Note: Ingredients listed on restricted chemical lists
EC/CAS
91-64-5
Name of the chemical
2H-1-Benzopyran-2-one
Concentration
<100
General Information
Version
6
Revision date
2026-07-23
Product name
Coumarin
Product Synonyms
2H-1-Benzopyran-2-one
CAS No.
91-64-5
supplier name
Avocado Research Chemicals Ltd
Emergency telephone
001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887
Icons in SDS
Company Information
company name
Avocado Research Chemicals Ltd
e-mail address of the competent person responsible for the Safety Data Sheet
begel.sdsdesk@thermofisher.com
GHS Information
Signal word
Warning
Hazard Codes
Hazard statements (CLP)
H302, H317, H412
Hazard statements
Code
Statements
H302
Harmful if swallowed
Section 2
SECTION 2: Hazards identification
Physical State
Appearance/Odor
Powder Solid White sweet Emergency Overview Harmful if swallowed. May cause an allergic skin reaction. Harmful to aquatic life with long lasting effects. May form combustible dust concentrations in air Classification of the substance or mixture Acute Oral Toxicity Category 4 Skin Sensitization Category 1 Chronic aquatic toxicity Category 3 Label Elements
Signal word
Warning Hazard Statements H302 - Harmful if swallowed H317 - May cause an allergic skin reaction H412 - Harmful to aquatic life with long lasting effects
Prevention
P261 - Avoid breathing dust/fume/gas/mist/vapors/spray P264 - Wash face, hands and any exposed skin thoroughly after handling P270 - Do not eat, drink or smoke when using this product P272 - Contaminated work clothing should not be allowed out of the workplace P280 - Wear protective gloves P273 - Avoid release to the environment
Response
P301 + P312 - IF SWALLOWED: Call a POISON CENTER or doctor if you feel unwell P302 + P352 - IF ON SKIN: Wash with plenty of soap and water P330 - Rinse mouth P333 + P313 - If skin irritation or rash occurs: Get medical advice/attention P363 - Wash contaminated clothing before reuse
Storage
P403 + P233 - Store in a well-ventilated place. Keep container tightly closed
Disposal
P501 - Dispose of contents/ container to an approved waste disposal plant
Other physicochemical hazards
None identified. May form combustible dust concentrations in air.
Health hazards
Harmful if swallowed. May cause an allergic skin reaction.
Environmental hazards
Harmful to aquatic life with long lasting effects. Will likely be mobile in the environment due to its water solubility. The product is water soluble, and may spread in water systems.
2.3 Other hazards
May form explosible dust-air mixture if dispersed. Toxicity to Soil Dwelling Organisms. Toxic to terrestrial vertebrates. This product does not contain any known or suspected endocrine disruptors.
2.1 Classification of the substance or mixture
Classification of the substance or mixture Acute Oral Toxicity Category 4 Skin Sensitization Category 1 Chronic aquatic toxicity
