Note: Ingredients listed on restricted chemical lists
EC/CAS
103-33-3
Name of the chemical
Azobenzol
Concentration
<=100
General Information
Version
6
Revision date
2025-12-22
Product name
Azobenzene
Product Synonyms
1,2-Diphenyldiazene
CAS No.
103-33-3
Icons in SDS
Company Information
company name
Thermo Fisher Scientific Chemicals, Inc
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H341, H350, H373
Hazard statements
Code
Statements
H341
Suspected of causing genetic defects
Section 2
SECTION 2: Hazards identification
(29 CFR 1910.1200) Classification
Signal word
Danger
Hazard statements
Suspected of causing genetic defects May cause cancer May cause damage to organs through prolonged or repeated exposure Harmful if swallowed or if inhaled
Prevention
Obtain special instructions before use Do not handle until all safety precautions have been read and understood Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product Use only outdoors or in a well-ventilated area Do not breathe dust/fume/gas/mist/vapors/spray Wear protective gloves/protective clothing/eye protection/face protection
Response
IF exposed or concerned: Get medical attention/advice Inhalation IF INHALED: Remove person to fresh air and keep comfortable for breathing Ingestion IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell Rinse mouth
Storage
Store locked up
Disposal
Dispose of contents/container to an approved waste disposal plant
2.3 Other hazards
Very toxic to aquatic life with long lasting effects
2.1 Classification of the substance or mixture
This chemical is considered hazardous according to [US] OSHA (29 CFR 1910.1200, 2024) Acute oral toxicity Category 4 Acute Inhalation Toxicity - Dusts and Mists Category 4 Germ Cell Mutagenicity Category 2 Carcinogenicity Category 1B Specific target organ toxicity - (repeated exposure) Category 2 Target Organs - Liver, spleen.
