International Chemical Safety Cards PIPERONYL BUTOXIDE ICSC: 1347 5-2-(2-Butoxyethoxy)ethoxymethyl-6-propyl-1,3-benzodioxole 2-(2-Butoxyethoxy)ethyl 6-propylpiperonyl ether alpha-2-(2-Butoxyethoxy)-ethoxy-4,5-methylenedioxy-2-propyltoluene 3,4-(Methylenedioxy)-6-propylbenzylbutyl diethyleneglycol ether C19H30O5 Molecular mass: 338.4 ICSC #    1347 CAS #     51-03-6 RTECS # XS8050000 October 18, 1999 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. NO open flames. Foam, powder, carbon dioxide. EXPLOSION EXPOSURE PREVENT GENERATION OF MISTS!  •INHALATION Ventilation. Fresh air, rest.  •SKIN Protective gloves. Remove contaminated clothes. Rinse and then wash skin with water and soap.  •EYES Safety spectacles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Diarrhoea. Vomiting. Do not eat, drink, or smoke during work. Rinse mouth. Give plenty of water to drink. Rest. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT let this chemical enter the environment. Well closed. R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 1347 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards PIPERONYL BUTOXIDE ICSC: 1347 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: OILY YELLOW TO BROWN LIQUID PHYSICAL DANGERS: CHEMICAL DANGERS: OCCUPATIONAL EXPOSURE LIMITS: TLV not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. INHALATION RISK: No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point at 0.13kPa: 180°C Relative density (water = 1): 1.1 Solubility in water: none Flash point: 171°C Octanol/water partition coefficient as log Pow: 4.29 ENVIRONMENTAL DATA The substance is very toxic to aquatic organisms. In the food chain important to humans, bioaccumulation takes place, specifically in seafood. N O T E S ADDITIONAL INFORMATION ICSC: 1347 PIPERONYL BUTOXIDE (C) IPCS, CEC, 1994

IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.