Request a Quote Email usugandachemical.com @ gmail.com DocumentsRequest MSDS / TDS Lab Chemical 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