International Chemical Safety Cards 1-NONANETHIOL ICSC: 1620 n-Nonylmercaptan n-Nonylthiol 1-Mercaptononane C9H20S / CH3(CH2)8SH Molecular mass: 160.3 ICSC #    1620 CAS #     1455-21-6 UN #        3334 May 04, 2006 Validated TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. NO open flames. Powder, water spray, foam, carbon dioxide. EXPLOSION Above 78°C explosive vapour/air mixtures may be formed. Above 78°C use a closed system, ventilation, and explosion-proof electrical equipment. EXPOSURE  •INHALATION Cough. Sore throat. Headache. Nausea. Ventilation. Fresh air, rest.  •SKIN Redness. Protective gloves. Remove contaminated clothes. Rinse and then wash skin with water and soap.  •EYES Redness. Pain. Safety spectacles, First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Headache. Nausea. Vomiting. Do not eat, drink, or smoke during work. Do NOT induce vomiting. Give one or two glasses of water to drink. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Personal protection: filter respirator for organic gases and vapours. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Separated from strong oxidants, strong bases, strong acids. UN Hazard Class: 9 SEE IMPORTANT INFORMATION ON BACK ICSC: 1620 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 1-NONANETHIOL ICSC: 1620 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: The liquid can float on water and may travel along the ground; distant ignition possible. CHEMICAL DANGERS: Reacts violently with oxidants, reducing agents, strong acids and strong bases. The substance decomposes on heating producing toxic and corrosive fumes, including hydrogen sulfide and sulfur oxides. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK not established. ROUTES OF EXPOSURE: 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: The substance is irritating to the eyes, the respiratory tract and the skin . EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point: 220°C Melting point: -20°C Relative density (water = 1): 0.84 Solubility in water: (very poor) Relative vapour density (air = 1): 5.5 Flash point: 78°C c.c. ENVIRONMENTAL DATA N O T E S Health effects of exposure to the substance have not been investigated adequately. Environmental effects from the substance have not been investigated adequately. ADDITIONAL INFORMATION ICSC: 1620 1-NONANETHIOL (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.