STANDARD OPERATING PROCEDURES FOR HAZARDOUS AND PARTICULARLY HAZARDOUS CHEMICALS For BUSULFAN (ASAF# 4147) 1. PROCEDURE / Busulfan solution is administered to mice via intraperitoneal injection at a dose PROCES of 25 - 60 mg/kg of body weight. For doses above 30 mg/kg a split dose separated by 12 hours will be used. Busulfan is dissolved in DMSO and diluted with RPMI-1640. 2. CHEMICAL NAME(S) Busulfan, CAS 55-98-1, is also known as 1,4-Butanediol and associated Dimethanesulfonate, Busilvex®, Myleran®. PHYSICAL and HEALTH Warning! Carcinogen. Causes eye, skin, and respiratory tract HAZARDS irritation. This substance has caused adverse reproductive and fetal effects in animals. Moisture sensitive. Target Organs: Respiratory system, eyes, skin. 3. NAME OF TRAINER / RESOURCE PERSON 4. LOCATION OF HEALTH & SAFETY INFORMATION Toxicity data: WISHA TWA: 0.03 mg/m3 LD 50: Mouse, IP = 86 mg/kg, Mouse, oral: = 110 mg/kg. Principal Investigator: Grant Trobridge – Office: SPBS 319, Phone: 368-6564 Animal Care Supervisor: or Russ Matheson – Phone: 358-7858 (Spokane Vivarium) The MSDS for Busulfan is kept and available in SPBS 330 suite. Labeling: Containers with Busulfan shall either have original warning label affixed or a label identifying the contents and hazards. Animal Cages: For the first two weeks or fourteen days post administration: Signs or cards shall be placed on the mouse cages with mice treated with Busulfan which have the appropriate hazard warning symbol and/or state: “Caution: these mice treated with Busulfan.” After cage is dumped following two weeks or fourteen days post administration: Signs or cards shall be placed on the mouse cages with mice treated with Busulfan which state: “The concentration of busulfan excreted after two weeks or fourteen days post administration is less than 0.1%, the OSHA criteria for when a substance is considered a potential carcinogen. As of ___/___/___, the standard precautionary measures for handling a potential carcinogen identified in this SOP are no longer warranted.” 5. PROTECTIVE EQUIPMENT Note - Bedding from animals subject to any research substance, regardless of the concentration or risk, should not be allowed in compost. Therefore, although contaminated bedding dumped after two weeks is not subject to hazardous waste requirements, it still should be disposed of as standard landfill waste instead of compost waste (see WASTE DISPOSAL PROCEDURES below). Concentrated Busulfan: Wear appropriate chemical resistant gloves, chemical splash goggles, and a lab coat while handling, dispensing, or during experimental use of Busulfan and only do so within the confines of a certified laboratory fume hood. Wash hands thoroughly after use. Animals treated with busulfan, their cages and bedding materials: Animals injected with busulfan for experimental purposes shall be identified by labeling of the cage with the date of administration. For at least two weeks or fourteen days after administration, up until the cage is dumped after this time period (two weeks): wear lab coat or coveralls, chemical resistant gloves and eye protection when handling treated animals. 6. WASTE DISPOSAL PROCEDURES In addition, handling treated animals or dumping bedding from their cages must be conducted within the confines of a certified biosafety cabinet or lab hood or use of either a half mask air purifying or powered air purifying respirator (PAPR) equipped with HEPA filters is required. Laboratory waste: Do not allow into domestic water supply or sewer. Waste Busulfan should be kept in an airtight compatible container that is properly labeled. A completed Dangerous Waste label should be attached when waste is first added to the container. When the container is ¾ full complete an online Chemical Collection Request (CCR) Form, and EH&S will arrange for pickup. Animals treated with Busulfan: place carcasses in lined biohazard box and incinerate as medical waste. Bedding contaminated with Busulfan: contaminated bedding accumulated during the first two weeks (fourteen days) post administration must be disposed of as a regulated dangerous waste. Collect in compatible container labeled with a completed Dangerous Waste label, accompanied with completed Chemical Collection Request form, and held until picked up by EH&S. 7. DESIGNATED AREA INFORMATION 8. DECONTAMINATION PROCEDURES Contaminated bedding dumped after two weeks is not subject to hazardous waste requirements but still should be disposed by methods which prevent individuals handling waste from subsequent contact; double bag contaminated bedding materials and dispose of as standard landfill waste. Concentrated Busulfan is stored, weighed, and mixed in in SPBS 330 suite. Busulfan in DMSO is handled in a certified fume hood prior to dilution. Only individuals trained in the safe handling and use of Busulfan are allowed access. Animals treated with Busulfan: treated mice are to be housed in microisolator cages and located in a secured animal room in the Wegner vivarium. Upon Accidental Exposure: for eye or skin contact, flush eyes or skin with copious amounts of water for fifteen minutes; for accidental inhalation or ingestion, immediately seek medical attention and follow instructions on MSDS. Upon accidental release: evacuate the area immediately. Any spilled chemical must be immediately reported to EH&S for decontamination. Small amounts of busulfan should be cleaned up as follows: while wearing approved respiratory protection, protective outer-garments and rubber gloves, spray spill with water mist to prevent powder from becoming airborne, absorb and remove to appropriate containers for disposal as hazardous waste. Remove residual activity by wiping area with dilute Chemsolv (10 ml per 500 ml) followed by wiping area with dilute bleach solution. 9. SPECIAL STORAGE AND HANDLING PROCEDURES You must be trained in the proper cleanup procedures and medically cleared and fit tested to wear a respirator. Keep Busulfan in a tightly closed container. Store in a cool, dry, ventilated area away from sources of heat or ignition. Moisture sensitive may decompose when exposed to moist air or water. Protect against physical damage. Store away from strong oxidizing agents. Revision Date 08/15/2013