Chemical Safety Data Sheet MSDS / SDS
L(+)-Lactic acid
Revision Date:2026-03-21Revision Number:1
Product identifier
- Product name: L(+)-Lactic acid
- CBnumber: CB1138319
- CAS: 79-33-4
- EINECS Number: 201-196-2
- Synonyms: L(+)-LACTIC ACID;(S)-(+)-2-HYDROXYPROPANOIC ACID
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses: For R&D use only. Not for medicinal, household or other use.
- Uses advised against: none
Company Identification
- Company: Chemicalbook
- Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
- Telephone: 010-86108875
GHS Label elements, including precautionary statements
-
Symbol(GHS)
- Signal wordDanger
P332+P313 IF SKIN irritation occurs: Get medical advice/attention.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P264 Wash skin thouroughly after handling.
Hazard statements
H318 Causes serious eye damage
H315 Causes skin irritation
Substance
- Product name: L(+)-Lactic acid
- Synonyms: L-LACTIC acid,L(+)-Lactic acid
- CAS: 79-33-4
- EC number: 201-196-2
- MF: C3H6O3
- MW: 90.08
4.1 Description of first-aid measures
General adviceFirst aiders need to protect themselves. Show this material safety data sheet to the doctor in attendance.
If inhaled
After inhalation: fresh air. Call in physician.
In case of skin contact
In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with water/ shower. Call a physician immediately.
In case of eye contact
After eye contact: rinse out with plenty of water. Immediately call in ophthalmologist.
Remove contact lenses.
If swallowed
Remove contact lenses.
After swallowing: make victim drink water (two glasses at most), avoid vomiting (risk of perforation). Call a physician immediately. Do not attempt to neutralise.
4.2 Most important symptoms and effects, both acute and delayed
The most important known symptoms and effects are described in the labelling (see section 2) and/or in section 11
4.3 Indication of any immediate medical attention and special treatment needed
No data available
4.4 Notes to physician
No data available
5.1 Extinguishing media
Suitable extinguishing mediaWater Foam Carbon dioxide (CO2) Dry powder
Unsuitable extinguishing media
For this substance/mixture no limitations of extinguishing agents are given.
5.2 Special hazards arising from the substance or mixture
Carbon oxides
Combustible.
Vapors are heavier than air and may spread along floors.
Forms explosive mixtures with air on intense heating.
Development of hazardous combustion gases or vapours possible in the event of fire.
Combustible.
Vapors are heavier than air and may spread along floors.
Forms explosive mixtures with air on intense heating.
Development of hazardous combustion gases or vapours possible in the event of fire.
5.3 Advice for firefighters
Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.
Prevent fire extinguishing water from contaminating surface water or the ground water system.
Prevent fire extinguishing water from contaminating surface water or the ground water system.
NFPA 704
3
0
1
| HEALTH | 3 | Short exposure could cause serious temporary or moderate residual injury (e.g. liquid hydrogen, sulfuric acid, calcium hypochlorite, hexafluorosilicic acid) | |
| FIRE | 0 | Materials that will not burn under typical fire conditions, including intrinsically noncombustible materials such as concrete, stone, and sand. Materials that will not burn in air when exposed to a temperature of 820 °C (1,500 °F) for a period of 5 minutes.(e.g. Carbon tetrachloride) | |
| REACT | 1 | Normally stable, but can become unstable at elevated temperatures and pressures (e.g. propene) | |
| SPEC. HAZ. |
6.1 Personal precautions, protective equipment and emergency procedures
Advice for non-emergency personnel: Do not breathe vapors, aerosols. Avoid substance contact. Ensure adequate ventilation. Evacuate the danger area, observe emergency procedures, consult an expert.
For personal protection see section 8.
For personal protection see section 8.
6.2 Environmental precautions
Do not let product enter drains.
6.3 Methods and materials for containment and cleaning up
Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions (see sections 7 and 10). Take up with liquid-absorbent material (e.g. Chemizorb® ).
