1,3-BIS[2-(3,4- EPOXYCYCLOHEXYL)ETHYL]TETRAMETHYLDISILOXANE, 90% Safety Data Sheet SIB Date of issue: 05/08/2014 Version: 1.

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1 SIB ,3-BIS[2-(3,4-1,3-BIS[2-(3,4- SIB Date of issue: 05/08/2014 Version: 1.0 SECTION 1: Identification of the substance/mixture and of the company/undertaking 1.1. Product identifier Product form : Substance Substance name : 1,3-BIS[2-(3,4- Product code : SIB Formula : C20H38O3Si2 Synonyms : 1,3-BIS[2-(7-OXABICYCLO[4.1.0]HEPT-3-ETHYL]TETRAMETHYLDISILOXANE Chemical family : EPOXYSILOXANE 1.2. Relevant identified uses of the substance or mixture and uses advised against Relevant identified uses Use of the substance/mixture : For research and industrial use only Chemical intermediate Uses advised against 1.3. Details of the supplier of the safety data sheet GELEST, INC. 11 East Steel Road Morrisville, PA USA T F (M-F): 8:00 AM - 5:30 PM EST info@gelest.com - GELEST INC. Stroofstrasse 27 Geb Frankfurt am Main Germany T +49-(0) F +49-(0) (M-F): 8:00 AM - 5:30 PM info@gelestde.com Emergency telephone number Emergency number : CHEMTREC: SECTION 2: Hazards identification 2.1. Classification of the substance or mixture Classification according to Regulation (EC) No. 1272/2008 [CLP] Eye Irrit. 2 H319 Full text of H-phrases: see section 16 Classification according to Directive 67/548/EEC or 1999/45/EC Xi; R36 Full text of R-phrases: see section 16 Adverse physicochemical, human health and environmental effects 2.2. Label elements Labeling according to Regulation (EC) No. 1272/2008 [CLP] Hazard pictograms (CLP) : Signal word (CLP) Hazard statements (CLP) GHS07 : Warning : H319 - Causes serious eye irritation 08/05/2014 EN (English US) SDS ID: SIB /6

2 Precautionary statements (CLP) 2.3. Other hazards Other hazards not contributing to the classification : P280 - Wear protective gloves/protective clothing/eye protection/face protection P264 - Wash hands thoroughly after handling P305+P351+P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing P337+P313 - If eye irritation persists: Get medical advice/attention : Classification (GHS-UN). Acute toxicity (oral) Category 5. SECTION 3: Composition/information on ingredients 3.1. Substance Substance type : Mono-constituent Name : 1,3-BIS[2-(3,4- CAS No : Name Product identifier % Classification according to Directive 67/548/EEC 1,3-Bis[2-(3,4-epoxycyclohexyl)ethyl]tetramethyldisiloxane (CAS No) > 90 Xi; R36 Name Product identifier % Classification according to Regulation (EC) No. 1272/2008 [CLP] 1,3-Bis[2-(3,4-epoxycyclohexyl)ethyl]tetramethyldisiloxane (CAS No) > 90 Eye Irrit. 2, H319 Full text of R- and H- phrases: see section Mixture 4.1. Description of first aid measures First-aid measures general First-aid measures after inhalation First-aid measures after skin contact First-aid measures after eye contact First-aid measures after ingestion : Remove contaminated clothing and shoes. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). If possible show this sheet, if not available show packaging or label. : Remove to fresh air and keep at rest in a position comfortable for breathing. If you feel unwell, seek medical advice. : Wash with plenty of soap and water. : Immediately flush eyes thoroughly with water for at least 15 minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Get medical advice/attention. : Never give anything by mouth to an unconscious person. Get medical advice/attention Most important symptoms and effects, both acute and delayed Symptoms/injuries after inhalation Symptoms/injuries after skin contact Symptoms/injuries after eye contact Symptoms/injuries after ingestion : May cause irritation to the respiratory tract. Overexposure may cause: Coughing. Headache. Nausea. : May cause skin irritation. : Causes serious eye irritation. : May be harmful if swallowed Indication of any immediate medical attention and special treatment needed SECTION 5: Firefighting measures 5.1. Extinguishing media Suitable extinguishing media 5.2. Special hazards arising from the substance or mixture Fire hazard : Water spray. Foam. Carbon dioxide. Dry chemical. : Irritating fumes and organic acid vapors may develop when material is exposed to elevated temperatures or open flame Advice for firefighters Firefighting instructions Protection during firefighting : Use water spray to cool exposed surfaces. Exercise caution when fighting any chemical fire. : Do not enter fire area without proper protective equipment, including respiratory protection. Avoid all eye and skin contact and do not breathe vapor and mist. 08/05/2014 EN (English US) SDS ID: SIB /6

