Temozolomide (CAS 85622-93-1) is a high-potency oral alkylating anticancer API, featuring a unique mechanism that crosses the blood-brain barrier to exert targeted cytotoxic effects on malignant cells. Its molecular structure undergoes spontaneous hydrolysis at physiological pH to release an active metabolite, which alkylates DNA and induces tumor cell apoptosis. Produced under strict GMP-certified processes, it ensures ultra-high purity, consistent bioactivity, and compliance with global oncology drug quality standards.