Supplier£ºD&J Chemicals Co., Ltd.
Trade Name£ºL-Cysteine
Molecular Formula: C3H7NO2S
Molecular Weight:
CAS No:52-90-4
EINECS No:200-158-2
Chemicalk family£ºOrganic Chemicals
Chemical Name:L-2-amino-3-mercaptopropionic acid, cysteine, l-beta-mercaptoalanine
Appearance£ºWhite solid
Odour£ºNo information found.
Melting Piont (¡æ)£º220£¨decomposes£©
Boliting point (¡æ)£ºNo information found
Density (g cm-3):No information found
Specific Gravity:No information found
Water Solubility£º280 g/l at 25¡æ.
Emergency Overview:
CAUTION! MAY BE HARMFUL IF SWALLOWED.
Potential Health Effects
Inhalation:
No adverse health effects expected from inhalation.
Ingestion:
Large oral doses may cause general depressed activity.
Skin Contact:
Not expected to be a health hazard from skin exposure.
Eye Contact:
Not expected to be a health hazard.
Chronic Exposure:
No adverse health effects expected.
Aggravation of Pre-existing Conditions:
No information found.
Inhalation:
Not expected to require first aid measures. Remove to fresh air. Get medical attention for any breathing difficulty.
Ingestion:
Not expected to require first aid measures. If large amounts were swallowed, give water to drink and get medical advice.
Skin Contact:
Not expected to require first aid measures. Wash exposed area with soap and water. Get medical advice if irritation develops.
Eye Contact:
Not expected to require first aid measures. Wash thoroughly with running water. Get medical advice if irritation develops.
Fire:
Not considered to be a fire hazard. As with most organic solids, fire is possible at elevated temperatures or by contact with an ignition source.
Explosion:
Not considered to be an explosion hazard.
Fire Extinguishing Media:
Dry chemical, foam, water or carbon dioxide.
Special Information:
Use protective clothing and breathing equipment appropriate for the surrounding fire.
Ventilate area of leak or spill. Wear appropriate personal protective equipment as specified in Section 8. Spills: Sweep up and containerize for reclamation or disposal. Vacuuming or wet sweeping may be used to avoid dust dispersal.
Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect from physical damage. Separate from oxidizing materials. Store in the dark. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.
Airborne Exposure Limits:
None established.
Ventilation System:
Not expected to require any special ventilation.
Personal Respirators (NIOSH Approved):
Not expected to require personal respirator usage. If necessary, use a dust mask.
Skin Protection:
Wear protective gloves and clean body-covering clothing.
Eye Protection:
Safety glasses. Maintain eye wash fountain and quick-drench facilities in work area.
Stability:
Stable under ordinary conditions of use and storage.
Hazardous Decomposition Products:
May form hydrogen sulfide and oxides of sulfur, nitrogen and carbon.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Oxidizers.
Conditions to Avoid:
Incompatibles.
Harmful if swallowed. Irritant.
ORL-RAT LD50 1890 mg kg-1
SCU-RAT LD50 1550 mg kg-1
ORL-MUS LD50 660 mg kg-1
Environmental Fate:
No information found.
Environmental Toxicity:
No information found.
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal, state and local requirements.
Not regulated.
NFPA Ratings: Health: 1 Flammability: 0 Reactivity: 0
Label Hazard Warning:
CAUTION! MAY BE HARMFUL IF SWALLOWED.
Label Precautions:
Wash thoroughly after handling.
Label First Aid:
If swallowed, give several glasses of water to drink to dilute. If large amounts were swallowed or symptoms occur, get medical advice. Never give anything by mouth to an unconscious person.
Product Use:
Laboratory Reagent.
Revision Information:
MSDS Section(s) changed since last revision of document include: 3, 8.
Disclaimer:
The information above is believed to be accurate. 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, of damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, even if the company has been advised of the possibility of such damages.