3-Chloro-2-methylpropene

Avocado Research Chemicals Ltd

Revision date : 2026-07-25

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GHS02 GHS07 GHS05 GHS09
Health risk rating 4
Safety risk rating 3
Environmental risk rating 4

Note: Ingredients listed on restricted chemical lists

EC/CAS

563-47-3

Name of the chemical

3-Chlor-2-methylpropen

Concentration

>=90

General Information

Version

5

Revision date

2026-07-25

Product name

3-Chloro-2-methylpropene

Product Synonyms

Methallyl chloride

CAS No.

563-47-3

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

GHS02 GHS05 GHS07 GHS09 M004 M009 M010 M011 M013 M017

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)

H225, H302+H332, H313, H314, H317, H411

Hazard statements

Code

Statements

H225

Highly Flammable liquid and vapour

Section 2

SECTION 2: Hazards identification

Physical State

Appearance/Odor

Liquid Colorless pungent Emergency Overview Highly flammable liquid and vapor. Causes severe skin burns and eye damage. May cause an allergic skin reaction. Toxic to aquatic life with long lasting effects. Harmful if swallowed. May be harmful in contact with skin. Harmful if inhaled. Lachrymator substance which increases the flow of tears) Classification of the substance or mixture Flammable liquids Category 2 Acute Oral Toxicity Category 4 Acute Dermal Toxicity Category 5 Acute Inhalation Toxicity - Vapors Category 4 Skin Corrosion/Irritation Category 1 B Serious Eye Damage/Eye Irritation Category 1 Skin Sensitization Category 1 Acute aquatic toxicity Category 2 Chronic aquatic toxicity Category 2 Label Elements

Signal word

Danger Hazard Statements H225 - Highly flammable liquid and vapor H314 - Causes severe skin burns and eye damage H317 - May cause an allergic skin reaction H411 - Toxic to aquatic life with long lasting effects H313 - May be harmful in contact with skin H302 + H332 - Harmful if swallowed or if inhaled

Prevention

P243 - Take action to prevent static discharges P201 - Obtain special instructions before use P202 - Do not handle until all safety precautions have been read and understood P210 - Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking P240 - Ground and bond container and receiving equipment P241 - Use explosion-proof electrical/ ventilating/ lighting equipment P242 - Use non-sparking tools 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 P260 - Do not breathe 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

Response

P303 + P361 + P353 - IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower 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 P310 - Immediately call a POISON CENTER or doctor P330 - Rinse mouth P331 - Do NOT induce vomiting P372 - Explosion risk in case of fire P374 - Fight fire with normal precautions from a reasonable distance P380 - Evacuate area P362 + P364 - Take off contaminated clothing and wash it 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

Vapors may cause flash fire or explosion. Highly flammable.

Health hazards

Corrosive. Causes skin and eye burns. May cause an allergic skin reaction. Causes serious eye damage. Harmful if swallowed. May be harmful in contact with skin. Harmful if inhaled.

Environmental hazards

Toxic to aquatic life with long lasting effects. Will likely be mobile in the environment due to its volatility. The product contains volatile organic compounds (VOC) which will evaporate easily from all surfaces.

2.3 Other hazards

Lachrymator (substance which increases the flow of tears) 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 Flammable liquids. Category 2 Acute Oral Toxicity Category 4 Acute Dermal Toxicity Category 5 Acute Inhalation Toxicity - Vapors Category 4 Skin Corrosion/Irritation Category 1 B Serious Eye Damage/Eye Irritation Category 1 Skin Sensitization Category 1 Acute aquatic toxicity Category 2 Chronic aquatic toxicity

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