Chemical Safety Data Sheet MSDS / SDS
BIS(ETHYLCYCLOPENTADIENYL)COBALT(II)
Revision Date:2026-05-31Revision Number:1
Product identifier
- Product name: BIS(ETHYLCYCLOPENTADIENYL)COBALT(II)
- CBnumber: CB3504408
- CAS: 55940-05-1
- Synonyms: Bis(ethylcyclopentadienyl)cobalt(II)
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
P501 Dispose of contents/container to..…
P405 Store locked up.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P281 Use personal protective equipment as required.
P202 Do not handle until all safety precautions have been read and understood.
P201 Obtain special instructions before use.
P501 Dispose of contents/container to..…
P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P321 Specific treatment (see … on this label).
P311 Call a POISON CENTER or doctor/physician.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P271 Use only outdoors or in a well-ventilated area.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P501 Dispose of contents/container to..…
P342+P311 IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.
P304+P341 IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P285 In case of inadequate ventilation wear respiratory protection.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P501 Dispose of contents/container to..…
P405 Store locked up.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P281 Use personal protective equipment as required.
P202 Do not handle until all safety precautions have been read and understood.
P201 Obtain special instructions before use.
P501 Dispose of contents/container to..…
P273 Avoid release to the environment.
P501 Dispose of contents/container to..…
P363 Wash contaminated clothing before reuse.
P321 Specific treatment (see … on this label).
P333+P313 IF SKIN irritation or rash occurs: Get medical advice/attention.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P272 Contaminated work clothing should not be allowed out of the workplace.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P501 Dispose of contents/container to..…
P405 Store locked up.
P330 Rinse mouth.
P321 Specific treatment (see … on this label).
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P270 Do not eat, drink or smoke when using this product.
P264 Wash skin thouroughly after handling.
P501 Dispose of contents/container to..…
P405 Store locked up.
P363 Wash contaminated clothing before reuse.
P361 Remove/Take off immediately all contaminated clothing.
P322 Specific measures (see …on this label).
P310 Immediately call a POISON CENTER or doctor/physician.
P302+P350 IF ON SKIN: Gently wash with plenty of soap and water.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P270 Do not eat, drink or smoke when using this product.
P264 Wash skin thouroughly after handling.
P262 Do not get in eyes, on skin, or on clothing.
Hazard statements
H412 Harmful to aquatic life with long lasting effects
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
H226 Flammable liquid and vapour
H301 Toxic if swalloed
H331 Toxic if inhaled
H351 Suspected of causing cancer
H310 Fatal in contact with skin
H341 Suspected of causing genetic defects
H317 May cause an allergic skin reaction
Substance
- Product name: BIS(ETHYLCYCLOPENTADIENYL)COBALT(II)
- Synonyms: Bis(ethylcyclopentadienyl)cobalt(II)
- CAS: 55940-05-1
- MF: C14H18Co
- MW: 245.226
4.1 Description of first-aid measures
If inhaledAfter 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.
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
5.1 Extinguishing media
Unsuitable extinguishing mediaFor this substance/mixture no limitations of extinguishing agents are given.
5.2 Special hazards arising from the substance or mixture
Carbon oxides
Cobalt/cobalt oxides
Cobalt/cobalt oxides
5.3 Advice for firefighters
In the event of fire, wear self-contained breathing apparatus.
5.4 Further information
Prevent fire extinguishing water from contaminating surface water or the ground water system.
6.1 Personal precautions, protective equipment and emergency procedures
Advice for non-emergency personnel: Do not breathe vapors, aerosols. 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.
Handle and store under inert gas.
Storage class
Handle and store under inert gas.
Storage class (TRGS 510): 10: Combustible liquids
7.3 Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated
8.1 Control parameters
Ingredients with workplace control parameters8.2 Exposure controls
Personal protective equipmentEye/face protection
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Safety glasses
Skin protection
not required
Respiratory protection
Not required; except in case of aerosol formation.
Control of environmental exposure
Do not let product enter drains.
