| | **** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS **** 
 +----------------+--------------------------------------+----------+-----------+
 |      CAS#      |              Chemical Name           |    %     |  EINECS#  |
 |----------------|--------------------------------------|----------|-----------|
 |      103-47-9  |Ches                                  |   >98%   | 203-115-6 |
 +----------------+--------------------------------------+----------+-----------+
 Hazard Symbols: None Listed.
 Risk Phrases: None Listed.
 
 **** SECTION 3 - HAZARDS IDENTIFICATION ****
 
 EMERGENCY OVERVIEW
 The toxicological properties of this material have not been fully
 investigated.
 
 Potential Health Effects
 Eye:
 May cause eye irritation.
 Skin:
 May cause skin irritation.
 Ingestion:
 May cause irritation of the digestive tract. The toxicological
 properties of this substance have not been fully investigated.
 Inhalation:
 May cause respiratory tract irritation. The toxicological properties
 of this substance have not been fully investigated.
 Chronic:
 No information found.
 
 **** SECTION 4 - FIRST AID MEASURES ****
 
 Eyes:
 Flush eyes with plenty of water for at least 15 minutes,
 occasionally lifting the upper and lower eyelids. Get medical aid.
 Skin:
 Flush skin with plenty of water for at least 15 minutes while
 removing contaminated clothing and shoes. Get medical aid if
 irritation develops or persists. Wash clothing before reuse.
 Ingestion:
 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 if cough or other symptoms appear.
 Notes to Physician:
 
 **** 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. Runoff from
 fire control or dilution water may cause pollution.
 Extinguishing Media:
 Use agent most appropriate to extinguish fire. 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:
 Vacuum or sweep up material and place into a suitable disposal
 container. Clean up spills immediately, observing precautions in the
 Protective Equipment section. Avoid generating dusty conditions.
 Provide ventilation.
 
 **** SECTION 7 - HANDLING and STORAGE ****
 
 Handling:
 Wash thoroughly after handling. Use with adequate ventilation.
 Minimize dust generation and accumulation. Avoid contact with eyes,
 skin, and clothing. Keep container tightly closed. Avoid ingestion
 and inhalation.
 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# 103-47-9:
 
 
 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:
 Follow the OSHA respirator regulations found in 29
 CFR 1910.134 or European Standard EN 149. Use a
 NIOSH/MSHA or European Standard EN 149 approved
 respirator if exposure limits are exceeded or if
 irritation or other symptoms are experienced.
 
 **** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
 
 Physical State:             Solid
 Color:                      white
 Odor:                       none reported
 pH:                         Not available.
 Vapor Pressure:             Not available.
 Viscosity:                  Not available.
 Boiling Point:              Not available.
 Freezing/Melting Point:     > 572 deg F
 Autoignition Temperature:   Not available.
 Flash Point:                Not available.
 Explosion Limits, lower:    Not available.
 Explosion Limits, upper:    Not available.
 Decomposition Temperature:  Not available.
 Solubility in water:        Soluble in water.
 Specific Gravity/Density:   Not available.
 Molecular Formula:          C8H17NO3S
 Molecular Weight:           207.1839
 
 **** SECTION 10 - STABILITY AND REACTIVITY ****
 
 Chemical Stability:
 Stable under normal temperatures and pressures.
 Conditions to Avoid:
 High temperatures, incompatible materials, dust generation.
 Incompatibilities with Other Materials:
 Oxidizing agents.
 Hazardous Decomposition Products:
 Carbon monoxide, oxides of nitrogen, oxides of sulfur, irritating and
 toxic fumes and gases, carbon dioxide.
 Hazardous Polymerization: Has not been reported.
 
 **** SECTION 11 - TOXICOLOGICAL INFORMATION ****
 
 RTECS#:
 CAS# 103-47-9 unlisted.
 LD50/LC50:
 Not available.
 Carcinogenicity:
 Ches -
 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
 Not regulated as a hazardous material.
 IMO
 Not regulated as a hazardous material.
 RID/ADR
 Not regulated as a hazardous material.
 
 **** SECTION 15 - REGULATORY INFORMATION ****
 
 European/International Regulations
 European Labeling in Accordance with EC Directives
 Hazard Symbols: Not available.
 Risk Phrases:
 Safety Phrases:
 WGK (Water Danger/Protection)
 CAS# 103-47-9: No information available.
 Canada
 CAS# 103-47-9 is listed on Canada's NDSL List.
 CAS# 103-47-9 is not listed on Canada's Ingredient Disclosure List.
 US FEDERAL
 TSCA
 CAS# 103-47-9 is listed on the TSCA inventory.
 
 **** SECTION 16 - ADDITIONAL INFORMATION ****
 
 MSDS Creation Date:  9/02/1997  Revision #4 Date:  3/18/2003
 
 The information above is believed to be accurate and represents the best
 information currently available to us. However, we make no warranty of
 merchantability or any other warranty, express or implied, with respect to
 such information, and we assume no liability resulting from its use. Users
 should make their own investigations to determine the suitability of the
 information for their particular purposes. In no way shall the company be
 liable for any claims, losses, or damages of any third party or for lost
 profits or any special, indirect, incidental, consequential or exemplary
 damages, howsoever arising, even if the company has been advised of
 the possibility of such damages.
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| 
| ALL MSDS PAGES IN THIS GROUP |  | | NAME | CAS |  
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| D(+)-Biotin, 98% | 58-85-5 |  
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| Diethylmethylphosphonate, 96% | 683-08-9 |  
| 2,2-Bis(Hydroxymethyl)-2,2',2"-Nitrilo- Triethanol, 99+% | 6976-37-0 |  
| ACES, 96% | 7365-82-4 |  
| HEPES, 99% | 7365-45-9 |  
| Tricine, 98+% | 5704-04-1 |  
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| l-Leucine, 99% | 61-90-5 |  
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| l-Threonine, 98% | 72-19-5 |  
| Benzamidine hydrochloride, 99% (titr.) | 1670-14-0 |  
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| N,N'-Diisopropylcarbodiimide, 99% | 693-13-0 |  
| N,N-Diisopropylethylamine | 7087-68-5 |  
| 4-Dimethylaminopyridine, 99% | 1122-58-3 |  
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