Chemical Safety Data Sheet MSDS / SDS
Mertansine
Revision Date:2026-04-26Revision Number:1
Product identifier
- Product name: Mertansine
- CBnumber: CB72684641
- CAS: 139504-50-0
- Synonyms: mertansine,N2'-DEACETYL-N2'-(3-MERCAPTO-1-OXOPROPYL)-MAYTANSINE
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
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Symbol(GHS)
- Signal wordDanger
P262 Do not get in eyes, on skin, or on clothing.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P302+P350 IF ON SKIN: Gently wash with plenty of soap and water.
P310 Immediately call a POISON CENTER or doctor/physician.
P322 Specific measures (see …on this label).
P361 Remove/Take off immediately all contaminated clothing.
P363 Wash contaminated clothing before reuse.
P405 Store locked up.
P501 Dispose of contents/container to..…
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P307+P311 IF exposed: call a POISON CENTER or doctor/physician.
P321 Specific treatment (see … on this label).
P405 Store locked up.
P501 Dispose of contents/container to..…
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P321 Specific treatment (see … on this label).
P330 Rinse mouth.
P405 Store locked up.
P501 Dispose of contents/container to..…
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P363 Wash contaminated clothing before reuse.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P310 Immediately call a POISON CENTER or doctor/physician.
P321 Specific treatment (see … on this label).
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.
P501 Dispose of contents/container to..…
Hazard statements
H310 Fatal in contact with skin
H314 Causes severe skin burns and eye damage
H360 May damage fertility or the unborn child
H370 Causes damage to organs
H340 May cause genetic defects
H300 Fatal if swallowed
Substance
- Product name: Mertansine
- Synonyms: mertansine,N2'-DEACETYL-N2'-(3-MERCAPTO-1-OXOPROPYL)-MAYTANSINE
- CAS: 139504-50-0
- MF: C35H48ClN3O10S
- MW: 738.29
4.1 Description of first aid measures
Eye contactRemove any contact lenses, locate eye-wash station, and flush eyes immediately with large amounts of water. Separate eyelids with fingers to ensure adequate flushing. Promptly call a physician.
Skin contact
Rinse skin thoroughly with large amounts of water. Remove contaminated clothing and shoes and call a physician.
Inhalation
Immediately relocate self or casualty to fresh air. If breathing is difficult, give cardiopulmonary resuscitation (CPR). Avoid mouth- to-mouth resuscitation.
Ingestion
Wash out mouth with water; Do NOT induce vomiting; call a physician.
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).
4.3 Indication of any immediate medical attention and special treatment needed
Treat symptomatically.
5.1 Extinguishing media
Suitable extinguishing mediaUse water spray, dry chemical, foam, and carbon dioxide fire extinguisher.
5.2 Special hazards arising from the substance or mixture
During combustion, may emit irritant fumes.
5.3 Advice for firefighters
Wear self-contained breathing apparatus and protective clothing.
NFPA 704
4
0
0
| HEALTH | 4 | Very short exposure could cause death or major residual injury (e.g. hydrogen cyanide, phosgene, methyl isocyanate, hydrofluoric 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 | 0 | Normally stable, even under fire exposure conditions, and is not reactive with water (e.g. helium,N2) | |
| SPEC. HAZ. |
6.1 Personal precautions, protective equipment and emergency procedures
Use full personal protective equipment. Avoid breathing vapors, mist, dust or gas. Ensure adequate ventilation. Evacuate personnel to safe areas.
Refer to protective measures listed in sections 8.
Refer to protective measures listed in sections 8.
6.2 Environmental precautions
Try to prevent further leakage or spillage. Keep the product away from drains or water courses.
6.3 Methods and materials for containment and cleaning up
Absorb solutions with finely-powdered liquid-binding material (diatomite, universal binders); Decontaminate surfaces and equipment by scrubbing with alcohol; Dispose of contaminated material according to Section 13.
6.4 Reference to other sections
For disposal see section 13.
7.1 Precautions for safe handling
Avoid inhalation, contact with eyes and skin. Avoid dust and aerosol formation. Use only in areas with appropriate exhaust ventilation.
7.2 Conditions for safe storage, including any incompatibilities
Keep container tightly sealed in cool, well-ventilated area. Keep away from direct sunlight and sources of ignition.
Recommended storage temperature
Powder -20°C 3 years 4°C 2 years * The compound is unstable in solutions, freshly prepared is recommended.
