International Chemical Safety Cards TRIPHENYLTIN HYDROXIDE ICSC: 1283 Hydroxytriphenylstannane Hydroxytriphenylstannate Fentin hydroxide C18H16OSn / (C6H5)3SnOH Molecular mass: 367.0 ICSC #    1283 CAS #     76-87-9 RTECS # WH8575000 UN #        2786 EC #         050-004-00-1 April 21, 2005 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. Liquid formulations containing organic solvents may be flammable. NO open flames. Powder, water spray, foam, carbon dioxide. EXPLOSION In case of fire: keep drums, etc., cool by spraying with water. EXPOSURE AVOID ALL CONTACT!  •INHALATION Cough. Sore throat. Dizziness. Drowsiness. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Refer for medical attention.  •SKIN MAY BE ABSORBED! Redness. Pain. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.  •EYES Redness. Pain. Blurred vision. Safety goggles 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 Abdominal pain. (Further see Inhalation). Do not eat, drink, or smoke during work. Wash hands before eating. Give a slurry of activated charcoal in water to drink. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Give plenty of water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Personal protection: P3 filter respirator for toxic particles. Use face shield. Chemical protection suit. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Store in an area without drain or sewer access. Do not transport with food and feedstuffs. Severe marine pollutant. T+ symbol N symbol R: 24/25-26-36/38-40-41-48/23-50/53-63 S: 1/2-26-28-36/37/39-45-60-61 UN Hazard Class: 6.1 UN Packing Group: II SEE IMPORTANT INFORMATION ON BACK ICSC: 1283 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 TRIPHENYLTIN HYDROXIDE ICSC: 1283 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: WHITE CRYSTALLINE POWDER PHYSICAL DANGERS: CHEMICAL DANGERS: OCCUPATIONAL EXPOSURE LIMITS: TLV: (as tin, organic compounds) 0.1 mg/m³ as TWA; 0.2 mg/m³ as STEL; (skin); A4 (not classifiable as a human carcinogen); (ACGIH 2005). MAK: Tin compounds, organic (as Sn), 0.1 mg/m³ (Inhalable fraction); Peak limitation category: II (2); skin absorption (H); Pregnancy risk group: D; (DFG 2004). ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation, through the skin and by ingestion. INHALATION RISK: A harmful concentration of airborne particles can be reached quickly on spraying or when dispersed, especially if powdered. EFFECTS OF SHORT-TERM EXPOSURE: The substance is severely irritating to the eyes and is irritating to the skin and the respiratory tract . The substance may cause effects on the central nervous system . EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the immune system , resulting in impaired functions . Animal tests show that this substance possibly causes toxicity to human reproduction or development. PHYSICAL PROPERTIES Melting point: 118°C Density: 1.54 g/cm3 Solubility in water, g/100 ml: 0.0001 (very poor) Flash point: 400°C Octanol/water partition coefficient as log Pow: 3.66 ENVIRONMENTAL DATA The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur along the food chain, for example in fish and in molluscs. This substance does enter the environment under normal use. Great care, however, should be given to avoid any additional release, e.g. through inappropriate disposal. N O T E S Carrier solvents used in commercial formulations may change physical and toxicological properties. Do NOT take working clothes home. Transport Emergency Card: TEC (R)-61GT7-II ADDITIONAL INFORMATION ICSC: 1283 TRIPHENYLTIN HYDROXIDE (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.