HOMOHARRINGTONINE NSC - 141633 SMILES: COC(=O)C[C@](O)(CCCC(C)(C)O)C(=O)O[C@H]1[C@H]2c3cc4OCOc4cc3CCN5CCC[C@]25C=C1OC Chemical Name: Cephalotaxine, 4-methyl 2-hydroxy-2-(4-hydroxy-4-methylpentyl)-butanedioate (ester),[3(R)]- Other Name: HHT CAS Registry Number: 26833-87-4 Molecular Formula: C29H39NO9 M.W.: 545.6 How Supplied: For Injection, 10 mg, vial: The product is supplied as a lyophilized powder in 10 mL amber vials with mannitol, USP, 50 mg and hydrochloric acid to adjust pH. Solution Preparation: Vial, 10 mg: When constituted with 4.9 mL of 0.9% Sodium Chloride Injection, USP, each milliliter contains 2 mg of homoharringtonine with 10 mg of mannitol, USP, and hydrochloric acid to adjust the pH to 3.0 to 5.0. Storage: Store the intact vials in the refrigerator (4 to 8 °C). Stability: Intact vials are stable for 5 years at room temperature (22-25 °C). Intact vials are stable for at least one year when stored at elevated temperature (50 °C). The vials bear a 3 year expiration date. Constitution as recommended results in a solution which is chemically and physically stable for 96 hours at room temperature under normal fluorescent lighting. Further dilution of the constituted solution to concentrations of 0.05 mg/mL and 0.01 mg/mL in 0.9% Sodium Chloride Injection, USP, or 5% Dextrose Injection, USP, also results in solutions which are chemically and physically stable for at least 96 hours at room temperature under normal fluorescent lighting. CAUTION: The single-use lyophilized dosage form contains no antibacterial preservatives. Therefore, it is advised that the constituted product be discarded within 8 hours of initial entry. Route of Administration: Intravenous