For further processing only. Others 3 3 5 5 -Tetramethylbenzidine TMB 3,3',5,5'-Tetramethylbenzidine (TMB) 3.7.3.3.2.1 crystalline powder 10203700103 3,3'5,5'-Tetramethylbenzidine 3,3',5,5'-Tetramethylbenzidine (TMB) Reagents, kits custom fill Not Available CustomBiotech product. Please contact your local representative. Will be supplied as "3,3'5,5'-Tetramethylbenzidine". Unit of measure is "kg". 54827-17-7 en Use TMB as substrate solution for horse radish peroxidase (450 nm). en Appearance: Yellowish to light brown crystalline powder Melting range: +168 to +171°C TMB (GC): ≥99.5 area% TMB (titrimetric, based on dry weight): ≥97.5% Loss on drying (for 2 hours at +105°C): ≤1% Stability: At +2 to +8°C within specification range for 24 months. Protect from light. en