3 SECTION 6: Accidental release measures 6.1. Personal precautions, protective equipment and emergency procedures For non-emergency personnel Emergency procedures For emergency responders Protective equipment : Evacuate unnecessary personnel. : Equip cleanup crew with proper protection Environmental precautions Prevent entry to sewers and public waters. Notify authorities if liquid enters sewers or public waters Methods and material for containment and cleaning up Methods for cleaning up 6.4. Reference to other sections See Heading 8. Exposure controls and personal protection. SECTION 7: Handling and storage 7.1. Precautions for safe handling Precautions for safe handling Hygiene measures 7.2. Conditions for safe storage, including any incompatibilities Storage conditions Incompatible materials Storage area 7.3. Specific end use(s) : Clean up any spills as soon as possible, using an absorbent material to collect it. Sweep or shovel spills into appropriate container for disposal. : Provide good ventilation in process area to prevent accumulation of vapors. Avoid all eye and skin contact and do not breathe vapor and mist. : Wash contaminated clothing before reuse. Wash hands thoroughly after handling. : Keep container tightly closed. : Amines. Moisture. Water. SECTION 8: Exposure controls/personal protection 8.1. Control parameters : Store in a well-ventilated place. Store away from heat Exposure controls Appropriate engineering controls Personal protective equipment Hand protection Eye protection Skin and body protection Respiratory protection : Provide local exhaust or general room ventilation. : Avoid all unnecessary exposure. Emergency eye wash fountains and safety showers should be available in the immediate vicinity of any potential exposure. : Neoprene or nitrile rubber gloves. : Chemical goggles. Contact lenses should not be worn. : Wear suitable protective clothing. : NIOSH-certified organic vapor (black cartridge) respirator. SECTION 9: Physical and chemical properties 9.1. Information on basic physical and chemical properties Physical state : Liquid Appearance : Clear liquid. Viscous. Molecular mass : g/mol Color : Straw. Odor : Mild. Odor threshold Refractive index : ph Relative evaporation rate (butyl acetate=1) : < 1 Melting point : -40 C Freezing point Boiling point : > mm Hg Flash point : 200 C Self ignition temperature 08/05/2014 EN (English US) SDS ID: SIB /6

4 Decomposition temperature Flammability (solid, gas) Vapor pressure Relative vapor density at 20 C : > 1 : < 0.1 mm Hg Relative density : VOC content : < 3 % Solubility Log Pow : 7.17 Log Kow Viscosity, kinematic Viscosity, dynamic Explosive properties Oxidizing properties Explosion limits 9.2. Other information SECTION 10: Stability and reactivity Reactivity Chemical stability Stable in sealed containers Possibility of hazardous reactions : Insoluble in water. Reacts with water. Water: < 0.5 mg/l : 40 cst Reacts slowly with water and moisture. Can react exothermically with amines. Hazardous polymerization can occur if heated above 150 C Conditions to avoid Heat. Open flame. Sparks Incompatible materials Amines. Moisture. Water Hazardous decomposition products Organic acid vapors. SECTION 11: Toxicological information Information on toxicological effects Acute toxicity 1,3-Bis[2-(3,4-epoxycyclohexyl)ethyl]tetramethyldisiloxane ( ) LD50 oral rat > 2000 mg/kg Skin corrosion/irritation Serious eye damage/irritation Respiratory or skin sensitization Germ cell mutagenicity Carcinogenicity Reproductive toxicity Specific target organ toxicity (single exposure) Specific target organ toxicity (repeated exposure) Aspiration hazard Symptoms/injuries after inhalation : Causes serious eye irritation. The related compound, glycidoxypropyltrimethoxysilane has been found to be weakly mutagenic in Ames in vitro screening. In vivo studies have shown that repeated exposure to this material, even at otherwise toxic doses, does not cause any mutagenic events. No tumerogenic response to the chronic recurrent application of the material to the skin of mice was observed. : May cause irritation to the respiratory tract. Overexposure may cause: Coughing. Headache. Nausea. 08/05/2014 EN (English US) SDS ID: SIB /6

