6yellow - blue
A0680Phenol red6.5 - 8.0brown-yellow - red-violet
A2378Cresol red6.5 - 8.5yellow - purple
A0683Neutral red6.8 - 8.0violet - orange-yellow
A2376m-Cresol purple7.4 - 9.3brown-yellow - red-violet
A2478para-Xylenol blue7.5 - 9.3yellow - blue
A0462Thymol blue7.8 - 9.5greenish-yellow - blue
A1132Phenolphthalein8.2 - 10.0colorless - red-violet
A1738Thymolphthalein9.0 - 10.5colorless - blue
A2306Alizarin red S9.4 - 12.0orange - violet
A2295Alizarin yellow GG10.0 - 12.1red - purple
A4466β-Naphthol violet10.6 - 12.0orange yellow - violet
A2125Alizarin 11.0 - 13.0red - purple
A2366Indigo carmine11.5 - 13.0blue - yellow
A2310Alkali blue 6B11.5 - 13.0blue - rose
A2362Epsilon blue11.6 - 13.0orange - violet
A2437Titan yellow12.0 - 13.0yellow - red

Legend

* also known as Gentian violet or Methyl violet 10 B

Please note that AppliChem offers the salts of several indicators as well. If you select Indicators or pH Indicators through our Product Search, you will find ready-to-use solutions of various indicators.