SIGMA-ALDRICH 
Material Safety Data Sheet 
Date Printed: 09/OCT/2003 
Date Updated: 09/APR/2002 
Version 1.1 
According to 91/155/EEC 
1 - Product and Company Information 
Product Name QUISQUALIC ACID 
Product Number 83385 
Company Sigma-Aldrich Chemie GmbH 
Riedstrasse 2 
89555 Steinheim 
Germany 
Technical Phone # 49-89-6513(0)-1444 
Fax 49-7329-97-2319 
Emergency Phone # 49 7329 97 2323 
2 - Composition/Information on Ingredients 
Product Name CAS # EC no 
(+)-QUISQUALIC ACID (SYNTHETIC) 52809-07-1 None 
Formula C5H7N3O5 
Molecular Weight 189.1 AMU 
3 - Hazards Identification 
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT 
Harmful by inhalation, in contact with skin and if swallowed. 
4 - First Aid Measures 
AFTER INHALATION 
If inhaled, remove to fresh air. If not breathing give 
artificial respiration. If breathing is difficult, give oxygen. 
AFTER SKIN CONTACT 
In case of skin contact, flush with copious amounts of water for 
at least 15 minutes. Remove contaminated clothing and shoes. 
Call a physician. 
AFTER EYE CONTACT 
In case of contact with eyes, flush with copious amounts of 
water for at least 15 minutes. Assure adequate flushing by 
separating the eyelids with fingers. Call a physician. 
AFTER INGESTION 
If swallowed, wash out mouth with water provided person is 
conscious. Call a physician. 
5 - Fire Fighting Measures 
EXTINGUISHING MEDIA 
Suitable: Water spray. Carbon dioxide, dry chemical powder, or 
appropriate foam.
SPECIAL RISKS 
Specific Hazard(s): Emits toxic fumes under fire conditions. 
SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS 
Wear self-contained breathing apparatus and protective clothing 
to prevent contact with skin and eyes. 
6 - Accidental Release Measures 
PERSONAL PRECAUTION PROCEDURES TO BE FOLLOWED IN CASE OF LEAK OR SPILL 
Evacuate area. 
PROCEDURE(S) OF PERSONAL PRECAUTION(S) 
Wear self-contained breathing apparatus, rubber boots, and heavy 
rubber gloves. 
METHODS FOR CLEANING UP 
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. 
7 - Handling and Storage 
HANDLING 
Directions for Safe Handling: Do not breathe dust. Avoid contact 
with eyes, skin, and clothing. Avoid prolonged or repeated 
exposure. 
STORAGE 
Conditions of Storage: Keep tightly closed. 
Store at 2-8°C 
8 - Exposure Controls / Personal Protection 
ENGINEERING CONTROLS 
Safety shower and eye bath. Mechanical exhaust required. 
GENERAL HYGIENE MEASURES 
Wash thoroughly after handling. 
PERSONAL PROTECTIVE EQUIPMENT 
Respiratory Protection: Government approved respirator. 
Hand Protection: Compatible chemical-resistant gloves. 
Eye Protection: Chemical safety goggles. 
9 - Physical and Chemical Properties 
Appearance Color: White 
Form: Powder 
Property Value At Temperature or Pressure 
pH N/A 
BP/BP Range N/A 
MP/MP Range N/A 
Flash Point N/A 
Flammability N/A 
Autoignition Temp N/A 
Oxidizing Properties N/A 
Explosive Properties N/A 
Explosion Limits N/A 
Vapor Pressure N/A 
FLUKA - 83385 www.sigma-aldrich.com Page 2
Partition Coefficient N/A 
Viscosity N/A 
Vapor Density N/A 
Saturated Vapor Conc. N/A 
Evaporation Rate N/A 
Bulk Density N/A 
Decomposition Temp. N/A 
Solvent Content N/A 
Water Content N/A 
Surface Tension N/A 
Conductivity N/A 
Miscellaneous Data N/A 
Solubility Solvent: 20 mg/ml NH4OH 1 M clear, colorless 
10 - Stability and Reactivity 
STABILITY 
Stable: Stable. 
HAZARDOUS DECOMPOSITION PRODUCTS 
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide, 
Nitrogen oxides. 
HAZARDOUS POLYMERIZATION 
Hazardous Polymerization: Will not occur 
11 - Toxicological Information 
SIGNS AND SYMPTOMS OF EXPOSURE 
To the best of our knowledge, the chemical, physical, and 
toxicological properties have not been thoroughly investigated. 
ROUTE OF EXPOSURE 
Skin Contact: May cause skin irritation. 
Skin Absorption: Harmful if absorbed through skin. 
Eye Contact: May cause eye irritation. 
Inhalation: Harmful if inhaled. Material may be irritating to 
mucous membranes and upper respiratory tract. 
Ingestion: Harmful if swallowed. 
TARGET ORGAN INFORMATION 
Nerves. 
CONDITIONS AGGRAVATED BY EXPOSURE 
May cause nervous system disturbances. 
12 - Ecological Information 
No data available. 
13 - Disposal Considerations 
SUBSTANCE DISPOSAL 
Contact a licensed professional waste disposal service to dispose 
of this material. 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. 
14 - Transport Information 
RID/ADR 
FLUKA - 83385 www.sigma-aldrich.com Page 3
Non-hazardous for road transport. 
IMDG 
Non-hazardous for sea transport. 
IATA 
Non-hazardous for air transport. 
15 - Regulatory Information 
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES 
INDICATION OF DANGER: Xn 
Harmful. 
R-PHRASES: 20/21/22 
Harmful by inhalation, in contact with skin and if swallowed. 
S-PHRASES: 26 36 
In case of contact with eyes, rinse immediately with plenty of 
water and seek medical advice. Wear suitable protective 
clothing. 
16 - Other Information 
WARRANTY 
The above information is believed to be correct but does not 
purport to be all inclusive and shall be used only as a guide. 
Sigma-Aldrich Inc., shall not be held liable for any damage 
resulting from handling or from contact with the above product. 
See reverse side of invoice or packing slip for additional terms 
and conditions of sale. Copyright 2003 Sigma-Aldrich Co. License 
granted to make unlimited paper copies for internal use only. 
DISCLAIMER 
For R&D use only. Not for drug, household or other uses. 
FLUKA - 83385 www.sigma-aldrich.com Page 4