Synonym(s): 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®; Patton and Reeder's reagent
Empirical Formula: C21H14N2O7S
Linear Formula: C21H14N2O7S
Formula Weight: 438.41
MDL Number: MFCD00004078
Beilstein Registry Number: 727492
Safety Statements (Europe): 26-36
Signal Word: Warning
Hazard statements: H315-H319-H335
Precautionary statements: P261-P305 + P351 + P338