SAFETY DATA SHEETS

According to the UN GHS revision 10

Version: 1.0

Creation Date: July 15, 2019

Revision Date: July 15, 2019

SECTION 1: Identification

1.1GHS Product identifier

Product name	L-cysteine

1.2Other means of identification

Product number	-
Other names	H-CYS-OH; H-Cys-OH; CYSH

1.3Recommended use of the chemical and restrictions on use

Identified uses	Industrial and scientific research use.
Uses advised against	no data available

SECTION 2: Hazard identification

2.1Classification of the substance or mixture

Acute toxicity - Category 4, Oral

2.2GHS label elements, including precautionary statements

Pictogram(s)
Signal word	Warning
Hazard statement(s)	H302 Harmful if swallowed
Precautionary statement(s)
Prevention	P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product.
Response	P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth.
Storage	none
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

2.3Other hazards which do not result in classification

no data available

SECTION 3: Composition/information on ingredients

3.1Substances

Chemical name	Common names and synonyms	CAS number	EC number	Concentration
L-cysteine	L-cysteine	52-90-4	200-158-2	100%

SECTION 4: First-aid measures

4.1Description of necessary first-aid measures

If inhaled

Move the victim into fresh air. If breathing is difficult, give oxygen. If not breathing, give artificial respiration and consult a doctor immediately. Do not use mouth to mouth resuscitation if the victim ingested or inhaled the chemical.

Following skin contact

Take off contaminated clothing immediately. Wash off with soap and plenty of water. Consult a doctor.

Following eye contact

Rinse with pure water for at least 15 minutes. Consult a doctor.

Following ingestion

Rinse mouth with water. Do not induce vomiting. Never give anything by mouth to an unconscious person. Call a doctor or Poison Control Center immediately.

4.2Most important symptoms/effects, acute and delayed

no data available

4.3Indication of immediate medical attention and special treatment needed, if necessary

Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on the left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. Poisons A and B

SECTION 5: Fire-fighting measures

5.1Suitable extinguishing media

Suitable extinguishing media: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

5.2Specific hazards arising from the chemical

no data available

5.3Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

SECTION 6: Accidental release measures

6.1Personal precautions, protective equipment and emergency procedures

Avoid dust formation. Avoid breathing mist, gas or vapours.Avoid contacting with skin and eye. Use personal protective equipment.Wear chemical impermeable gloves. Ensure adequate ventilation.Remove all sources of ignition. Evacuate personnel to safe areas.Keep people away from and upwind of spill/leak.

6.2Environmental precautions

Prevent further spillage or leakage if it is safe to do so. Do not let the chemical enter drains. Discharge into the environment must be avoided.

6.3Methods and materials for containment and cleaning up

ACCIDENTAL RELEASE MEASURES: Personal precautions, protective equipment and emergency procedures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapors, mist or gas. Avoid breathing dust. Environmental precautions: Do not let product enter drains. Methods and materials for containment and cleaning up: Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers for disposal.

SECTION 7: Handling and storage

7.1Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

7.2Conditions for safe storage, including any incompatibilities

Keep container tightly closed in a dry and well-ventilated place. Store under inert gas. Air sensitive. Storage class (TRGS 510): Non Combustible Solids.

SECTION 8: Exposure controls/personal protection

8.1Control parameters

Occupational Exposure limit values

Component	L-cysteine
CAS No.	52-90-4
	Limit value - Eight hours		Limit value - Short term
	ppm	mg/m3	ppm	mg/m3
Latvia		2
	Remarks

 

Biological limit values

no data available

8.2Appropriate engineering controls

Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.

8.3Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Wear tightly fitting safety goggles with side-shields conforming to EN 166(EU) or NIOSH (US).

Skin protection

Wear fire/flame resistant and impervious clothing. Handle with gloves. Gloves must be inspected prior to use. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

If the exposure limits are exceeded, irritation or other symptoms are experienced, use a full-face respirator.

Thermal hazards

no data available

SECTION 9: Physical and chemical properties and safety characteristics

Physical state	Solid. Crystalline.
Colour	White.
Odour	no data available
Melting point/freezing point	220°C
Boiling point or initial boiling point and boiling range	293.9°C at 760 mmHg
Flammability	no data available
Lower and upper explosion limit/flammability limit	no data available
Flash point	131.5°C
Auto-ignition temperature	292 °C. Remarks:No pressure reported.
Decomposition temperature	no data available
pH	no data available
Kinematic viscosity	no data available
Solubility	In water: 280 g/L (25 °C)
Partition coefficient n-octanol/water	log Pow = -3.05. Remarks:Temperature and pH not given in the report.
Vapour pressure	0 Pa. Remarks:No temperature indicated in the report.
Density and/or relative density	1.496 g/cm³. Temperature:20 °C.
Relative vapour density	no data available
Particle characteristics	no data available

SECTION 10: Stability and reactivity

10.1Reactivity

no data available

10.2Chemical stability

Stable under recommended storage conditions.

10.3Possibility of hazardous reactions

no data available

10.4Conditions to avoid

no data available

10.5Incompatible materials

Incompatible materials: Strong oxidizing agents.

10.6Hazardous decomposition products

When heated to decomposition it emits very toxic fumes of /sulfur oxides and nitrogen oxides/.

