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Tyrosine,O-(4-hydroxyphenyl)-3,5-diiodo-

SECTION V HEALTH HAZARD DATA
MATERIAL SAFETY DATA SHEET TT 250
Threshold Limited Value
ALDON None established by ACGIH 1992-93.
1533 W.Henrietta Rd.
TT 250
Avon, New York 14414 MSDS No.
?
CORPORATION January 8, 1997
Effective Date
(716) 226-6177
Effects of Overexposure May be harmful by ingestion. May cause irritation. To the best of our
knowledge, the chemical, physical and toxicological properties have not
SECTION I NAME 24 HOUR EMERGENCY ASSISTANCE been thoroughly investigated. Specific data is not available. Exercise
appropriate procedures to minimize potential hazards.
Product L-TRIIODOTHYRONINE
CHEMTREC Health 2
800-424-9300
Chemical
Emergency and EYE CONTACT: Flush thoroughly with water for at least 15 minutes, lifting
Triothyrone, Liothyronine
Synonyms Fire 1
Day 716-226-6177 upper and lower eyelids occasionally. Get immediate medical attention.
First Aid Procedures
Formula C15H12I3NO4 SKIN: Wash thoroughly with soap and water. Get medical attention if
Reactivity 1
NFPA irritation persists. INHALATION: Remove to fresh air. If not breathing, give
HAZARD RATING HMIS *
Unit Size Up to 2.5 Kg. artificial respiration. If breathing is difficult, give oxygen. Get medical
LEAST SLIGHT MODERATE HIGH EXTREME
attention. INGESTION: If swallowed, if conscious, give one or two glasses
0 1 2 3 4
C.A.S. No. Mixture. of water to drink, induce vomiting and call physician immediately. Never
SECTION II INGREDIENTS OF MIXTURES give anything by mouth to an unconscious person.
SECTION VI REACTIVITY DATA
Principal Component(s) % TLV Units
Conditions to Avoid
Stability Unstable Keep from exposure to light, excessive
L-Triiodothyronine: (CAS No. 6893-02-3) 97.3% None established.
temperature and heat and moisture.
Stable X
Thyroxine: (CAS No. 51-48-9) 0.6% None established. Incompatibility
Strong oxidizing materials.
(Materials to Avoid)
Diiodothyronine: (CAS No. 534-51-0) 1.5% None established.
Hazardous Thermal heating or combustion will produce carbon dioxide and probably
CAUTION! SPECIFIC HEALTH HAZARD DATA NOT AVAILABLE. USE WITH CARE.
carbon monoxide.
Decomposition Products
SECTION III PHYSICAL DATA
Conditions to Avoid
Hazardous Polymerization
Specific Gravity (H2O = 1)
Melting Point (??F) 236-237??C (456-458??F) Data not listed.
May Occur Will Not Occur Not applicable.
Percent Volatile
Boiling Point (??F) Decomposes. N/A
by Volume (%) X
Evaporation Rate
SECTION VII SPILL OR LEAK PROCEDURES
Vapor Pressure (mm Hg) Negligible as solid. N/A
=1)
(

Steps to be taken in case
Vapor Density (Air=1) Data not listed.
material is released or spilled Wear suitable protective clothing, dissolve in water and flush to sewer
Solubility in Water Insoluble in water. with copious amounts of water. Wash spill area with soap and water.
Appearance & Odor Tan colored crystalline powder; no odor.
Discharge, treatment, or disposal may be subject to Federal, State or Local laws.
Waste Disposal Method
SECTION IV FIRE AND EXPLOSION HAZARD DATA These disposal guidelines are intended for the disposal of catalog-size quantities only.
Lower
Flammable Limits in Air Upper
Flash Point
Dispose of in an approved incinerator equipped with an afterburner and scrubber
Non-flammable. N/A
% by Volume
(Method Used)
or contract with a licensed waste disposal agency.
Extinguisher
SECTION VIII SPECIAL PROTECTION INFORMATION
Carbon dioxide (CO2); dry chemical (ABC); foam.
Media
None needed in normal laboratory handling. If dusty conditions prevail, work in a
Respiration Protection
ventilation hood and wear a NIOSH/MSHA approved respirator.
(Specify Type)
SPECIAL FIREFIGHTING
Recommended. No.
Local Exhaust Special
In fire conditions, wear a NIOSH/MSHA-approved self-contained
PROCEDURES Ventilation Recommended. Adequate to maintain below exposure limit.
Mechanical (General) Other
breathing apparatus and eye protection, if not supplied.
Protective Gloves Eye Protection
Rubber. Chemical safety glasses.
Other Protective
Chemical goggles, lab coat, apron, safety showers, eye wash station, proper gloves.
Equipment

SECTION IX SPECIAL PRECAUTIONS
Precautions to be Taken
UNUSUAL FIRE AND Store in a cool, dry place away from oxidizing materials. Protect from light.
in Handling & Storing
Wash thoroughly after handling.
EXPLOSION HAZARDS Keep container tightly closed when not in use.

Read label on container before using. Do not wear contact lenses when working with chemicals.
Other Precautions
Fire or excessive heat may produce hazardous decomposition products;
can react with oxidizing materials. Avoid prolonged breathing dust. Avoid contact with eyes or prolonged
contact with skin. Remove and wash contaminated clothing.

For laboratory use only. Not for drug, food or household use. Keep out of reach of children.
Chemical Safety
Approved
Revision Date Michael Raszeja M No. 2 1/08/97 Coordinator
D.O.T. NON REGULATED. The information contained herein is furnished without warranty of any kind. Employers should use this information only as a supplement to other information
gathered by them and must make independent determinations of suitability and completeness of information from all sources to assure proper use of these
Approved by U.S. Department of Labor "essentially similar" to form OSHA-20 materials and the safety and health of employees. * Hazardous Materials Industrial Standards. Printed on recycled paper.

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