EMS CATALOG NO: 14850
EMS PRODUCT: Eosin Y, Certified
DATE:   06/25/96
PAGE NUMBER:  One of 4


MATERIAL SAFETY DATA SHEET

The information contained herein is based on data considered
accurate. However, no warranty is expressed or implied
regarding the accuracy of these data or the results to be
obtained from the use thereof.

Electron Microscopy Sciences assumes no responsibility for
personal injury or property damage to vendees, users or
third parties caused by the material. Such vendees or users
assume all risks associated with the use of the material.


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FOR PRODUCT AND SALES INFORMATION
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CONTACT ELECTRON MICROSCOPY SCIENCES OFFICE ABOVE.

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PRODUCT IDENTIFICATION
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PRODUCT NAME:  Eosin Y, Certified

CAS NUMBER: 548-26-5

FORMULA: C20H8BR4O5

SYNONYMS: 

Aizen Eosin GH; Bromo Acid; Bromo B; Bromo 4DC; Bromoeosine; Bromo
FL; Bromofluoresceic Acid; Bromo Fluorescein; Bromo JPS; Bromo TS;
Bromo X-100; Bromo XX; Bronze Bromo; Certiqual Eosine; Cerven Kysela
87 (CZECH); C.I. 45380; C.I. Acid Red 87; D&C 22; D&C Red No. 22;
Disodium Eosin; Eosin; Eosine; Eosine B; Eosine BPC; Eosine BS-SF;Eosine
DA; Eosine DWC 73; Eosine Extra Conc. A. Export; Eosine FA; Eosine
G; Eosine 3G; Eosine GF; Eosine J; Eosine OJ; Eosine S13 (Bluish);
Eosine Sodium Salt; Eosine W/S; Eosine Y; Eosine 3Y; Eosine YB; Eosine
Yellowish; Eosine Yellowish-(YS); Eosine YS; Eosin G; Eosin Gelblich
(GERMAN); Eosin Y; Eosin YS; Fenazo Eosine XG; Hidacid
* * * CATALOG NO: 14850 * * * 

Boiling Bromo; Hidacid Bromo Acid Regular; Hidacid Dibromo Fluorescein;
Hidacid Eosine Soda Salt; Hidacid White Bromo; Irgalite Bronze Red
CL; Phloxine Red 20-7600; Phloxine Toner B; Phlox Red Toner X-1354;
Pure Eosine YY; 11445 Red; 11731 Red; Sodium Eosinate; Sodium Eosine;
Eosine BS; Spiro (Isobenzofuran-1(3H),9'-(9H)Xanthen)-3-One, 2',4',5',7'-Tetrabromo-3', 6-Dihydroxy-, 2NA; Symuler Eosin Toner;
2,4,5,7-Tetrabromo-3, 6-Fluorandiol; Tetrabromofluorescein;
Tetrabromofluorescein D; 2',4',5',7'-Tetrabromofluorscein Disodium
Salt; Tetrabromofluorescein S; Tetrabromofluorscein Soluble; Toyo
Eosine G; 1903 Yellow Pink.
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TOXICITY DATA  
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RTECS NO: LM5850000
Fluorescein, 2',4',5',7-Tetrabromo-, Disodium Salt
TOXICITY DATA: 

ORL-MUS LD50: 2344 MG/KG EAPHA6 24,125,81

REVIEWS, STANDARDS, AND REGULATIONS:

IARC CANCER REVIEW: Animal inadequate evidence imemdt 15,183,77.

EPA GENETOX PROGRAM 1988, INCONCLUSIVE: B Subtilis Rec Assay; Histidine
Reversion-Ames Test.

EPA GENETOX PROGRAM 1988, INCONCLUSIVE: S Cerevisiae Gene Conversion
EPA TSCA Chemical Inventory, June 1990.

Only selected Registry of Toxic Effects of Chemical Substances (RTECS)
data is presented here. See actual entry in RTECS for complete information.
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HEALTH HAZARD DATA
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ACUTE EFFECTS: May be harmful by inhalation, ingestion, or skin 
absorption. May cause eye irritation. May cause skin irritation.

To the best of our knowledge, the chemical, physical, and toxicological
properties have not been thoroughly investigated.

FIRST AID: 

In case of contact, immediately flush eyes with copious amounts
of water for at least 15 minutes.




In case of contact, immediately wash skin with soap and copious 
amounts of water.

If inhaled, remove to fresh air. If not breathing, give artificial
respiration. If breathing is difficult, give oxygen.

If swallowed, wash out mouth with water provided person is conscious.

Call a physician. Wash contaminated clothing before reuse.
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PHYSICAL DATA
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No physical data available.    
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FIRE AND EXPLOSION HAZARD DATA
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EXTINGUISHING MEDIA: Water spray. Carbon Dioxide, Dry Chemical 
Powder, Alcohol or Polymer Foam.

SPECIAL FIRE FIGHTING
PROCEDURES: Wear self-contained breathing apparatus and protective
clothing to prevent contact with skin and eyes.
UNUSUAL FIRE AND
EXPLOSION HAZARDS: Emits toxic fumes under fire conditions.
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REACTIVITY DATA 
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INCOMPATIBILITIES Strong oxidizing agents.

HAZARDOUS COMBUSTION OR DECOMPOSITION PRODUCTS
TOXIC FUMES OF: Carbon Monoxide, Carbon Dioxide, Hydrogen Bromide
Gas.
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SPILL OR LEAK PROCEDURES 
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STEPS TO BE TAKEN IF MATERIAL IS RELEASED OR SPILLED:

Wear respirator, chemical safety goggles, rubber boots, and heavy
rubber gloves. Sweep up, place in a bag and hold for waste disposal.
Avoid raising dust. Ventilate area and wash spill site after material
pickup is complete.




WASTE DISPOSAL METHOD:

Dissolve or mix the material with a combustible solvent and burn
in a chemical incinerator equipped with an afterburner and scrubber.

Observe all Federal, State and Local environmental regulations.
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PRECAUTIONS TO BE TAKEN IN HANDLING AND STORAGE
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Chemical safety goggles.
Compatible chemical-resistant gloves.
NIOSH/MSHA-approved respirator.
Safety shower and eye bath.
Mechanical exhaust required.
Do not breath dust.
Do not get in eyes, on skin, on clothing.
Avoid prolonged or repeated exposure.
Wash thoroughly after handling.
Keep tightly closed.
Store in a cool dry place.