5 Symptoms/injuries after skin contact Symptoms/injuries after eye contact Symptoms/injuries after ingestion : May cause skin irritation. : Causes serious eye irritation. : May be harmful if swallowed. SECTION 12: Ecological information Toxicity Persistence and degradability Bioaccumulative potential 1,3-BIS[2-(3,4- ( ) Log Pow Mobility in soil Results of PBT and vpvb assessment Other adverse effects SECTION 13: Disposal considerations Waste treatment methods Waste disposal recommendations : May be incinerated. Dispose in a safe manner in accordance with local/national regulations. Ecology - waste materials : Avoid release to the environment. SECTION 14: Transport information UN number Not regulated for transport UN proper shipping name Transport hazard class(es) Packing group Environmental hazards Other information : No supplementary information available Special precautions for user Overland transport Transport by sea Air transport Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code SECTION 15: Regulatory information Safety, health and environmental regulations/legislation specific for the substance or mixture EU-Regulations No REACH Annex XVII restrictions Contains no REACH candidate substance 08/05/2014 EN (English US) SDS ID: SIB /6

6 National regulations 1,3-Bis[2-(3,4-epoxycyclohexyl)ethyl]tetramethyldisiloxane ( ) Listed on Non-Domestic Substances List (NDSL) Listed on Inventory of Existing Chemical Substances (IECSC) Listed on the Japanese ENCS (Existing & New Chemicals Substances) inventory. Listed on the United States TSCA (Toxic Substances Control Act) inventory Chemical safety assessment SECTION 16: Other information Abbreviations and acronyms : Abbreviations: ND: Not Determined, No Data; NA: Not Applicable; LD: Lethal Dose; LC: Lethal Concentration; ATE: Acute Toxicity Estimates; H: hour; : C unless otherwise stated; mm: millimeters Hg, torr; PEL: permissible exposure level; TWA: time weighted average; TLV: threshold limit value; NIOSH: National Institute for Occupational Safety and Health; IARC: International Agency for Research on Cancer; NTP: National Toxicology Program; HMIS: Hazardous Material Information System; CAS No.: Chemcial Abstract Service Registration Number; EC No.: European Commission Registration Number; EC Index No.: European Commission Index Number. Full text of R-, H- and EUH-phrases:: Eye Irrit. 2 Serious eye damage/eye irritation Category 2 H319 R36 Xi Causes serious eye irritation Irritating to eyes Irritant Prepared by safety and environmental affairs. SDS EU (REACH Annex II) - Custom According to Regulation (EC) No. 453/2010 The information contained in this document has been gathered from reference materials and/or Gelest, Inc. test data and is to the best knowledge and belief of Gelest, Inc. accurate and reliable. Such information is offered solely for your consideration, investigation and verification. It is not suggested or guaranteed that the hazard precautions or procedures described are the only ones which exist. Gelest, Inc. makes no warranties, express or implied, with respect to the use of such information and assumes no responsibility therefore. Information on this safety data sheet is not intended to constitute a basis for product specifications Gelest Inc. Morrisville, PA /05/2014 EN (English US) SDS ID: SIB /6