Chemical Safety Data Sheet MSDS / SDS
Avobenzone
Revision Date:2026-03-21Revision Number:1
Product identifier
- Product name: Avobenzone
- CBnumber: CB5337318
- CAS: 70356-09-1
- EINECS Number: 274-581-6
- Synonyms: Butylmethoxydibenzoylmethane ;AVB
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 wordWarning
P501 Dispose of contents/container to..…
P273 Avoid release to the environment.
Hazard statements
H413 May cause long lasting harmful effects to aquatic life
Substance
- Product name: Avobenzone
- Synonyms: Butylmethoxydibenzoylmethane ;AVB
- CAS: 70356-09-1
- EC number: 274-581-6
- MF: C20H22O3
- MW: 310.39
If inhaled
After inhalation: fresh air.
In case of skin contact
In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with water/ shower.
In case of eye contact
After eye contact: rinse out with plenty of water. Remove contact lenses.
If swallowed
After swallowing: make victim drink water (two glasses at most). Consult doctor if feeling unwell.
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
Protection of first-aiders
For personal protection see section 8.
Notes to physician
No data available
Suitable extinguishing media
Water Foam Carbon dioxide (CO2) Dry powder
Unsuitable extinguishing media
For this substance/mixture no limitations of extinguishing agents are given.
Specific hazards during fire fighting
Combustible. Development of hazardous combustion gases or vapours possible in the event of fire.
Hazardous combustion products
Carbon oxides
Specific extinguishing methods
Prevent fire extinguishing water from contaminating surface water or the ground water system.
Special protective equipment for fire-fighters
In the event of fire, wear self-contained breathing apparatus.
Personal precautions, protective equipment and emergency procedures
Advice for non-emergency personnel: Avoid inhalation of dusts. Evacuate the danger area, observe emergency procedures, consult an expert. Advice for emergency responders: For personal protection see section 8.
Environmental precautions
Do not let product enter drains.
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 dry. Dispose of properly. Clean up affected area. Avoid generation of dusts.
Handling
Avoidance of contactStrong oxidizing agents
Storage
Further information on storage conditionsTightly closed. Dry.
Storage class
11, Combustible Solids
Recommended storage temperature
-70°C Degree Freezer
Further information on storage stability
Store at Room Temperature.
Ingredients with workplace control parameters
Contains no substances with occupational exposure limit values.
Engineering measures
No data available
Personal protective equipment
Respiratory protectionrequired when dusts 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.
Recommended Filter type
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.
Filter type P1
The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer. These measures have to be properly documented.
Eye/face protection
The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer. These measures have to be properly documented.
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Safety glasses
Hand protection
Material
Safety glasses
Nitrile rubber
Break through time
480 min
Glove thickness
0.11 mm
Protective index
Full contact
Manufacturer
(KCL 740 / Aldrich Z677272, Size M)
Material
Nitrile rubber
Break through time
480 min
Glove thickness
0.11 mm
Protective index
Splash contact
Manufacturer
(KCL 740 / Aldrich Z677272, Size M)
Manufacturer
data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374
Remarks
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.
If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the CE 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.
Hygiene measures
The selected protective gloves have to satisfy the specifications of Regulation (EU) 2016/425 and the standard EN 374 derived from it.
If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the CE 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.
Change contaminated clothing. Wash hands after working with substance.
Information on basic physicochemical properties
- SolubilityChloroform (Slightly), DMSO (Slightly), Methanol (Slightly, Heated, Sonicated)
- Physical stateSolid
- Particle characteristics Particle sizeNo data available
- Molecular weight310.39 g/mol
- Oxidizing propertiesnone
- Explosive propertiesNot classified as explosive.
- Flow timeNo data available
- Viscosity, kinematicNo data available
- Viscosity, dynamicNo data available
- Decomposition temperatureNo data available
- Autoignition temperatureNo data available
- Partition coefficient: n-octanol/waterNo data available
- Water solubility27μg/L at 20℃
- Density1.079
- Relative density1.079
- Relative vapor densityNo data available
- Vapor pressure0Pa at 25℃
- Lower explosion limit / Lower flammability limitNo data available
- Upper explosion limit / Upper flammability limitNo data available
- Burning rateNo data available
- Flammability (liquids)No data available
- Flammability (solid, gas)No data available
- Evaporation rateNo data available
- Flash pointNo data available
- Boiling point/boiling range463.6±35.0 °C(Predicted)
- Melting point/ rangeNo data available
- pHNo data available
- Odor ThresholdNo data available
- OdorNo data available
- ColorWhite to Pale Yellow
- Appearancesolid
Reactivity
The following applies in general to flammable organic substances and mixtures: in correspondingly fine distribution, when whirled up a dust explosion potential may generally be assumed.
