| Name: | 4-Chloro-2-methyl-5 6 7 8-tetrahydro[1]benzothieno[2 3-d]pyrimidine Material Safety Data Sheet | 
| Synonym: | None Known | 
| CAS: | 81765-97-1 | 
 
 Section 1 - Chemical Product 
  
 MSDS Name:4-Chloro-2-methyl-5 6 7 8-tetrahydro[1]benzothieno[2 3-d]pyrimidine Material Safety Data Sheet 
 Synonym:None Known  
 
 
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS 
| CAS# | Chemical Name | content | EINECS# | 
| 81765-97-1 | 4-Chloro-2-methyl-5,6,7,8-tetrahydro[1 | 97+ | unlisted | 
 Hazard Symbols: XI 
 Risk Phrases: 36/37/38  
 
 
Section 3 - HAZARDS IDENTIFICATION 
  
 EMERGENCY OVERVIEW
 Irritating to eyes, respiratory system and skin.
 Potential Health Effects
 Eye:
 Causes eye irritation. May cause chemical conjunctivitis.
 Skin:
 Causes skin irritation. May be harmful if absorbed through the skin.
 Ingestion:
 May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.
 Inhalation:
 Causes respiratory tract irritation. May be harmful if inhaled.
 Chronic:
 No information found. 
 
 
Section 4 - FIRST AID MEASURES 
  
 Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
 Skin:
 Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
 Ingestion:
 Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
 Inhalation:
 Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
 Notes to Physician:
 Treat symptomatically and supportively. 
 
 
Section 5 - FIRE FIGHTING MEASURES 
  
 General Information:
 As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
 Extinguishing Media:
 Use water spray, dry chemical, carbon dioxide, or appropriate foam. 
 
 
Section 6 - ACCIDENTAL RELEASE MEASURES 
  
 General Information: Use proper personal protective equipment as indicated in Section 8.
 Spills/Leaks:
 Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation. 
 
 
Section 7 - HANDLING and STORAGE 
  
 Handling:
 Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Wash clothing before reuse.
 Storage:
 Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. 
 
 
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION 
  
 Engineering Controls:
 Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
 Exposure Limits CAS# 81765-97-1: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
 Skin:
 Wear appropriate protective gloves to prevent skin exposure.
 Clothing:
 Wear appropriate protective clothing to prevent skin exposure.
 Respirators:
 A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use. 
 
 
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES 
  
  Physical State: Solid
 Color: yellow
 Odor: Not available.
 pH: Not available.
 Vapor Pressure: Not available.
 Viscosity: Not available.
 Boiling Point: Not available.
 Freezing/Melting Point: 93-94 deg C
 Autoignition Temperature: Not available.
 Flash Point: Not available.
 Explosion Limits, lower: Not available.
 Explosion Limits, upper: Not available.
 Decomposition Temperature:
 Solubility in water:
 Specific Gravity/Density:
 Molecular Formula: C11H11ClN2S
 Molecular Weight: 238.74 
 
 
Section 10 - STABILITY AND REACTIVITY 
  
 Chemical Stability:
 Stable at room temperature in closed containers under normal storage and handling conditions.
 Conditions to Avoid:
 Dust generation.
 Incompatibilities with Other Materials:
 Oxidizing agents, amines, bases.
 Hazardous Decomposition Products:
 Hydrogen chloride, carbon monoxide, oxides of nitrogen, oxides of sulfur, carbon dioxide, chlorine.
 Hazardous Polymerization: Has not been reported. 
 
 
Section 11 - TOXICOLOGICAL INFORMATION 
  
 RTECS#:
 CAS# 81765-97-1 unlisted.
 LD50/LC50:
 Not available.
 Carcinogenicity:
 4-Chloro-2-methyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidine - Not listed by ACGIH, IARC, or NTP. 
 
 
Section 12 - ECOLOGICAL INFORMATION 
  
  
 
 
Section 13 - DISPOSAL CONSIDERATIONS 
  
 Dispose of in a manner consistent with federal, state, and local regulations. 
 
 
Section 14 - TRANSPORT INFORMATION 
  
  IATA
 Shipping Name: Not regulated.
 Hazard Class:
 UN Number:
 Packing Group:
 IMO
 Shipping Name: Not regulated.
 Hazard Class:
 UN Number:
 Packing Group:
 RID/ADR
 Shipping Name: Not regulated.
 Hazard Class:
 UN Number:
 Packing group: 
 
 
Section 15 - REGULATORY INFORMATION 
  
  European/International Regulations
 European Labeling in Accordance with EC Directives
 Hazard Symbols: XI
 Risk Phrases:
 R 36/37/38 Irritating to eyes, respiratory system
 and skin.
 Safety Phrases:
 S 22 Do not breathe dust.
 S 26 In case of contact with eyes, rinse immediately
 with plenty of water and seek medical advice.
 S 36/37/39 Wear suitable protective clothing, gloves
 and eye/face protection.
 WGK (Water Danger/Protection)
 CAS# 81765-97-1: No information available.
 Canada
 None of the chemicals in this product are listed on the DSL/NDSL list.
 CAS# 81765-97-1 is not listed on Canada's Ingredient Disclosure List.
 US FEDERAL
 TSCA
 CAS# 81765-97-1 is not listed on the TSCA inventory.
 It is for research and development use only. 
 SECTION 16 - ADDITIONAL INFORMATION N/A