**** SECTION 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION ****

MSDS Name: Neutral Red
Catalog Numbers:
    S80101, N129 25, N129-25, N12925, S49083, S49085
Synonyms:
    Neclear fast red; Toluylene red; Neutral red W; Neutral red chloride,
    Basic red 5, CI 50040
Company Identification:  Fisher Scientific
                        1 Reagent Lane
                        Fairlawn, NJ  07410
For information, call:  201-796-7100
Emergency Number:       201-796-7100
For CHEMTREC assistance, call: 800-424-9300
For International CHEMTREC assistance, call: 703-527-3887

         **** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
|      CAS#      |              Chemical Name           |    %     |  EINECS#  |
|----------------|--------------------------------------|----------|-----------|
|      553-24-2  |Neutral red                           |  100.0   | 209-035-8 |
+----------------+--------------------------------------+----------+-----------+
         Hazard Symbols: None Listed.
         Risk Phrases: None Listed.

                 **** SECTION 3 - HAZARDS IDENTIFICATION ****

                              EMERGENCY OVERVIEW
Appearance:  red-brown to green.
Caution! The toxicological properties of this material have not been
fully investigated. May cause eye and skin irritation. May cause
respiratory and digestive tract irritation.
Target Organs: None.

Potential Health Effects
    Eye:
         Dust may cause mechanical irritation.
    Skin:
         May cause skin irritation.
    Ingestion:
         May cause gastrointestinal irritation with nausea, vomiting and
         diarrhea. 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:
         Get medical aid if irritation develops or persists. Flush skin with
         plenty of soap and water.
    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 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:
         Treat symptomatically and

                 **** 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:
         In case of fire, use water, dry chemical, chemical foam, or
         alcohol-resistant foam.
    Autoignition Temperature:Not applicable.
    Flash Point:           Not applicable.
    Explosion Limits, lower:Not available.
    Explosion Limits, upper:Not available.
    NFPA Rating: (estimated) Health: 1; Flammability: 0; Reactivity: 0

               **** 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, then place into a suitable container for
         disposal. 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 skin
         and eyes. Avoid ingestion and inhalation.
    Storage:
         Store in a cool, dry place. Keep containers tightly closed.

         **** 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 general or
         local exhaust ventilation to keep airborne concentrations below the
         permissible exposure limits.

                                Exposure Limits
+--------------------+-------------------+-------------------+-----------------+
|   Chemical Name    |        ACGIH      |       NIOSH       |OSHA - Final PELs|
|--------------------|-------------------|-------------------|-----------------|
| Neutral red        |none listed        |none listed        |none listed      |
+--------------------+-------------------+-------------------+-----------------+

    OSHA Vacated PELs:
         Neutral red:
            No OSHA Vacated PELs are listed for this chemical.

    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 29CFR
                      1910.134 or European Standard EN 149. Always use a
                      NIOSH or European Standard EN 149 approved respirator
                      when necessary.

            **** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****

Physical State:             Solid
Appearance:                 red-brown to green
Odor:                       none reported
pH:                         Not available.
Vapor Pressure:             Not available.
Vapor Density:              Not available.
Evaporation Rate:           Not available.
Viscosity:                  Not available.
Boiling Point:              Not available.
Freezing/Melting Point:     554 deg F
Decomposition Temperature:  554 deg F
Solubility in water:        4.0%
Specific Gravity/Density:   Not available.
Molecular Formula:          C15 H17 Cl N4
Molecular Weight:           288.5988

                **** SECTION 10 - STABILITY AND REACTIVITY ****

    Chemical Stability:
         Stable under normal temperatures and pressures.
    Conditions to Avoid:
         Incompatible materials, dust generation, excess heat.
    Incompatibilities with Other Materials:
         Strong oxidizing agents.
    Hazardous Decomposition Products:
         Hydrogen chloride, nitrogen oxides, carbon monoxide, carbon dioxide.
    Hazardous Polymerization: Has not been reported.

               **** SECTION 11 - TOXICOLOGICAL INFORMATION ****

    RTECS#:
         CAS# 553-24-2: SG1400000
    LD50/LC50:
         Not available.
    Carcinogenicity:
      Neutral red -
         Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
    Epidemiology:
         No data available.
    Teratogenicity:
         No data available.
    Reproductive Effects:
         No data available.
    Neurotoxicity:
         No data available.
    Mutagenicity:
         No data available.
    Other Studies:
         No data available.

                 **** SECTION 12 - ECOLOGICAL INFORMATION ****
 
 

                **** SECTION 13 - DISPOSAL CONSIDERATIONS ****

Chemical waste generators must determine whether a discarded chemical
is classified as a hazardous waste.
US EPA guidelines for the classification determination are listed in
40 CFR Parts 261.3. Additionally, waste generators must consult state
and local hazardous waste regulations to ensure complete and accurate
classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.

                 **** SECTION 14 - TRANSPORT INFORMATION ****

    US DOT
         No information available
    Canadian TDG
         No information available.

                 **** SECTION 15 - REGULATORY INFORMATION ****

US FEDERAL
    TSCA
         CAS# 553-24-2 is listed on the TSCA inventory.
       Health & Safety Reporting List
         None of the chemicals are on the Health & Safety Reporting List.
       Chemical Test Rules
         None of the chemicals in this product are under a Chemical Test Rule.
       Section 12b
         None of the chemicals are listed under TSCA Section 12b.
       TSCA Significant New Use Rule
         None of the chemicals in this material have a SNUR under TSCA.
    SARA
       Section 302 (RQ)
         None of the chemicals in this material have an RQ.
       Section 302 (TPQ)
         None of the chemicals in this product have a TPQ.
       Section 313
         No chemicals are reportable under Section 313.
    Clean Air Act:
         This material does not contain any hazardous air pollutants.
         This material does not contain any Class 1 Ozone depletors.
         This material does not contain any Class 2 Ozone depletors.
    Clean Water Act:
         None of the chemicals in this product are listed as Hazardous
         Substances under the CWA.
         None of the chemicals in this product are listed as Priority
         Pollutants under the CWA.
         None of the chemicals in this product are listed as Toxic Pollutants
         under the CWA.
    OSHA:
         None of the chemicals in this product are considered highly hazardous
         by OSHA.
STATE
    Neutral red is not present on state lists from CA, PA, MN, MA, FL, or
    NJ.
    California No Significant Risk Level:
    None of the chemicals in this product are listed.
European/International Regulations
    European Labeling in Accordance with EC Directives
         Hazard Symbols: Not available.
         Risk Phrases:
         Safety Phrases:
  WGK (Water Danger/Protection)
         CAS# 553-24-2: 1
  United Kingdom Occupational Exposure Limits

  Canada
         CAS# 553-24-2 is listed on Canada's DSL List.
         This product has a WHMIS classification of Not controlled..
         CAS# 553-24-2 is not listed on Canada's Ingredient Disclosure List.
  Exposure Limits

                 **** SECTION 16 - ADDITIONAL INFORMATION ****

    MSDS Creation Date: 12/12/1997  Revision #1 Date:  8/02/2000

    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.