DESMODUR E 21

Covestro LLC

Revision date : 2025-12-18

SDS Library

Move your SDS library online today

Check Icon
Setup – Easy setup with our database of 16 million+ SDSs
Check Icon
Up-to-date – Your SDS get updated to latest versions.
Check Icon
Employee access – Tablets, Smartphones, or link from Corporate Intranet
Check Icon
Safety – One-click access to first aid information.
Check Icon
Labels – Generate Secondary Container Labels with just one click.
GHS08 GHS07
Health risk rating 5
Safety risk rating 1
Environmental risk rating 1

Note: Ingredients listed on restricted chemical lists

EC/CAS

101-68-8

Name of the chemical

4,4’-Methylenediphenyl diisocyanate

Concentration

10-30%

EC/CAS

9016-87-9

Name of the chemical

4,4'-Methylendiphenyldiisocyanat tech. (Polymeres) MDI, pMDI (in Form atembarer Aerosole, A-Fraktion)

Concentration

10-30%

EC/CAS

5873-54-1

Name of the chemical

2,4’-Methylenediphenyl diisocyanate

Concentration

3-7%

EC/CAS

2536-05-2

Name of the chemical

2,2’-Methylenediphenyl diisocyanate

Concentration

0.1-1%

General Information

Revision date

2025-12-18

Product name

DESMODUR E 21

Chemical name

Aromatic Isocyanate

1.2.1 Relevant identified uses

Raw material for coatings, inks, adhesives, sealants, or elastomers in industrial applications

Icons in SDS

GHS07 GHS08 M004 M009 M010 M011 M013 M017

Company Information

company name

Covestro LLC

GHS Information

Signal word

Danger

Hazard Codes

Hazard statements (CLP)

H315, H317, H332, H334, H335, H372

Hazard statements

Code

Statements

H315

Causes skin irritation

Section 2

SECTION 2: Hazards identification

GHS Classification Acute toxicity (Inhalation) Category 4 Skin irritation Category 2 Eye irritation Category 2B Respiratory sensitisation Category 1 Skin sensitisation Category 1 Specific target organ toxicity - Category 3 (Respiratory system) single exposure Specific target organ toxicity - Category 1 (Respiratory tract) repeated exposure

Signal word

Danger

Hazard statements

Causes skin and eye irritation. May cause an allergic skin reaction. Harmful if inhaled. May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause respiratory irritation. Causes damage to organs (Respiratory tract) through prolonged or repeated exposure if inhaled.

Prevention

Wear protective gloves. Wash skin and face thoroughly after handling. Contaminated work clothing must not be allowed out of the workplace. Do not breathe dust, mist, gas, vapors or spray. In case of inadequate ventilation wear respiratory protection. The type of respiratory protection selected must comply with the requirements set forth in OSHA's Respiratory Protection Standard (29 CFR 1910.134) or regional standards. For additional details, see section 8 of the SDS. Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area.

Response

IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove person to fresh air and keep comfortable for breathing. Get medical advice/ attention if you feel unwell. If skin irritation or rash occurs: Get medical attention. If eye irritation persists: Get medical attention. If experiencing respiratory symptoms: Call a doctor or emergency medical facility (i.e. 911). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Take off contaminated clothing and wash it before reuse.

Storage

Store in a well-ventilated place. Keep container tightly closed. Store locked up.

Disposal

Dispose of contents and container in accordance with existing federal, state, and local environmental control laws.

2.1 Classification of the substance or mixture

Acute toxicity (Inhalation): Category 4 Skin irritation: Category 2 Eye irritation: Category 2B Respiratory sensitisation: Category 1 Skin sensitisation: Category 1 Specific target organ toxicity - Category 3 (Respiratory system) single exposure: Specific target organ toxicity - Category 1 (Respiratory tract) repeated exposure

SDS Library

Move your SDS library online today

Check Icon
Setup – Easy setup with our database of 16 million+ SDSs
Check Icon
Up-to-date – Your SDS get updated to latest versions.
Check Icon
Employee access – Tablets, Smartphones, or link from Corporate Intranet
Check Icon
Safety – One-click access to first aid information.
Check Icon
Labels – Generate Secondary Container Labels with just one click.