1.PRODUCT AND COMPANY IDENTIFICATION
Product identifier
- Product Name: Bemcentinib (R428)
- Catalog Number: S2841
- CAS Number: 1037624-75-1
- IUPAC Name: 1H-1,2,4-Triazole-3,5-diamine, 1-(6,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-c]pyridazin-3-yl)-N3-[(7S)-6,7,8,9-tetrahydro-7-(1-pyrrolidinyl)-5H-benzocyclohepten-2-yl]-
Relevant identified uses and uses advised against
- Identified uses: For research and development use only; laboratory chemicals; manufacture of substances.
- Uses advised against: Not for pharmaceutical, household, or other unapproved uses.
Details of the supplier
- Company : Selleck Chemicals
- TollFree : +1 877 796-6397
- Tel : +1 832 582-8158
- Fax : +1 832 582-8590
Emergency telephone number
- Emergency phone #: +1 832 582-8158
2. Hazard(s) identification
Classification of the substance or mixture:
GHS07: Acute toxicity - oral 4 H302 Harmful if swallowed.
Label elements:
The substance is classified and labeled according to the Globally Harmonized System (GHS).
Pictogram: 
Signal word: Warning
Hazard statements:
H302 Harmful if swallowed.
Precautionary statements:
- P264 Wash thoroughly after handling.
- P270 Do not eat, drink or smoke when using this product.
- P301+P312 If swallowed: Call a poison center/doctor if you feel unwell.
- P330 Rinse mouth.
- P501 Dispose of contents/container in accordance with local/regional/national/international regulations.
Classification system:
- NFPA ratings (scale 0 - 4): Health = 2, Fire = 0, Reactivity = 0.
- HMIS-ratings (scale 0 - 4): Health = 2, Fire = 0, Reactivity = 0.
Other hazards:
- Results of PBT and vPvB assessment: Not applicable.
- Hazards not otherwise classified: There are no adverse physical or health effects known that are not covered by the hazard classes of the Hazard Communications Standard.
3. Composition/information on ingredients
Chemical characterization: Substances
CAS No. Description: 1037624-75-1 1H-1,2,4-Triazole-3,5-diamine, 1-(6,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-c]pyridazin-3-yl)-N3-[(7S)-6,7,8,9-tetrahydro-7-(1-pyrrolidinyl)-5H-benzocyclohepten-2-yl]-
4. First-aid measures
Description of first aid measures:
- General information: Symptoms of poisoning may even occur after several hours; therefore medical observation for at least 48 hours after the accident is recommended.
- After inhalation: Supply fresh air; consult doctor in case of complaints.
- After skin contact: Generally the product does not irritate the skin.
- After eye contact: Rinse opened eye for several minutes under running water.
- After swallowing: Immediately call a doctor.
Most important symptoms and effects, both acute and delayed:
No further relevant information available.
Indication of any immediate medical attention and special treatment needed:
No further relevant information available.
5. Fire-fighting measures
Extinguishing media:
- Suitable extinguishing agents: Use fire fighting measures that suit the environment. A solid water stream may be inefficient.
Special hazards arising from the substance or mixture:
No further relevant information available.
Advice for firefighters:
- Protective equipment: No special measures required.
6. Accidental release measures
Personal precautions, protective equipment and emergency procedures:
Not required.
Environmental precautions:
Do not allow to enter sewers/surface or ground water.
Methods and material for containment and cleaning up:
Pick up mechanically.
Reference to other sections:
See Section 7 for information on safe handling.
See Section 8 for information on personal protection equipment.
See Section 13 for disposal information.
Protective Action Criteria for Chemicals:
- PAC-1: Substance is not listed.
- PAC-2: Substance is not listed.
- PAC-3: Substance is not listed.
7. Handling and storage
Precautions for safe handling:
No special precautions are necessary if used correctly. Avoid breathing dust/fume/gas/mist/vapours/spray. Avoid prolonged or repeated exposure. Keep away from sources of ignition. Take precautionary measures against static discharge.
Information about protection against explosions and fires:
No special measures required.
Conditions for safe storage, including any incompatibilities:
Keep container tightly closed. Store in accordance with information listed on the product insert.
Specific end use(s):
No further relevant information available.
8. Exposure controls/personal protection
Control parameters:
- Components with limit values that require monitoring at the workplace: Not required.
- Additional information: The lists that were valid during the creation were used as basis.
Exposure controls:
- Appropriate engineering controls: No further data; see section 7.
- Personal protective equipment:
- General protective and hygienic measures: Wash hands before breaks and at the end of work.
- Breathing equipment: Not required.
- Protection of hands: The glove material has to be impermeable and resistant to the product. Selection of the glove material should consider penetration times, rates of diffusion, and degradation.
- Material of gloves: Selection of suitable gloves depends on the material and quality marks, varying from manufacturer to manufacturer.
