Nameú¦ 2'-deoxy-l-thymidine (raw material of telbivudine) Nameú¦ 1-[(2s, 4r, 5s)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2, 4-dione Casú¦ 3424-98-4 Formulaú¦ c10h14n2o5 Molecular weight: 242.2296 Purity: 99%. Appearance: white crystal.