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Safety Data Sheet EN

N-Ethylmaleimide

CAS 128-53-0

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01

Identification

Product identifiers, regulatory numbers, and supplier information

Product Information

Product Name
N-Ethylmaleimide
Product Code
E3876
Chemical Name
N-Ethylmaleimide

Regulatory Identifiers

CAS Number
128-53-0 Check regulations →
REACH No.
A registration number is not available for this substance as the substance or its uses are exempted from registration or the annual tonnage does not require a registration.

Identified Uses

Laboratory chemicals, Manufacture of substances

Manufacturers & Suppliers

S

Sigma-Aldrich

S

Sigma-Aldrich Chemie GmbH

manufacturer

Eschenstrasse 5, D-82024 TAUFKIRCHEN

+49 (0)89 6513-1130

Emergency Contacts

CHEMTREC Deutschland

0800 181 7059

CHEMTREC weltweit

+49 (0)696 43508409

02

Hazard Identification

GHS classification, signal word, pictograms, and hazard statements

Classified danger

Hazard Classifications

Acute Tox. Cat. 2 H300
Acute Tox. Cat. 3 H311
Skin Corr. Cat. 1B H314
Eye Dam. Cat. 1 H318
Skin Sens. Cat. 1 H317

GHS Pictograms

GHS05 - Corrosive

GHS05

GHS06 - Acute toxicity

GHS06

Hazard Statements

H300 Fatal if swallowed.
H311 Toxic in contact with skin.
H314 Causes severe skin burns and eye damage.
H317 May cause an allergic skin reaction.

Precautionary Statements

P260 Do not breathe dust.
P272 Contaminated work clothing should not be allowed out of the workplace.
P280 Wear protective gloves/ protective clothing/ eye protection/ face protection.
P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.
P304 + P340 + P310 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

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03

Composition / Information on Ingredients

Chemical components, concentration ranges, and hazardous substance identification

Type substance
Chemical Name CAS Number Concentration Hazardous
N-ethylmaleimide EC: 204-892-4 128-53-0 100% Yes
04

First Aid Measures

Emergency procedures for chemical exposure incidents

Inhalation

After inhalation: fresh air. Call in physician.

Skin contact

Take off immediately all contaminated clothing. Rinse skin with water/ shower. Call a physician immediately.

Eye contact

Rinse out with plenty of water. Immediately call in ophthalmologist. Remove contact lenses.

Ingestion

Give water to drink (two glasses at most). Seek medical advice immediately. In exceptional cases only, if medical care is not available within one hour, induce vomiting (only in persons who are wide awake and fully conscious), administer activated charcoal (20 - 40 g in a 10% slurry) and consult a doctor as quickly as possible. Do not attempt to neutralise.

Immediate Medical Attention

Call in physician; Seek medical advice immediately.

05

Firefighting Measures

Extinguishing media, specific hazards, and firefighter protection

Suitable media

Water, Foam, Carbon dioxide (CO2), Dry powder

Unsuitable media

For this substance/mixture no limitations of extinguishing agents are given.

Specific hazards

Carbon oxides, Nitrogen oxides (NOx), Combustible. Vapours are heavier than air and may spread along floors. Forms explosive mixtures with air on intense heating.

Instructions

Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.

Firefighter Protection

Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.

06

Accidental Release Measures

Spill cleanup procedures, containment, and environmental protection

Emergency procedures

Avoid generation and inhalation of dusts in all circumstances. Avoid substance contact. Ensure adequate ventilation. Keep away from heat and sources of ignition. Evacuate the danger area, observe emergency procedures, consult an expert.

Environmental

Do not let product enter drains.

Cleanup methods

Clean up affected area.

Related Products

Similar products with comparable safety profiles

07

Handling and Storage

Safe handling precautions, storage conditions, and workplace requirements

Handling

Immediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance.

Storage

Tightly closed. Dry. Keep in a well-ventilated place. Keep locked up or in an area accessible only to qualified or authorised persons.

Hygiene

Immediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance.