Dispose of properly. Clean up affected area.
Dispose of properly. Clean up affected area.
6.4 Reference to other sections
For disposal see section 13.
7.1 Precautions for safe handling
For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilities
Storage conditionsTightly closed. Keep locked up or in an area accessible only to qualified or authorized persons.
Storage class
Storage class (TRGS 510): 8A: Combustible, corrosive hazardous materials
8.1 Control parameters
Ingredients with workplace control parametersContains no substances with occupational exposure limit values.
8.2 Exposure controls
Appropriate engineering controlsImmediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance.
Personal protective equipment
Eye/face protection
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Tightly fitting safety goggles
Skin protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands.
The selected protective gloves have to satisfy the specifications of Regulation (EU) 2016/425 and the standard EN 374 derived from it.
Full contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested: (KCL 740 / Aldrich Z677272, Size M)
Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested: (KCL 740 / Aldrich Z677272, Size M) data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374
If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the EC approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.
Body Protection
The selected protective gloves have to satisfy the specifications of Regulation (EU) 2016/425 and the standard EN 374 derived from it.
Full contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested: (KCL 740 / Aldrich Z677272, Size M)
Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested: (KCL 740 / Aldrich Z677272, Size M) data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374
If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the EC approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.
protective clothing
Respiratory protection
required when vapours/aerosols are generated.
Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system.
Control of environmental exposure
Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system.
Do not let product enter drains.
Information on basic physicochemical properties
- a) Physical stateclear, liquid
- b) Colorcolorless
- c) Odorodorless acidic
- d) Melting point/freezing pointNo data available
- e) Initial boiling point and boiling range125 °C
- f) Flammability (solid, gas)No data available
- g) Upper/lower flammability or explosive limitsNo data available
- h) Flash point110 °C
- i) Autoignition temperatureNo data available
- j) Decomposition temperatureNo data available
- k) pH1.8 at 20 °C
- l) ViscosityViscosity, kinematic: No data available
Viscosity, dynamic: No data available - m) Water solubilitySOLUBLE
- n) Partition coefficient n-octanol/waterNo data available
- o) Vapor pressure0.038Pa at 25℃
- p) Density1.200 g/cm3
- Relative density1.206 g/mL at 25 °C
- q) Relative vapor densityNo data available
- r) Particle characteristicsNo data available
- s) Explosive propertiesNot classified as explosive.
- t) Oxidizing propertiesnone
- SolubilityH2O: 10 mg/mL, clear, colorless
9.2 Other safety information
No data available
10.1 Chemical stability
The product is chemically stable under standard ambient conditions (room temperature) .
10.2 Possibility of hazardous reactions
No data available
10.3 Conditions to avoid
Strong heating.
10.4 Incompatible materials
Strong oxidizing agents
10.5 Hazardous decomposition products
In the event of fire: see section 5
11.1 Information on toxicological effects
Mixture Acute toxicityOral: No data available
Acute toxicity estimate Oral - 4,169 mg/kg (Calculation method)
Symptoms: If ingested, severe burns of the mouth and throat, as well as a danger of perforation of the esophagus and the stomach.
Symptoms: Possible symptoms:, mucosal irritations, Cough, Shortness of breath, Possible damages:, damage of respiratory tract
Dermal: No data available
Skin corrosion/irritation
Acute toxicity estimate Oral - 4,169 mg/kg (Calculation method)
Symptoms: If ingested, severe burns of the mouth and throat, as well as a danger of perforation of the esophagus and the stomach.
Symptoms: Possible symptoms:, mucosal irritations, Cough, Shortness of breath, Possible damages:, damage of respiratory tract
Dermal: No data available
Remarks: Mixture causes burns.
Serious eye damage/eye irritation
Remarks: Mixture causes serious eye damage.
Risk of blindness!
Respiratory or skin sensitization
Risk of blindness!