- Penetration time of glove material: The exact break through time has to be determined by the manufacturer and observed.
- Eye protection: Not required.
9. Physical and chemical properties
Information on basic physical and chemical properties:
- Physical state: powder
- Color: Not determined.
- Odor: Characteristic
- Structural Formula: C30H34N8
- Molecular Weight: 506.6 g/mol
- Odor threshold: Not determined.
- Melting point/Melting range: Undetermined.
- Boiling point/Boiling range: Undetermined.
- Flammability: Product is not flammable.
- Explosion limits: Lower: Not determined; Upper: Not determined.
- Flash point: Not applicable.
- Decomposition temperature: Not determined.
- pH-value: Not applicable.
- Viscosity (Kinematic/Dynamic): Not applicable.
- Solubility in / Miscibility with Water: Not determined.
- Solubility (DMSO): >5 mg/ml
- Partition coefficient (n-octanol/water): Not determined.
- Vapor pressure: Not applicable.
- Density: Not determined.
- Relative density: Not determined.
- Vapor density: Not applicable.
- Particle characteristics: Not determined.
- Appearance (Form): powder
- Ignition temperature: Not determined.
- Danger of explosion: Product does not present an explosion hazard.
- Evaporation rate: Not applicable.
10. Stability and reactivity
Reactivity:
No further relevant information available.
Chemical stability:
Stable under recommended storage conditions.
Thermal decomposition / conditions to be avoided:
No decomposition if used according to specifications.
Possibility of hazardous reactions:
No dangerous reactions known.
Conditions to avoid:
No further relevant information available.
Incompatible materials:
Strong oxidizing agents.
Hazardous decomposition products:
Carbon oxides, nitrogen oxides.
11. Toxicological information
Information on toxicological effects:
- Acute toxicity: Harmful if swallowed.
- Primary irritant effect:
- On the skin: No irritant effect.
- On the eye: No irritating effect.
- Sensitization: No sensitizing effects known.
- Interactive effects: No interactive effects between components are known.
Carcinogenic categories:
- IARC (International Agency for Research on Cancer): Substance is not listed.
- NTP (National Toxicology Program): Substance is not listed.
- OSHA-Ca (Occupational Safety & Health Administration): Substance is not listed.
12. Ecological information
Toxicity:
- Aquatic toxicity: No further relevant information available.
Persistence and degradability:
No further relevant information available.
Bioaccumulative potential:
No further relevant information available.
Mobility in soil:
No further relevant information available.
Results of PBT and vPvB assessment:
Not applicable.
Other adverse effects:
- General notes: Water hazard class 1 (Self-assessment): slightly hazardous for water. Do not allow undiluted product or large quantities of it to reach ground water, water course or sewage system.
13. Disposal considerations
Waste treatment methods:
- Recommendation: Must not be disposed of together with household garbage. Do not allow product to reach sewage system.
Uncleaned packagings:
- Recommendation: Disposal must be made according to official regulations.
14. Transport information
UN-Number:
- DOT, IMDG, IATA: not regulated
UN proper shipping name:
- DOT, IMDG, IATA: not regulated
Transport hazard class(es):
- DOT, ADN, IMDG, IATA Class: not regulated
Packing group:
- DOT, IMDG, IATA: not regulated
Environmental hazards:
Not applicable.
Special precautions for user:
Not applicable.
Transport in bulk according to Annex II of MARPOL73/78 and the IBC Code:
Not applicable.
UN "Model Regulation":
not regulated
15. Regulatory information
Safety, health and environmental regulations/legislation specific for the substance or mixture:
No further relevant information available.
Sara:
- Section 355 (extremely hazardous substances): Substance is not listed.
- Section 313 (Specific toxic chemical listings): Substance is not listed.
- TSCA (Toxic Substances Control Act): Substance is not listed.
- Hazardous Air Pollutants: Substance is not listed.
California Proposition 65:
- Chemicals known to cause cancer: Substance is not listed.
- Chemicals known to cause reproductive toxicity for females: Substance is not listed.
- Chemicals known to cause reproductive toxicity for males: Substance is not listed.
- Chemicals known to cause developmental toxicity: Substance is not listed.
Carcinogenic categories:
- EPA (Environmental Protection Agency): Substance is not listed.
- TLV (Threshold Limit Value): Substance is not listed.
- NIOSH-Ca (National Institute for Occupational Safety and Health): Substance is not listed.
Chemical safety assessment:
A Chemical Safety Assessment has not been carried out.
16. OTHER INFORMATION
Revision Date: 2026/07/14
Further Information: The information provided is believed to be correct but is not exhaustive and should be used only as a guideline based on current knowledge. It does not represent a guarantee of the properties of the product. Selleck Chemicals Corporation and its Affiliates shall not be held liable for any damage resulting from handling or contact with the product.