International Chemical Safety Cards o-AMINOPHENOL ICSC: 0824 2-Aminophenol 2-Amino-1-hydroxybenzene o-Hydroxyaniline C6H7NO / C6H4(OH)(NH2) Molecular mass: 109.12 ICSC #    0824 CAS #     95-55-6 RTECS # SJ4950000 UN #        2512 EC #         612-033-00-3 November 27, 1998 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. Heating will cause rise in pressure with risk of bursting. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames. Powder, alcohol-resistant foam, water spray, carbon dioxide. EXPLOSION In case of fire: keep drums, etc., cool by spraying with water. EXPOSURE PREVENT DISPERSION OF DUST!  •INHALATION Blue lips or finger nails. Blue skin. Confusion. Convulsions. Cough. Dizziness. Headache. Laboured breathing. Nausea. Unconsciousness. Symptoms may be delayed (see Notes). Local exhaust or breathing protection. Fresh air, rest. Artificial respiration if indicated. Refer for medical attention.  •SKIN Protective gloves. Protective clothing. Rinse skin with plenty of water or shower.  •EYES Redness. Safety goggles, 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 (See Inhalation). Do not eat, drink, or smoke during work. Rinse mouth. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. (Extra personal protection: complete protective clothing including self-contained breathing apparatus). Separated from strong oxidants, strong acids, food and feedstuffs. Well closed. Do not transport with food and feedstuffs. Xn symbol R: 20/22-40 S: 2-28-36/37 UN Hazard Class: 6.1 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 0824 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 o-AMINOPHENOL ICSC: 0824 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS TO WHITE CRYSTALS . TURNS DARK ON EXPOSURE TO AIR OR LIGHT. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating producing toxic fumes (nitrogen oxides). Reacts violently with oxidants causing fire and explosion hazard. 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: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly. EFFECTS OF SHORT-TERM EXPOSURE: The substance may cause effects on the blood , resulting in formation of methaemoglobin. The effects may be delayed. Medical observation is indicated. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact may cause skin sensitization. PHYSICAL PROPERTIES Melting point: 170-174°C Solubility in water, g/100 ml: 1.7 Flash point: 190°C Octanol/water partition coefficient as log Pow: 0.62 ENVIRONMENTAL DATA The substance is toxic to aquatic organisms. N O T E S Temperature of decomposition unknown in literature. Depending on the degree of exposure, periodic medical examination is indicated. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. Transport Emergency Card: TEC (R)-885 NFPA Code: H2; F1; R2; ADDITIONAL INFORMATION ICSC: 0824 o-AMINOPHENOL (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.