International Chemical Safety Cards n-AMYL ACETATE ICSC: 0218 n-Pentyl acetate 1-Pentyl acetate Acetic acid, 1-pentyl ester C7H14O2 / CH3COO(CH2)4CH3 Molecular mass: 130.2 ICSC #    0218 CAS #     628-63-7 RTECS # AJ1925000 UN #        1104 EC #         607-130-70-2 April 11, 2000 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Flammable. NO open flames, NO sparks, and NO smoking. AFFF, alcohol-resistant foam, powder, carbon dioxide. EXPLOSION Above 25°C explosive vapour/air mixtures may be formed. Above 25°C use a closed system, ventilation, and explosion-proof electrical equipment. In case of fire: keep drums, etc., cool by spraying with water. EXPOSURE  •INHALATION Cough. Dizziness. Drowsiness. Headache. Sore throat. Ventilation, local exhaust, or breathing protection. Fresh air, rest.  •SKIN Dry skin. Redness. Protective gloves. Remove contaminated clothes. Rinse skin with plenty of water or shower.  •EYES Redness. Pain. Face shield. or eye protection in combination with breathing protection. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Do not eat, drink, or smoke during work. Rinse mouth. Give plenty of water to drink. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Remove all ignition sources. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Fireproof. Separated from oxidants . Note: C R: 10-66 S: 2-23-25 UN Hazard Class: 3 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 0218 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 n-AMYL ACETATE ICSC: 0218 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: The vapour is heavier than air. CHEMICAL DANGERS: Reacts with oxidants causing fire and explosion hazard. Attacks many plastics. OCCUPATIONAL EXPOSURE LIMITS: TLV: 100 ppm as TWA; (ACGIH 1999). MAK: 50 ppm; 270 mg/m3 (1999) OSHA PEL: TWA 100 ppm (525 mg/m3) NIOSH REL: TWA 100 ppm (525 mg/m3) NIOSH IDLH: 1000 ppm ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its vapour. INHALATION RISK: A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes, the skin and the respiratory tract. Exposure at high levels may result in lowering of consciousness. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The liquid defats the skin. PHYSICAL PROPERTIES Boiling point: 149°C Melting point: -71°C Relative density (water = 1): 0.88 Solubility in water: poor Vapour pressure, kPa at 25°C: 0.65 Relative vapour density (air = 1): 4.5 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.02 Flash point: 25°C c.c. Auto-ignition temperature: 360°C Explosive limits, vol% in air: 1.1-7.5 Octanol/water partition coefficient as log Pow: 2.18 ENVIRONMENTAL DATA N O T E S Use of alcoholic beverages enhances the harmful effect. Transport Emergency Card: TEC (R)-30G35 NFPA Code: H 1; F 3; R 0; ADDITIONAL INFORMATION ICSC: 0218 n-AMYL ACETATE (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.