Fire prevention

Keep away from open flames, hot surfaces and sources of ignition.

08

Exposure Controls / PPE

Occupational exposure limits, engineering controls, and protective equipment

Hands

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. The selected protective gloves have to satisfy the specifications of Regulation (EU) 2016/425 and the standard EN 374 derived from it. Full contact: Material: Nitrile rubber, Minimum layer thickness: 0,11 mm, Break through time: 480 min, Material tested: Dermatril® (KCL 740 / Aldrich Z677272, Size M). Splash contact: Material: Nitrile rubber, Minimum layer thickness: 0,11 mm, Break through time: 480 min, Material tested: Dermatril® (KCL 740 / Aldrich Z677272, Size M). data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374. 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.

Eyes

Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Tightly fitting safety goggles

Respiratory

required 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: Filter type P3. The entrepreneur 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.

Skin/Body

Flame retardant antistatic protective clothing.

Environmental

Do not let product enter drains.

09

Physical and Chemical Properties

Appearance, physical state, melting point, boiling point, and material characteristics

Physical State
crystalline
Physical State Data
solid
State Under Standard Conditions
---
Appearance
---
Colour
---
Colour Intensity
---
Form
---
Odor
---
Odor Threshold
---
Ph
---
Melting Point
Melting point/ range: 43 - 46 °C
Boiling Point
210 °C
Flash Point
72,9 °C - closed cup - closed cup
Freezing Point
---
Softening Point
---
Solidification Point
---
Cloud Point
---
Crystallisation Point
---
Relative Evaporation Rate
---
Evaporation Rate
---
Vapor Pressure
---
Vapor Density
---
Relative Density
---
Bulk Density
---
Density
---
Flammability
---
Upper Explosive Limit
---
Lower Explosive Limit
---
Explosive Limits
---
Auto Ignition Temperature
---
Decomposition Temperature
---
Solubility
---
Partition Coefficient
---
Solubility In Water
at 20 °C slightly soluble
Solubility In Fat
---
Molecular Weight
---
Voc Content
---
Metal Corrosion
---
Dynamic Viscosity
---
Kinematic Viscosity
---
Properties Status
---
10

Stability and Reactivity

Chemical stability, hazardous reactions, and incompatible materials

Stability

The product is chemically stable under standard ambient conditions (room temperature). May discolor on exposure to light.

Reactivity

Forms explosive mixtures with air on intense heating. A range from approx. 15 Kelvin below the flash point is to be rated as critical. 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.

Hazardous reactions

No data available

Avoid

Strong heating.

Incompatible

No data available

Decomposition

In the event of fire: see section 5

12

Ecological Information

Environmental toxicity, biodegradation, and bioaccumulation data

The data for this section has not been processed yet.

13

Disposal Considerations

Waste treatment methods, disposal recommendations, and waste codes

The data for this section has not been processed yet.

14

Transport Information

UN numbers, shipping names, transport classes, and regulatory requirements

UN Number
2928
Shipping Name
TOXIC SOLID, CORROSIVE, ORGANIC, N.O.S. (N-ethylmaleimide)
Transport Class
6.1 (8)
Packing Group
II
15

Regulatory Information

Chemical regulations, safety assessments, and compliance status

The data for this section has not been processed yet.

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Frequently Asked Questions

Common questions about safety, handling, and properties

What is the hazard signal word for N-Ethylmaleimide?

The signal word is danger.

What is the physical form of N-Ethylmaleimide?

N-Ethylmaleimide is a crystalline .

What is N-Ethylmaleimide used for?

Laboratory chemicals, Manufacture of substances

What are the hazard statements for N-Ethylmaleimide?

This substance has 4 hazard statements:

  • H300: Fatal if swallowed.
  • H311: Toxic in contact with skin.
  • H314: Causes severe skin burns and eye damage.
  • H317: May cause an allergic skin reaction.

What is the melting point of N-Ethylmaleimide?

The melting point is Melting point/ range: 43 - 46 °C and the boiling point is 210 °C.