Chemical stability
The product is chemically stable under standard ambient conditions (room temperature) .
Possibility of hazardous reactions
No data available
Conditions to avoid
no information available
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
In the event of fire: see section 5
11.1 Information on toxicological effects
Acute toxicityLD50 Oral - Rat - > 16,000 mg/kg
Remarks: (ECHA)
Inhalation: No data available
Dermal: No data available
Skin corrosion/irritation
Remarks: (ECHA)
Inhalation: No data available
Dermal: No data available
Skin - In vitro study
Result: No skin irritation - 42 min (Human Skin Model Test)
Remarks: (own results)
Serious eye damage/eye irritation
Result: No skin irritation - 42 min (Human Skin Model Test)
Remarks: (own results)
Eyes - Rabbit
Result: No eye irritation
Remarks: (ECHA)
Respiratory or skin sensitization
Result: No eye irritation
Remarks: (ECHA)
Maximisation Test - Guinea pig
Result: negative
Remarks: (ECHA)
Human experience
Result: negative
Remarks: (Lit.)
Germ cell mutagenicity
Result: negative
Remarks: (ECHA)
Human experience
Result: negative
Remarks: (Lit.)
Test Type: Ames test
Metabolic activation: with and without metabolic activation
Method: OECD Test Guideline 471
Result: negative
Test Type: HGPRT (cell forward mutation assay)
Metabolic activation: with and without metabolic activation
Result: negative
Remarks: (ECHA)
Test Type: In vivo micronucleus test
Species: Mouse
Cell type: Red blood cells (erythrocytes)
Application Route: Oral
Remarks: (ECHA)
Carcinogenicity
Metabolic activation: with and without metabolic activation
Method: OECD Test Guideline 471
Result: negative
Test Type: HGPRT (cell forward mutation assay)
Metabolic activation: with and without metabolic activation
Result: negative
Remarks: (ECHA)
Test Type: In vivo micronucleus test
Species: Mouse
Cell type: Red blood cells (erythrocytes)
Application Route: Oral
Remarks: (ECHA)
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
Repeated dose toxicity - Rat - male and female - Oral - No observed adverse effect level - 450 mg/kg
Remarks: (ECHA)
Repeated dose toxicity - Rat - male and female - Dermal - No observed adverse ef- fect level - 360 mg/kg
Remarks: (ECHA)
To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated.
Remarks: (ECHA)
Repeated dose toxicity - Rat - male and female - Dermal - No observed adverse ef- fect level - 360 mg/kg
Remarks: (ECHA)
To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated.
Ecotoxicity
Components:
1-[4-(1,1-dimethylethyl)phenyl]-3-(4-methoxyphenyl)propane-1 ,3-dione:
Toxicity to fishLC50 (Cyprinus carpio (Carp)): > 100 mg/l Exposure time: 96 h Test Type: static test Method: OECD Test Guideline 203 GLP: yes Remarks: (above the solubility limit in the test medium)
Toxicity to daphnia and other aquatic invertebrates
EC50 (Daphnia magna (Water flea)): > 100 mg/l Exposure time: 72 h Test Type: static test Method: OECD Test Guideline 202 GLP: yes Remarks: (above the solubility limit in the test medium)
Toxicity to algae/aquatic plants
EC50 (Selenastrum capricornutum (green algae)): > 100 mg/l Test Type: static test Method: OECD Test Guideline 201 GLP: yes Remarks: (above the solubility limit in the test medium)
Toxicity to microorganisms
NOEC (activated sludge): >= 1,000 mg/l Exposure time: 3 h Test Type: static test Method: OECD Test Guideline 209 GLP: yes
Ecotoxicology Assessment
Chronic aquatic toxicityMay cause long lasting harmful effects to aquatic life.
Persistence and degradability
Components:
1-[4-(1,1-dimethylethyl)phenyl]-3-(4-methoxyphenyl)propane-1 ,3-dione:
BiodegradabilityInoculum: activated sludge Result: Not readily biodegradable. Biodegradation: 4 % Exposure time: 28 d Method: OECD Test Guideline 302C GLP: yes
Bioaccumulative potential
No data available
Mobility in soil
No data available
Other adverse effects
Components:
1-[4-(1,1-dimethylethyl)phenyl]-3-(4-methoxyphenyl)propane-1 ,3-dione:
Results of PBT and vPvB assessmentSubstance does not meet the criteria for PBT or vPvB according to Regulation (EC) No 1907/2006, Annex XIII.