SECTION 11: Toxicological information

Acute toxicity

• Oral: LD50 - rat (female) - 5.85 g/kg.
• Inhalation: no data available
• Dermal: LD50 - rat (male/female) - > 2 000 mg/kg bw.

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

no data available

Reproductive toxicity

no data available

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

SECTION 12: Ecological information

12.1Toxicity

• Toxicity to fish: LC50 - Danio rerio (previous name: Brachydanio rerio) - > 100 mg/L - 96 h.
• Toxicity to daphnia and other aquatic invertebrates: EC50 - Daphnia magna - > 100 mg/L - 48 h.
• Toxicity to algae: EC50 - Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum) - > 100 mg/L - 72 h.
• Toxicity to microorganisms: EC50 - activated sludge of a predominantly domestic sewage - > 1 000 mg/L - 3 h. Remarks:Respiration rate.

12.2Persistence and degradability

AEROBIC: Cysteine, present at 500 mg/L, reached 1.5, 2.4 and 4.7% of its theoretical BOD in 6, 12, and 24 hours, respectively, using an activated sludge inoculum at 2500 mg/L in the Warburg test. It is one of the more resistant of the amino acids(1).

12.3Bioaccumulative potential

An estimated BCF of 3 was calculated in fish for cysteine(SRC), using a log Kow of -2.49(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).

12.4Mobility in soil

Using a structure estimation method based on molecular connectivity indices(1), the Koc of cysteine can be estimated to be 3(SRC). According to a classification scheme(2), this estimated Koc value suggests that cysteine is expected to have very high mobility in soil. The pKa values of cysteine are 1.71, 8.33 and 10.78(3) indicating that this compound will exist as a zwitterion in the environment and zwitterions generally adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(4).

12.5Other adverse effects

no data available

SECTION 13: Disposal considerations

13.1Disposal methods

Product

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

SECTION 14: Transport information

14.1UN Number

ADR/RID: Not dangerous goods. (For reference only, please check.)

IMDG: Not dangerous goods. (For reference only, please check.)

IATA: Not dangerous goods. (For reference only, please check.)

14.2UN Proper Shipping Name

ADR/RID: Not dangerous goods. (For reference only, please check.)

IMDG: Not dangerous goods. (For reference only, please check.)

IATA: Not dangerous goods. (For reference only, please check.)

14.3Transport hazard class(es)

ADR/RID: Not dangerous goods. (For reference only, please check.)

IMDG: Not dangerous goods. (For reference only, please check.)

IATA: Not dangerous goods. (For reference only, please check.)

14.4Packing group, if applicable

ADR/RID: Not dangerous goods. (For reference only, please check.)

IMDG: Not dangerous goods. (For reference only, please check.)

IATA: Not dangerous goods. (For reference only, please check.)

14.5Environmental hazards

ADR/RID: No

IMDG: No

IATA: No

14.6Special precautions for user

no data available

14.7Transport in bulk according to IMO instruments

no data available

SECTION 15: Regulatory information

15.1Safety, health and environmental regulations specific for the product in question

Chemical name	Common names and synonyms	CAS number	EC number
L-cysteine	L-cysteine	52-90-4	200-158-2
European Inventory of Existing Commercial Chemical Substances (EINECS)			Listed.
EC Inventory			Listed.
United States Toxic Substances Control Act (TSCA) Inventory			Listed.
China Catalog of Hazardous chemicals 2015			Not Listed.
New Zealand Inventory of Chemicals (NZIoC)			Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS)			Listed.
Vietnam National Chemical Inventory			Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC)			Listed.
Korea Existing Chemicals List (KECL)			Listed.

SECTION 16: Other information

Information on revision

Creation Date	July 15, 2019
Revision Date	July 15, 2019

Package&Shipping

Qingdao Bravery International Trading Co., LTD. is located in the beautiful tourist city of Qingdao, is a comprehensive chemical enterprise which doing import and export business. Product range including, API, pharmacy intermediates,food additive,Surfactant ,fungicides and other general chemicals. etc.

With the developing world market, we adhere to the principle of "quality, service, integrity and development" ,Forge ahead,and constantly in pursuit of higher level of product quality and service.

We warmly welcome customers home and abroad to build mutual trust, mutual benefit and stable cooperation relation.

 

General items: import and export of goods; Technology import and export; Food additive sales; Feed additive sales; Sales of special chemical products (without hazardous chemicals); Sales of chemical products (excluding licensed chemical products); Livestock and fishery feed sales; Feed raw material sales; Fertilizer sales; Sales of bio-based materials; Health food (pre-packaged) sales; Food sales (pre-packaged food only); Sales of agricultural and sideline products; Pharmaceutical excipients sales; Drug wholesale

 

 

We could give you:

1.Best quality in your requirement

2.Competitive price in China market with standard high quality or customize

3.mature Technical support，Well-trained and professional technologist and sales with rich experience in the field for 5-10 years

4.Professional logistic support，Free sample and correct shipping documents dispatched according to regulations of different countries

All we want is win-win business. Send your inquiries, you will get it!

 

Why choose us:

1.Factory direct sales, so we can provide the competitive price and high quality product base on 5 years of production and R&D experience

2.It is available in stock for quick shipment. Products could be packaged according to customer’s specialized requirements.

3.The products can be transported by Courier, air or sea.

4.Customers will receive the most professional technical support and efficient service.

5.Any inquiries will be replied within 24hours.

6.High purity with test report.