Classified based on available data. For more details, see section 2
Germ cell mutagenicity
Classified based on available data. For more details, see section 2
Carcinogenicity
Classified based on available data. For more details, see section 2
Reproductive toxicity
Classified based on available data. For more details, see section 2
Specific target organ toxicity - single exposure
Classified based on available data. For more details, see section 2
Specific target organ toxicity - repeated exposure
Classified based on available data. For more details, see section 2
Aspiration hazard
Classified based on available data. For more details, see section 2
11.2 Additional Information
To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated.
Other dangerous properties can not be excluded.
Handle in accordance with good industrial hygiene and safety practice.
Components lactic acid
Other dangerous properties can not be excluded.
Handle in accordance with good industrial hygiene and safety practice.
Acute toxicity
LD50 Oral - Rat - female - 3,543 mg/kg (OECD Test Guideline 401)
LC50 Inhalation - Rat - male and female - 4 h - > 7.94 mg/l - aerosol (OECD Test Guideline 403)
Remarks: (ECHA)
LD50 Dermal - Rabbit - male and female - > 2,000 mg/kg (US-EPA)
LC50 Inhalation - Rat - male and female - 4 h - > 7.94 mg/l - aerosol (OECD Test Guideline 403)
Remarks: (ECHA)
LD50 Dermal - Rabbit - male and female - > 2,000 mg/kg (US-EPA)
Skin corrosion/irritation
Remarks: Causes skin burns.
Classified according to Regulation (EU) 1272/2008, Annex VI (Table 3.1/3.2)
Classified according to Regulation (EU) 1272/2008, Annex VI (Table 3.1/3.2)
Serious eye damage/eye irritation
Eyes - Chicken eye
Result: Irreversible effects on the eye - 10 s (OECD Test Guideline 438)
Remarks: Classified according to Regulation (EU) 1272/2008, Annex VI (Table 3.1/3.2)
Result: Irreversible effects on the eye - 10 s (OECD Test Guideline 438)
Remarks: Classified according to Regulation (EU) 1272/2008, Annex VI (Table 3.1/3.2)
Respiratory or skin sensitization
Buehler Test - Guinea pig
Result: negative (US-EPA)
Result: negative (US-EPA)
Germ cell mutagenicity
Test Type: Ames test
Test system: Escherichia coli/Salmonella typhimurium
Result: negative
Test Type: Mutagenicity (mammal cell test): chromosome aberration.
Test system: Human lymphocytes
Result: negative
Test Type: In vitro mammalian cell gene mutation test
Test system: Mouse lymphoma test
Result: negative
Test system: Escherichia coli/Salmonella typhimurium
Result: negative
Test Type: Mutagenicity (mammal cell test): chromosome aberration.
Test system: Human lymphocytes
Result: negative
Test Type: In vitro mammalian cell gene mutation test
Test system: Mouse lymphoma test
Result: negative
Carcinogenicity
Classified based on available data. For more details, see section 2
Reproductive toxicity
Classified based on available data. For more details, see section 2
Specific target organ toxicity - single exposure
Corrosive to the respiratory tract.
Remarks: Classified according to Regulation (EU) 1272/2008, Annex VI (Table 3.1/3.2)
Remarks: Classified according to Regulation (EU) 1272/2008, Annex VI (Table 3.1/3.2)
Specific target organ toxicity - repeated exposure
Classified based on available data. For more details, see section 2
Aspiration hazard
Classified based on available data. For more details, see section 2
12.1 Toxicity
MixtureNo data available
12.2 Persistence and degradability
No data available
12.3 Bioaccumulative potential
No data available
12.4 Mobility in soil
No data available
12.5 Results of PBT and vPvB assessment
PBT/vPvB assessment not available as chemical safety assessment not required/not conducted
12.6 Endocrine disrupting properties
No data available
12.7 Other adverse effects
No data available
Components lactic acid
Toxicity to fish static test LC50 - Oncorhynchus mykiss (rainbow trout) - 130 mg/l - 96 h (US-EPA)
Toxicity to daphnia static test EC50 - Daphnia magna (Water flea) - 130 mg/l - 48 and other aquatic h invertebrates (OECD Test Guideline 202)
Toxicity to algae static test ErC50 - Pseudokirchneriella subcapitata (algae) - ca.