Information on basic physicochemical properties
- a) Physical stateliquid
- b) ColorNo data available
- c) OdorNo data available
- d) Melting point/freezing pointNo data available
- e) Initial boiling point and boiling rangeNo data available
- f) Flammability (solid, gas)No data available
- g) Upper/lower flammability or explosive limitsNo data available
- h) Flash point>230 °F
- i) Autoignition temperatureNo data available
- j) Decomposition temperatureNo data available
- k) pHNo data available
- l) ViscosityViscosity, kinematic: No data available
Viscosity, dynamic: No data available - m) Water solubilityNo data available
- n) Partition coefficient n-octanol/waterNo data available
- o) Vapor pressureNo data available
- p) Density1,516 g/mL at 25 °C
- Relative density1.516 g/mL at 25 °C(lit.)
- q) Relative vapor densityNo data available
- r) Particle characteristicsNo data available
- s) Explosive propertiesNo data available
- t) Oxidizing propertiesNo data available
9.2 Other safety information
No data available
10.1 Reactivity
No data available
10.2 Chemical stability
The product is chemically stable under standard ambient conditions (room temperature) .
10.3 Possibility of hazardous reactions
No data available
10.4 Conditions to avoid
no information available
10.5 Incompatible materials
Strong oxidizing agents
10.6 Hazardous decomposition products
In the event of fire: see section 5
11.1 Information on toxicological effects
Acute toxicityOral: No data available
Inhalation: No data available
Dermal: No data available
Skin corrosion/irritation
Inhalation: No data available
Dermal: No data available
Remarks: No data available
Serious eye damage/eye irritation
Remarks: No data available
Respiratory or skin sensitization
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
Classified based on available data. For more details, see section 2
12.1 Toxicity
No 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
14.1 UN number
ADR/RID: -
IMDG: -
IATA: -
IMDG: -
IATA: -
14.2 UN proper shipping name
ADR/RID: Not dangerous goods
IMDG: Not dangerous goods
IATA: Not dangerous goods
IMDG: Not dangerous goods
IATA: Not dangerous goods
14.3 Transport hazard class(es)
ADR/RID: -
IMDG: -
IATA: -
IMDG: -
IATA: -
14.4 Packaging group
ADR/RID: -
IMDG: -
IATA: -
IMDG: -
IATA: -
14.5 Environmental hazards
ADR/RID: no
IMDG Marine pollutant: no
IATA: no
IMDG Marine pollutant: no
IATA: no
14.6 Special precautions for user
No data available
Further information: Not classified as dangerous in the meaning of transport regulations.
Further information: Not classified as dangerous in the meaning of transport regulations.
15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture
This material safety data sheet complies with the requirements of Regulation (EC) No.
1907/2006.
International Chemical Weapons Convention : (CWC) Schedules of Toxic Chemicals and Precursors
Restrictions on the marketing and use of certain : dangerous substances and preparations
Regulation (EU) No 649/2012 of the European : Parliament and the Council concerning the export and import of dangerous chemicals
Candidate List of Substances of Very High : Concern for Authorisation
1907/2006.
