質Ⅰ(胸腺嘧啶)CHC5H6N2O2126.11 雜質Ⅱ(a-司他夫定) C10H12N2O4224.21 雜質Ⅲ,(胸苷)OH C10H14N2O5242.23 雜質Ⅳ, (胸苷異構體)CHOH C10H14N2O5242.23