3,500 mg/l - 72 h (OECD Test Guideline 201)
Toxicity to bacteria static test EC50 - activated sludge - > 88.2 mg/l - 3 h (OECD Test Guideline 209)
Toxicity to daphnia static test EC50 - Daphnia magna (Water flea) - 130 mg/l - 48 and other aquatic h invertebrates (OECD Test Guideline 202)
Toxicity to algae static test ErC50 - Pseudokirchneriella subcapitata (algae) - ca.
3,500 mg/l - 72 h (OECD Test Guideline 201)
Toxicity to bacteria static test EC50 - activated sludge - > 88.2 mg/l - 3 h (OECD Test Guideline 209)
13.1 Waste treatment methods
Product
Offer surplus and non-recyclable solutions to a licensed disposal company.
Offer surplus and non-recyclable solutions to a licensed disposal company.
14.1 UN number
ADR/RID: 3265
IMDG: 3265
IATA-DGR: 3265
IMDG: 3265
IATA-DGR: 3265
14.2 UN proper shipping name
ADR/RID: CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (lactic acid)
IMDG: CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (lactic acid)
IATA-DGR: Corrosive liquid, acidic, organic, n.o.s. (lactic acid)
IMDG: CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S. (lactic acid)
IATA-DGR: Corrosive liquid, acidic, organic, n.o.s. (lactic acid)
14.3 Transport hazard class(es)
ADR/RID: 8
IMDG: 8
IATA-DGR: 8
IMDG: 8
IATA-DGR: 8
14.4 Packaging group
ADR/RID: III
IMDG: III
IATA-DGR: III
IMDG: III
IATA-DGR: III
14.5 Environmental hazards
ADR/RID: no
IMDG Marine pollutant: no
IATA-DGR: no
IMDG Marine pollutant: no
IATA-DGR: no
14.6 Special precautions for user
Based on chemical properties, choose appropriate tools and conditions of transport.
Transporting tools shall be equipped with appropriate and sufficient firefighting equipment and emergency leaking installations. If transporting by road, please go along the specified route.
Transporting tools shall be equipped with appropriate and sufficient firefighting equipment and emergency leaking installations. If transporting by road, please go along the specified route.
14.7 Incompatible materials
Strong oxidizing agents
15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture
National regulatory information
Other regulations
Please pay attention on the waste treatment should also comply with local regulations requirement.
Other regulations
Please pay attention on the waste treatment should also comply with local regulations requirement.
Abbreviations and acronyms
CAS: Chemical Abstracts Service
TWA: Time-Weighted Average
STEL: Short-Term Exposure Limit
LD50: Lethal Dose 50%
LC50: Lethal Concentration 50%
EC50: Effective Concentration 50%
PEL: Permissible Exposure Limit
TLV: Threshold Limit Value
IMDG: International Maritime Dangerous Goods Code
IATA: International Air Transport Association
ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
DOT: US Department of Transportation
NFPA: National Fire Protection Association
NIOSH: National Institute for Occupational Safety and Health
OSHA: Occupational Safety and Health Administration
TWA: Time-Weighted Average
STEL: Short-Term Exposure Limit
LD50: Lethal Dose 50%
LC50: Lethal Concentration 50%
EC50: Effective Concentration 50%
PEL: Permissible Exposure Limit
TLV: Threshold Limit Value
IMDG: International Maritime Dangerous Goods Code
IATA: International Air Transport Association
ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
DOT: US Department of Transportation
NFPA: National Fire Protection Association
NIOSH: National Institute for Occupational Safety and Health
OSHA: Occupational Safety and Health Administration
Disclaimer:
The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.