Section I.Chemical Product and Company Identification
Chemical Name L-(-)-Cystine Dihydrochloride
Portland OR
Synonym L-Cystine, radical ion(1+), dihydrochloride (9CI)
Chemical Formula C6H12N2O4S2•2HCl
13059-63-7
CAS Number
Section II. Composition and Information on Ingredients
Chemical Name CAS Number Percent (%) TLV/PEL Toxicology Data
L-(-)-Cystine Dihydrochloride 13059-63-7 Min. 98.0 Not available. Not available.
(HPLC,T)
Section III. Hazards Identification
No specific information is available in our data base regarding the toxic effects of this material for humans. However,
Acute Health Effects
exposure to any chemical should be kept to a minimum. Skin and eye contact may result in irritation. May be harmful if
inhaled or ingested. Always follow safe industrial hygiene practices and wear proper protective equipment when handling
this compound.
Follow safe industrial hygiene practices and always wear proper protective equipment when handling this compound.
CARCINOGENIC EFFECTS : Not available.
Chronic Health Effects
MUTAGENIC EFFECTS : Not available.
TERATOGENIC EFFECTS : Not available.
DEVELOPMENTAL TOXICITY: Not available.
Repeated or prolonged exposure to this compound is not known to aggravate existing medical conditions.
Section IV. First Aid Measures
Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15
Eye Contact
minutes. Get medical attention.
In case of contact, immediately flush skin with plenty of water. Remove contaminated clothing and shoes. Wash clothing
Skin Contact
before reuse. Thoroughly clean shoes before reuse. Get medical attention.
Inhalation If the victim is not breathing, perform mouth-to-mouth resuscitation. Loosen tight clothing such as a collar, tie, belt or
waistband. If breathing is difficult, oxygen can be administered. Seek medical attention if respiration problems do not
improve.
Ingestion INDUCE VOMITING by sticking finger in throat. Lower the head so that the vomit will not reenter the mouth and throat.
Loosen tight clothing such as a collar, tie, belt or waistband. If the victim is not breathing, perform mouth-to-mouth
resuscitation. Examine the lips and mouth to ascertain whether the tissues are damaged, a possible indication that the toxic
material was ingested; the absence of such signs, however, is not conclusive.
Section V. Fire and Explosion Data
Not available.
May be combustible at high temperature. Auto-Ignition
Flammability
Flammable Limits Not available.
Flash Points Not available.
Combustion Products These products are toxic carbon oxides (CO, CO2), nitrogen oxides (NO, NO2), sulfur oxides (SO2, SO3...). halogenated
compounds.
WARNING: Highly toxic HCl gas is produced during combustion.
Fire Hazards
Not available.
Risks of explosion of the product in presence of mechanical impact: Not available.
Explosion Hazards
Risks of explosion of the product in presence of static discharge: Not available.
Fire Fighting Media SMALL FIRE: Use DRY chemical powder.
LARGE FIRE: Use water spray, fog or foam. DO NOT use water jet.
and Instructions
Consult with local fire authorities before attempting large scale fire-fighting operations.
Continued on Next Page
L-(-)-Cystine Dihydrochloride
Section VI. Accidental Release Measures
Spill Cleanup Use a shovel to put the material into a convenient waste disposal container. Finish cleaning the spill by rinsing any
contaminated surfaces with copious amounts of water. Consult federal, state, and/or local authorities for assistance on
Instructions
disposal.
Section VII. Handling and Storage
Handling and Storage Keep away from heat. Mechanical exhaust required. When not in use, tightly seal the container and store in a dry, cool
place. Avoid excessive heat and light. Do not breathe dust.
Information
Always store away from incompatible compounds such as oxidizing agents.
Section VIII. Exposure Controls/Personal Protection
Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended
Engineering Controls
exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to airborne contaminants
below the exposure limit.
Splash goggles. Lab coat. Dust respirator. Boots. Gloves. Suggested protective clothing might not be sufficient; consult a
Personal Protection
specialist BEFORE handling this product. Be sure to use a MSHA/NIOSH approved respirator or equivalent.
Exposure Limits Not available.
Section IX. Physical and Chemical Properties
Solid. (White crystalline powder.) Solubility
Physical state @ 20°C Not available.
Not available.
Specific Gravity
313.22
Molecular Weight Partition Coefficient Not available.
Boiling Point Not available. Vapor Pressure Not applicable.
Not available. Not available.
Melting Point Vapor Density
Not available. Volatility Not available.
Refractive Index
Not available.
Critical Temperature Not available. Odor
Viscosity Not available. Taste Not available.
Section X. Stability and Reactivity Data
Stability
This material is stable if stored under proper conditions. (See Section VII for instructions)
Conditions of Instability Avoid excessive heat and light.
Incompatibilities
Reactive with oxidizing agents.
Section XI. Toxicological Information
Not available.
RTECS Number
Routes of Exposure Eye Contact. Ingestion. Inhalation.
Not available.
Toxicity Data
Chronic Toxic Effects CARCINOGENIC EFFECTS : Not available.
MUTAGENIC EFFECTS : Not available.
TERATOGENIC EFFECTS : Not available.
DEVELOPMENTAL TOXICITY: Not available.
Repeated or prolonged exposure to this compound is not known to aggravate existing medical conditions.
Acute Toxic Effects No specific information is available in our data base regarding the toxic effects of this material for humans. However,
exposure to any chemical should be kept to a minimum. Skin and eye contact may result in irritation. May be harmful if
inhaled or ingested. Always follow safe industrial hygiene practices and wear proper protective equipment when handling this
compound.
Follow safe industrial hygiene practices and always wear proper protective equipment when handling this compound.
Section XII. Ecological Information
Not available.
Ecotoxicity
Not available.
Environmental Fate
Continued on Next Page
L-(-)-Cystine Dihydrochloride
Section XIII. Disposal Considerations
Waste Disposal Recycle to process, if possible. Consult your local regional authorities. You may be able to dissolve or mix material with a
combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber system. Observe all
federal, state and local regulations when disposing of the substance.
Section XIV. Transport Information
Not a DOT controlled material (United States).
DOT Classification
PIN Number Not applicable.
Proper Shipping Name Not applicable.
Packing Group (PG) Not applicable.
DOT Pictograms
Section XV. Other Regulatory Information and Pictograms
TSCA Chemical Inventory This product is NOT on the EPA Toxic Substances Control Act (TSCA) inventory. The following notices are required by 40
CFR 720.36 (C) for those products not on the inventory list:
(EPA)
(i) These products are supplied solely for use in research and development by or under the supervision of a technically
qualified individual as defined in 40 CFR 720.0 et sec.
(ii) The health risks of these products have not been fully determined. Any information that is or becomes available will be
supplied on an MSDS sheet.
WHMIS Classification Not controlled under WHMIS (Canada).
(Canada)
EINECS Number (EEC) Not available.
EEC Risk Statements Not available.
SECTION 16 - ADDITIONAL INFORMATION
N/A
