Note: Ingredients listed on restricted chemical lists
EC/CAS
109-77-3
Name of the chemical
Malononitrile
Concentration
<=100
General Information
Version
6
Revision date
2026-07-25
Product name
Malononitrile
Product Synonyms
MDN; Dicyanomethane
CAS No.
109-77-3
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
Danger
Hazard Codes
Hazard statements (CLP)
H300, H311+H331, H317, H319, H410
Hazard statements
Code
Statements
H300
Fatal if swallowed
Section 2
SECTION 2: Hazards identification
Physical State
Appearance/Odor
Solid Yellow Odorless Emergency Overview Toxic in contact with skin. Toxic if inhaled. Harmful to aquatic life. Very toxic to aquatic life with long lasting effects. Fatal if swallowed. May cause an allergic skin reaction. Causes serious eye irritation. Classification of the substance or mixture Acute Oral Toxicity Category 2 Acute Dermal Toxicity Category 3 Acute Inhalation Toxicity - Dusts and Mists Category 3 Serious Eye Damage/Eye Irritation Category 2 Skin Sensitization Category 1 Acute aquatic toxicity Category 1 Category 3 Chronic aquatic toxicity Category 1 Label Elements
Signal word
Danger Hazard Statements H410 - Very toxic to aquatic life with long lasting effects H300 - Fatal if swallowed H317 - May cause an allergic skin reaction H319 - Causes serious eye irritation H311 + H331 - Toxic in contact with skin or if inhaled
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 P271 - Use only outdoors or in a well-ventilated area P272 - Contaminated work clothing should not be allowed out of the workplace P280 - Wear protective gloves/protective clothing/eye protection/face protection
Response
P301 + P310 - IF SWALLOWED: Immediately call a POISON CENTER or doctor P302 + P352 - IF ON SKIN: Wash with plenty of soap and water P304 + P340 - IF INHALED: Remove person to fresh air and keep comfortable for breathing P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing P311 - Call a POISON CENTER or doctor P330 - Rinse mouth P361 + P364 - Take off immediately all contaminated clothing and wash it before reuse P363 - Wash contaminated clothing before reuse
Storage
P403 + P233 - Store in a well-ventilated place. Keep container tightly closed P405 - Store locked up
Disposal
P501 - Dispose of contents/ container to an approved waste disposal plant
Other physicochemical hazards
None identified.
Health hazards
Toxic if swallowed. Toxic in contact with skin. Toxic if inhaled. Harmful if inhaled. Very toxic if swallowed. May cause an allergic skin reaction. Causes serious eye irritation.
Environmental hazards
Harmful to aquatic life. Very toxic 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
Toxic to terrestrial vertebrates. This product does not contain any known or suspected endocrine disruptors.
2.1 Classification of the substance or mixture
Acute Oral Toxicity Category 2 Acute Dermal Toxicity Category 3 Acute Inhalation Toxicity - Dusts and Mists Category 3 Serious Eye Damage/Eye Irritation Category 2 Skin Sensitization Category 1 Acute aquatic toxicity Category 1 Category 3 Chronic aquatic toxicity