Disposal methods
Waste from residuesOffer surplus and non-recyclable solutions to a licensed disposal company.
International Regulations
IATA-DGR
Not regulated as a dangerous good
UN/ID No. : Not applicable
Proper shipping name : Not applicable
Class : Not applicable
Subsidiary risk : Not applicable
Packing group : Not applicable
Labels : Not applicable
Packing instruction (cargo aircraft) : Not applicable
Packing instruction (passenger aircraft) : Not applicable
UN/ID No. : Not applicable
Proper shipping name : Not applicable
Class : Not applicable
Subsidiary risk : Not applicable
Packing group : Not applicable
Labels : Not applicable
Packing instruction (cargo aircraft) : Not applicable
Packing instruction (passenger aircraft) : Not applicable
IMDG-Code
Not regulated as a dangerous good
UN number : Not applicable
Proper shipping name : Not applicable
Class : Not applicable
Subsidiary risk : Not applicable
Packing group : Not applicable
Labels : Not applicable
EmS Code : Not applicable
Marine pollutant : no
UN number : Not applicable
Proper shipping name : Not applicable
Class : Not applicable
Subsidiary risk : Not applicable
Packing group : Not applicable
Labels : Not applicable
EmS Code : Not applicable
Marine pollutant : no
Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code
Not applicable for product as supplied.
National Regulations
JT/T 617
UN number : Not applicable
Proper shipping name : Not applicable
Class : Not applicable
Subsidiary risk : Not applicable
Packing group : Not applicable
Labels : Not applicable
Environmentally hazardous : no
Proper shipping name : Not applicable
Class : Not applicable
Subsidiary risk : Not applicable
Packing group : Not applicable
Labels : Not applicable
Environmentally hazardous : no
Special precautions for user
Remarks : Not classified as dangerous in the meaning of transport regulations.
Catalogue of Hazardous Chemicals : This product is not listed in the catalogue of hazardous chemicals and it does not meet the definition of hazardous chemicals and its principles of determination.
National regulatory information
Regulations on Safety Management of Hazardous Chemicals
Identification of Major Hazard Installations for Hazardous Chemicals (GB 18218)
Not listed
Hazardous Chemicals for Priority Management
Not listed under SAWS
Catalogue of Specially Controlled Hazardous
Not listed Chemicals
List of Explosive Precursors
Not listed
Regulations on Labour Protection in Workplaces where Toxic Substances are Used
Catalogue of Highly Toxic Chemicals
Not listed
Regulation of Environmental Management on the First Import of Chemicals and the Import and Export of Toxic Chemicals
China Severely Restricted Toxic Chemicals for Import and Export
Not listed
Regulation on the Administration of Precursor Chemicals
Catalogue and Classification of Precursor Chemicals
Not listed
Regulations on the Administration of Controlled Chemicals
List of Controlled Chemicals
Not listed
Regulations of Ozone Depleting Substances Management
List of Controlled Ozone Depleting Substances
Not listed
List of Controlled Ozone Depleting Substances Import and Export
Not listed
Environmental Protection Law
List of Priority Controlled Chemicals
Not listed
List of Key Controlled New Pollutants
Not listed
Full text of other abbreviations
AIIC - Australian Inventory of Industrial Chemicals
ANTT - National Agency forTransport by Land of Brazil
ASTM - American Society for the Testing of Materials
bw - Body weight
CMR - Carcinogen, Mutagen or Reproductive Toxicant
DIN -Standard of the German Institute for Standardisation
DSL - Domestic SubstancesList (Canada)
ECx - Concentration associated with x% response
ELx - Loading rate associated with x% response
EmS - Emergency Schedule
ENCS - Existing and NewChemical Substances (Japan)
ErCx - Concentration associated with x% growth rate response
ERG - Emergency Response Guide
GHS - Globally Harmonised System
GLP - Good Laboratory Practice
IARC - International Agency for Research on Can- cer
IATA - International Air Transport Association
IBC - International Code for theConstruction and Equipment of Ships carrying Dangerous Chemicals in Bulk
IC50 -Half maximal inhibitory concentration
ICAO - International Civil Aviation Organiza- tion
IECSC - Inventory of Existing Chemical Substances in China
IMDG - Interna- tional Maritime Dangerous Goods
IMO - International Maritime Organisation