Shipping at room temperature if less than 2 weeks.
Shipping at room temperature if less than 2 weeks.
7.3 Specific end use(s)
No data available.
8.1 Control parameters
Components with workplace control parametersThis product contains no substances with occupational exposure limit values.
8.2 Exposure controls
Engineering controlsEnsure adequate ventilation. Provide accessible safety shower and eye wash station.
Personal protective equipment
Eye protection
Safety goggles with side-shields.
Hand protection
Protective gloves.
Skin and body protection
Impervious clothing.
Respiratory protection
Suitable respirator.
Environmental exposure controls
Keep the product away from drains, water courses or the soil. Clean spillages in a safe way as soon as possible.
Information on basic physicochemical properties
- AppearanceSolid
- OdorNo data available
- Odor thresholdNo data available
- pHNo data available
- Melting/freezing point190-192°C
- Boiling point/range937.1±65.0 °C(Predicted)
- Flash pointNo data available
- Evaporation rateNo data available
- Flammability (solid, gas)No data available
- Upper/lower flammability or explosive limitsNo data available
- Vapor pressureNo data available
- Vapor densityNo data available
- Relative density1.33g/cm3
- Water SolubilityNo data available
- Partition coefficientNo data available
- Auto-ignition temperatureNo data available
- Decomposition temperatureNo data available
- ViscosityNo data available
- Explosive propertiesNo data available
- Oxidizing propertiesNo data available
- SolubilityDMSO:60.0(Max Conc. mg/mL);81.26(Max Conc. mM)
- Physical stateA crystalline solid
- ColourWhite to light yellow
9.2 Other safety information
No data available.
10.1 Reactivity
No data available.
10.2 Chemical stability
Stable under recommended storage conditions.
10.3 Possibility of hazardous reactions
No data available.
10.4 Conditions to avoid
No data available.
10.5 Incompatible materials
Strong acids/alkalis, strong oxidising/reducing agents.
10.6 Hazardous decomposition products
Under fire conditions, may decompose and emit toxic fumes.
Other decomposition products - no data available.
Other decomposition products - no data available.
11.1 Information on toxicological effects
Acute toxicityClassified based on available data. For more details, see section 2
Skin corrosion/irritation
Classified based on available data. For more details, see section 2
Serious eye damage/irritation
Classified based on available data. For more details, see section 2
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
IARC
No component of this product present at a level equal to or greater than 0.1% is identified as probable, possible or confirmed human carcinogen by IARC.
ACGIH
No component of this product present at a level equal to or greater than 0.1% is identified as a potential or confirmed carcinogen by ACGIH.
NTP
No component of this product present at a level equal to or greater than 0.1% is identified as a anticipated or confirmed carcinogen by NTP.
OSHA
No component of this product present at a level equal to or greater than 0.1% is identified as a potential or confirmed carcinogen by OSHA.
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
Additional information
This information is based on our current knowledge. However the chemical, physical, and toxicological properties have not been completely investigated.
12.1 Toxicity
No data available.
12.2 Persistence and degradability
No data available.
12.3 Bioaccumlative potential
No data available.
12.4 Mobility in soil
No data available.
12.5 Results of PBT and vPvB assessment
PBT/vPvB assessment unavailable as chemical safety assessment not required or not conducted.
12.6 Other adverse effects
No data available.
13.1 Waste treatment methods
ProductDispose substance in accordance with prevailing country, federal, state and local regulations.
Contaminated packaging
Conduct recycling or disposal in accordance with prevailing country, federal, state and local regulations.
DOT (US)
Proper shipping nameNot dangerous goods
UN number
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Class
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Packing group
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IMDG
Proper shipping nameNot dangerous goods
UN number
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Class
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Packing group
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IATA
Proper shipping nameNot dangerous goods
UN number
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Class
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Packing group
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SARA 302 Components
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302.
SARA 313 Components
This material does not contain any chemical components with known CAS numbers that exceed the threshold (De Minimis) reporting levels established by SARA Title III, Section 313.
SARA 311/312 Hazards
No SARA Hazards.
Massachusetts Right To Know Components
No components are subject to the Massachusetts Right to Know Act.
Pennsylvania Right To Know Components
No components are subject to the Pennsylvania Right to Know Act.
New Jersey Right To Know Components
No components are subject to the New Jersey Right to Know Act.
California Prop. 65 Components
This product does not contain any chemicals known to State of California to cause cancer, birth defects, or anyother reproductive harm.
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.