三嗪环 CAS No.: 58909-39-0 Chemical name: 2, 5-Dihydro-6-Hydroxy-3-Mercapto-2-Methyl-5-oxo-1, 2, 4-Triazine Structure Formula: Use: A side chain of Ceftriaxone. 【质量标准】 外观:白色或类白色结晶粉末, 含量:≥98.0% 纯度:≥99.5% 熔点:≥245℃ 单一杂质:≤0.2% 水份:≤0.3%