NU7441 (KU-57788) SDS | MSDS

1.PRODUCT AND COMPANY IDENTIFICATION

Product identifier

Product Name: NU7441 (KU-57788)
Catalog Number: S2638
CAS Number: 503468-95-9
IUPAC Name: 4H-1-Benzopyran-4-one, 8-(4-dibenzothienyl)-2-(4-morpholinyl)-

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. Hazards identification

2.1 Classification of the substance or mixture
Not a hazardous substance or mixture according to GHS criteria.

2.2 GHS Label elements, including precautionary statements
The product does not require any hazard pictograms, signal words, hazard statements, or precautionary statements.

2.3 Hazards not otherwise classified (HNOC) or not covered by GHS
None.

3. Composition/information on ingredients

3.1 Substances
Name: 4H-1-Benzopyran-4-one, 8-(4-dibenzothienyl)-2-(4-morpholinyl)-
Molecular weight: 413.49 g/mol
CAS-No.: 503468-95-9
No components need to be disclosed according to the applicable regulations.

4. First aid measures

4.1 Description of first-aid measures

If inhaled: Move to fresh air.
In case of skin contact: Take off contaminated clothing immediately. Rinse skin with water or shower.
In case of eye contact: Rinse out with plenty of water. Remove contact lenses if present.
If swallowed: Have the victim drink a maximum of two glasses of water. Consult a 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 labeling (see section 2.2) and/or in section 11.

4.3 Indication of any immediate medical attention and special treatment needed
N/A.

5. Firefighting measures

5.1 Extinguishing media

Suitable extinguishing media: Water, Foam, Carbon dioxide (CO2), Dry powder.
Unsuitable extinguishing media: No limitations of extinguishing agents are given for this substance.

5.2 Special hazards arising from the substance or mixture
Carbon oxides, Nitrogen oxides (NOx), and Sulfur oxides. The material is combustible. Hazardous combustion gases or vapors may develop in the event of fire.

5.3 Advice for firefighters
Wear self-contained breathing apparatus for firefighting if necessary.

5.4 Further information
Use water spray jet to suppress gases, vapors, or mists. Prevent fire extinguishing water from contaminating surface water or the groundwater system.

6. Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures
Advice for non-emergency personnel: Avoid inhalation of dusts. Evacuate the danger area, observe emergency procedures, and consult an expert. 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 dry. Dispose of properly. Clean up affected area and avoid generation of powder.

6.4 Reference to other sections
For disposal see section 13.

7. Handling and storage

7.1 Precautions for safe handling
For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Storage conditions: Tightly closed and dry.
Storage temperature: 2 - 8 °C.
Storage class (TRGS 510): 11: Combustible Solids.

7.3 Specific end use(s)
Apart from the uses mentioned in section 1.2, no other specific uses are stipulated.

8. Exposure controls/personal protection

8.1 Control parameters
Contains no substances with occupational exposure limit values.

8.2 Exposure controls

Appropriate engineering controls: Change contaminated clothing. Wash hands after working with the substance.
Eye/face protection: Use safety glasses tested and approved under appropriate government standards such as NIOSH (US) or EN 166 (EU).
Skin protection: Handle with impervious nitrile rubber gloves (minimum layer thickness: 0.11 mm; break through time: 480 min).
Respiratory protection: Required when dusts are generated. Recommended filter type: P1.
Control of environmental exposure: Do not let product enter drains.

9. Physical and chemical properties

9.1 Information on basic physical and chemical properties

Appearance: Form: powder
Odor: N/A
Odor Threshold: N/A
pH: N/A
Melting point/freezing point: 220 - 221 °C (428 - 430 °F)
Initial boiling point and boiling range: N/A
Flash point: Not applicable
Evaporation rate: N/A
Flammability (solid, gas): N/A
Upper/lower flammability or explosive limits: N/A
Vapor pressure: N/A
Vapor density: N/A
Density/Relative density: N/A
Water solubility: N/A
Partition coefficient: n-octanol/water: N/A
Autoignition temperature: N/A
Decomposition temperature: N/A
Viscosity: N/A
Explosive properties: N/A
Oxidizing properties: none

9.2 Other safety information
N/A.

10. Stability and reactivity

10.1 Reactivity
Fine distribution of flammable organic substances may create a dust explosion potential when whirled up.

10.2 Chemical stability
The product is chemically stable under standard ambient conditions (room temperature).

10.3 Possibility of hazardous reactions
Violent reactions possible with strong oxidizing agents.

10.4 Conditions to avoid
No information available.

10.5 Incompatible materials
N/A.

10.6 Hazardous decomposition products
In the event of fire: see section 5.

11. Toxicological information

11.1 Information on toxicological effects

Acute toxicity: N/A for oral, inhalation, or dermal routes.
Skin corrosion/irritation: N/A.
Serious eye damage/eye irritation: N/A.
Respiratory or skin sensitization: N/A.
Germ cell mutagenicity: N/A.
Carcinogenicity: No component of this product present at levels greater than or equal to 0.1% is identified as a probable, possible, or confirmed human carcinogen by IARC, NTP, or OSHA.
Reproductive toxicity: N/A.
Specific target organ toxicity - single exposure: N/A.
Specific target organ toxicity - repeated exposure: N/A.
Aspiration hazard: N/A.

11.2 Additional Information
To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated.

12. Ecological information

12.1 Toxicity
N/A.

12.2 Persistence and degradability
N/A.

12.3 Bioaccumulative potential
N/A.

12.4 Mobility in soil
N/A.

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
N/A.

12.7 Other adverse effects
N/A.

13. Disposal considerations

13.1 Waste treatment methods
Waste material must be disposed of in accordance with national and local regulations. Leave chemicals in original containers. Do not mix with other waste. Handle uncleaned containers as the product itself.

14. Transport information

DOT (US)
Not dangerous goods.

IMDG
Not dangerous goods.

IATA
Not dangerous goods.

Further information
Not classified as dangerous in the meaning of transport regulations.

15. Regulatory information

CERCLA Reportable Quantity
This material does not contain any components with a CERCLA RQ.

SARA 304 Extremely Hazardous Substances Reportable Quantity
This material does not contain any components with a section 304 EHS RQ.

SARA 302 Extremely Hazardous Substances Threshold Planning Quantity
This material does not contain any components with a section 302 EHS TPQ.

SARA 313 : 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.

US State Regulations
Massachusetts Right To Know
No components are subject to the Massachusetts Right to Know Act.

Maine Chemicals of High Concern
Product does not contain any listed chemicals

Vermont Chemicals of High Concern
Product does not contain any listed chemicals

Washington Chemicals of High Concern
Product does not contain any listed chemicals

The ingredients of this product are reported in the following inventories:
TSCA : Product contains substance(s) not listed on TSCA
inventory.

TSCA list
No substances are subject to a Significant New Use Rule.
No substances are subject to TSCA 12(b) export notification requirements.

16. OTHER INFORMATION

Revision Date: 2026/07/31
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.