International Chemical Weapons Convention : (CWC) Schedules of Toxic Chemicals and Precursors
Restrictions on the marketing and use of certain : dangerous substances and preparations
Regulation (EU) No 649/2012 of the European : Parliament and the Council concerning the export and import of dangerous chemicals
Candidate List of Substances of Very High : Concern for Authorisation
15.2 Chemical Safety Assessment
For this product a chemical safety assessment was not carried out
Full text of other abbreviations
ADN - European Agreement concerning the International Carriage of Dangerous Goods by Inland Waterways
ADR - Agreement concerning the International Carriage ofDangerous Goods by Road
AIIC - Australian Inventory of Industrial Chemicals
ASTM -American Society for the Testing of Materials
bw - Body weight
CMR - Carcinogen,Mutagen or Reproductive Toxicant
DIN - Standard of the German Institute forStandardisation
DSL - Domestic Substances List (Canada)
ECx - Concentration associated with x% response
ELx - Loading rate associated with x% response
EmS -Emergency Schedule
ENCS - Existing and New Chemical Substances (Japan)
ErCx -Concentration associated with x% growth rate response
GHS - Globally HarmonizedSystem
GLP - Good Laboratory Practice
IARC - International Agency for Research onCancer
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 Organization
IECSC - Inventory of Existing Chemical Substances in China
IMDG - InternationalMaritime Dangerous Goods
IMO - International Maritime Organization
ISHL - IndustrialSafety and Health Law (Japan)
ISO - International Organisation for Standardization
KECI - Korea Existing Chemicals Inventory
LC50 - Lethal Concentration 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 Pollution from Ships
n.o.s. -Not Otherwise Specified
NO(A)EC - No Observed (Adverse) Effect Concentration
NO(A)EL - No Observed (Adverse) Effect Level
NOELR - No Observable Effect LoadingRate
NZIoC - New Zealand Inventory of Chemicals
OECD - Organization for EconomicCo-operation and Development
OPPTS - Office of Chemical Safety and PollutionPrevention
PBT - Persistent, Bioaccumulative and Toxic substance
PICCS - PhilippinesInventory of Chemicals and Chemical Substances
(Q)SAR - (Quantitative) StructureActivity Relationship
REACH - Regulation (EC) No 1907/2006 of the EuropeanParliament and of the Council concerning the Registration, Evaluation, Authorisation andRestriction of Chemicals
RID - Regulations concerning the International Carriage ofDangerous Goods by Rail
SADT - Self-Accelerating Decomposition Temperature
SDS -Safety Data Sheet
TCSI - Taiwan Chemical Substance Inventory
TECI - ThailandExisting Chemicals Inventory
TSCA - Toxic Substances Control Act (United States)
UN - United Nations
UNRTDG - United Nations Recommendations on the Transport ofDangerous Goods
vPvB - Very Persistent and Very Bioaccumulative
ADR - Agreement concerning the International Carriage ofDangerous Goods by Road
AIIC - Australian Inventory of Industrial Chemicals
ASTM -American Society for the Testing of Materials
bw - Body weight
CMR - Carcinogen,Mutagen or Reproductive Toxicant
DIN - Standard of the German Institute forStandardisation
DSL - Domestic Substances List (Canada)
ECx - Concentration associated with x% response
ELx - Loading rate associated with x% response
EmS -Emergency Schedule
ENCS - Existing and New Chemical Substances (Japan)
ErCx -Concentration associated with x% growth rate response
GHS - Globally HarmonizedSystem
GLP - Good Laboratory Practice
IARC - International Agency for Research onCancer
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 Organization
IECSC - Inventory of Existing Chemical Substances in China
IMDG - InternationalMaritime Dangerous Goods
IMO - International Maritime Organization
ISHL - IndustrialSafety and Health Law (Japan)
ISO - International Organisation for Standardization
KECI - Korea Existing Chemicals Inventory
LC50 - Lethal Concentration 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 Pollution from Ships
n.o.s. -Not Otherwise Specified
NO(A)EC - No Observed (Adverse) Effect Concentration
NO(A)EL - No Observed (Adverse) Effect Level
NOELR - No Observable Effect LoadingRate
NZIoC - New Zealand Inventory of Chemicals
OECD - Organization for EconomicCo-operation and Development
OPPTS - Office of Chemical Safety and PollutionPrevention
PBT - Persistent, Bioaccumulative and Toxic substance
PICCS - PhilippinesInventory of Chemicals and Chemical Substances
(Q)SAR - (Quantitative) StructureActivity Relationship
REACH - Regulation (EC) No 1907/2006 of the EuropeanParliament and of the Council concerning the Registration, Evaluation, Authorisation andRestriction of Chemicals
RID - Regulations concerning the International Carriage ofDangerous Goods by Rail
SADT - Self-Accelerating Decomposition Temperature
SDS -Safety Data Sheet
TCSI - Taiwan Chemical Substance Inventory
TECI - ThailandExisting Chemicals Inventory
TSCA - Toxic Substances Control Act (United States)
UN - United Nations
UNRTDG - United Nations Recommendations on the Transport ofDangerous Goods
vPvB - Very Persistent and Very Bioaccumulative
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.