ISHL -Industrial Safety and Health Law (Japan)
ISO - International Organisation forStandardisation
KECI - Korea Existing Chemicals Inventory
LC50 - Lethal Concen- tration to 50 % of a test population
LD50 - Lethal Dose to 50% of a test population (Median Lethal Dose)
MARPOL - International Convention for the Prevention of Pol- lution from Ships
MERCOSUR - The Agreement for the Facilitation of the Transport of Dangerous Goods
n.o.s. - Not Otherwise Specified
Nch - Chilean Norm
NO(A)EC - No Observed (Adverse) Effect Concentration
NO(A)EL - No Observed (Adverse) Ef- fect Level
NOELR - No Observable Effect Loading Rate
NOM - Official MexicanNorm
NTP - National Toxicology Program
NZIoC - New Zealand Inventory of Chem- icals
OECD - Organisation for Economic Co-operation and Development
OPPTS - Of- fice of Chemical Safety and Pollution Prevention
PBT - Persistent, Bioaccumulative and Toxic substance
PICCS - Philippines Inventory of Chemicals and Chemical Sub- stances
(Q)SAR - (Quantitative) Structure Activity Relationship
REACH - Regulation (EC) No 1907/2006 of the European Parliament and of the Council concerning theRegistration, Evaluation, Authorisation and Restriction of Chemicals
SADT - Self-Accelerating Decomposition Temperature
SDS - Safety Data Sheet
TCSI - TaiwanChemical Substance Inventory
TDG - Transportation of Dangerous Goods
TECI -Thailand Existing Chemicals Inventory
TSCA - Toxic Substances Control Act (UnitedStates)
UN - United Nations
UNRTDG - United Nations Recommendations on theTransport of Dangerous Goods
vPvB - Very Persistent and Very Bioaccumulative
WHMIS - Workplace Hazardous Materials Information System
ANTT - National Agency forTransport by Land of Brazil
ASTM - American Society for the Testing of Materials
bw - Body weight
CMR - Carcinogen, Mutagen or Reproductive Toxicant
DIN -Standard of the German Institute for Standardisation
DSL - Domestic SubstancesList (Canada)
ECx - Concentration associated with x% response
ELx - Loading rate associated with x% response
EmS - Emergency Schedule
ENCS - Existing and NewChemical Substances (Japan)
ErCx - Concentration associated with x% growth rate response
ERG - Emergency Response Guide
GHS - Globally Harmonised System
GLP - Good Laboratory Practice
IARC - International Agency for Research on Can- cer
IATA - International Air Transport Association
IBC - International Code for theConstruction and Equipment of Ships carrying Dangerous Chemicals in Bulk
IC50 -Half maximal inhibitory concentration
ICAO - International Civil Aviation Organiza- tion
IECSC - Inventory of Existing Chemical Substances in China
IMDG - Interna- tional Maritime Dangerous Goods
IMO - International Maritime Organisation
ISHL -Industrial Safety and Health Law (Japan)
ISO - International Organisation forStandardisation
KECI - Korea Existing Chemicals Inventory
LC50 - Lethal Concen- tration to 50 % of a test population
LD50 - Lethal Dose to 50% of a test population (Median Lethal Dose)
MARPOL - International Convention for the Prevention of Pol- lution from Ships
MERCOSUR - The Agreement for the Facilitation of the Transport of Dangerous Goods
n.o.s. - Not Otherwise Specified
Nch - Chilean Norm
NO(A)EC - No Observed (Adverse) Effect Concentration
NO(A)EL - No Observed (Adverse) Ef- fect Level
NOELR - No Observable Effect Loading Rate
NOM - Official MexicanNorm
NTP - National Toxicology Program
NZIoC - New Zealand Inventory of Chem- icals
OECD - Organisation for Economic Co-operation and Development
OPPTS - Of- fice of Chemical Safety and Pollution Prevention
PBT - Persistent, Bioaccumulative and Toxic substance
PICCS - Philippines Inventory of Chemicals and Chemical Sub- stances
(Q)SAR - (Quantitative) Structure Activity Relationship
REACH - Regulation (EC) No 1907/2006 of the European Parliament and of the Council concerning theRegistration, Evaluation, Authorisation and Restriction of Chemicals
SADT - Self-Accelerating Decomposition Temperature
SDS - Safety Data Sheet
TCSI - TaiwanChemical Substance Inventory
TDG - Transportation of Dangerous Goods
TECI -Thailand Existing Chemicals Inventory
TSCA - Toxic Substances Control Act (UnitedStates)
UN - United Nations
UNRTDG - United Nations Recommendations on theTransport of Dangerous Goods
vPvB - Very Persistent and Very Bioaccumulative
WHMIS - Workplace Hazardous Materials Information System
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.