CAS Registry Number

CAS 140-22-7 — 1,5-Diphenylcarbazide

1,5-Diphenylcarbazide is a chemical reagent used primarily in analytical chemistry for the detection and quantification of heavy metals, especially chromium(VI). It forms intensely colored complexes with certain metal ions, enabling sensitive spectrophotometric analysis. Available with a CAS number of 140-22-7, molecular formula C13H14N4O, and molecular weight 242.28 g/mol. Stored at -15 to -20 °C. Signal word: Warning. Molekula supplies 1,5-Diphenylcarbazide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.