EB Request a Quote Email usinfo @ rxmarine.com DocumentsRequest MSDS / TDS Lab Chemical-60 Product code RXSOL-60-6604-539 EHRLICHS B REAGENT Request a Quote Email Us Ehrlich's reagent or Ehrlich reagent is a reagent containing p-dimethylaminobenzaldehyde (DMAB) and thus can act as an indicator to presumptively identify indoles and urobilinogen. Application Dosage