IODODEOXYURIDINE NSC - 39661 SMILE String: O=c1n(cc(I)c(=O)[nH]1)[CH]1O[CH]([CH](C1)O)CO Chemical Name: 2'-Deoxy-5-iodouridine Other Names: Idoxuridine (USAN); 5-IUdR CAS Registry Number: 54-42-2 Molecular Formula: C9H11IN2O5 M.W.: 354.1 Approximate Solubility: (mg/mL) 0.1 N NaOH 30 0.1 N HCL 2 H2O Stability: Bulk: No changes were found in material stored at room temperature and at 60 ° C for 28 days. Solution: An aqueous solution (2 mg/mL) shows no decomposition after 24 hours at room temperature (UV and paper chromatography). Ultraviolet Absorption: (Water) maX 288 ± 2 nm E = 7,500 - 7,800 High Performance Liquid Chromatography: Column: 4.6 mm i.d. x 25 cm Alltech Spherisorb S5 ODS Mobile Phase: 2% CH in water Flow Rate: 2.5 mL/min Detection: UV at 254 nm Sample Preparation: 1 mg/mL in water or internal standard solution Internal Standard: adenosine (0.3 mg/mL in 0.01 N NaOH) Retention Volume: 31 mL (NSC - 39661) 36 mL (I.S.) Toxicity Data: Rat(ip): LD50: 4000 mg/kg Advances in Teratology, 3,181,(1968) Mouse(ip): LD50: 1000 mg/kg Journal of the National Cancer Institute, 62,911,(1979)