DTlC-Dome Sterile (dacarbazine) is a colorless to an ivory colored solid which is light sensitive. Each vial contains 100 mg of dacarbazine, or 200 mg of dacarbazine (the active ingredient), anhydrous citric acid and mannitol. DTlC-Dome is reconstituted and administered intravenously (pH 34). DTlC-Dome is an anticancer agent. Chemically, DTlC-Dome is 5-(3, 3-dimethyl-l-triazeno)-imidazole-4-carboxamide (DTlC) with the following structural formula: