C 1535
2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3-naphthoic acid, 3-Hydroxy-4-(2-hydroxy-4-sulfo-1-naphthylazo)naphthalene-2-carboxylic acid, Cal-Red
3737-95-9
AR / GR
C21H14N2O7S.2H2O
29270090
474.44
Bottle / Drum
18%
Calconcarboxylic acid - is an azo dye and complexometry indicator used for complexometric titrations calcium concentration determination.
C 1535 (OTTO) Calconcarboxylic acid, GR Cas 3737-95-9 - used indicator for calcium titrations with EDTA in the presence of magnesium. It is also required for the staining of proteins in gels.
Hematology & histology
Powder
Dark green to Black
300 °C
Precautionary statements P261-P305 + P351 + P338Personal Protective Equipment dust mask type N95 (US), Eyeshields, GlovesWGK Germany 3
12298-68-9
72-48-0
4395-65-7
573-58-0