C4H7Cl
90.55 g/mol
AgrochemicalDanger
3-Chloro-2-methylpropene
CAS563-47-3EC209-251-2
Category
Agrochemical
Compound Class
Halocarbon
Primary Use
chemical intermediate for insecticides
3-Chloro-2-methylpropene is a chemical intermediate used primarily in the production of insecticides. It is also employed in the synthesis of plastics, pharmaceuticals, and other chemicals, and has been identified as a potential carcinogen by an independent scientific committee.
chemical intermediate for insecticidesintermediate for plastics manufacturingintermediate for pharmaceutical synthesis
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Restricted or banned substances
Substances on this list are banned or restricted under the named regulation. This page is a compliance reference — verify your obligations under applicable law.
Relevant lists:California Proposition 65
CAS 563-47-3
Related Compounds
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Virelure
CAS56683-54-6
Insect pheromone attractant for pest control
ReferenceSame Category
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CAS56966-52-0
agrochemical intermediate
ReferenceSame Category
Urea
CAS57-13-6
Nitrogen fertilizer
ReferenceSame Category
Chlordane
CAS57-74-9
Pesticide and insecticide
Related Reading
Safety Reference
Danger
H225Highly flammable liquid and vapour
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H332Harmful if inhaled
H411Toxic to aquatic life with long lasting effects
H301Toxic if swallowed
H331Toxic if inhaled
H304May be fatal if swallowed and enters airways
H318Causes serious eye damage
H351Suspected of causing cancer
H335May cause respiratory irritation
H336May cause drowsiness or dizziness
H361Suspected of damaging fertility or the unborn child
H372Causes damage to organs through prolonged or repeated exposure
H373May cause damage to organs through prolonged or repeated exposure
H401Toxic to aquatic life
H371May cause damage to organs
Customs Tariff Classification
The international HS code for 3-Chloro-2-methylpropene (CAS 563-47-3) is 2903.29.
HS code (international, 6-digit)
2903.29
EU CN code (8-digit)
2903 29 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
3-chloro-2-methylprop-1-ene
InChIKey
OHXAOPZTJOUYKM-UHFFFAOYSA-N
SMILES
CC(=C)CCl
Synonyms (38)
- 1-Chloro-2-methyl-2-propene
- 1-Propene, 3-chloro-2-methyl-
- 2-Methallyl chloride
- 2-Methyl-2-propenyl chloride
- 2-Methyl-allylchlorid
- 2-Methylallyl chloride
- 2-methyl-3-chloropropene
- 3-CHLORO-2-METHYL-1-PROPENE
- 3-Chlor-2-methyl-prop-1-en
- 3-Chloro-2-methylprop-1-ene
- 3-Chloro-2-methylpropene
- 3-Chloro-2-methylpropene-1
- 3-Chloroisobutylene
- 3-Cloro-2-metil-prop-1-ene
- 3-chloro-2-methyl-l-propene
- 3-chloroisobutene
- CHLORO-2-METHYLPROPENE, 3-
- Chlorue de methallyle
- Chlorure de methallyle
- Cloruro di metallile
- Isobutenyl chloride
- Methylallyl chloride
- Propene, 3-chloro-2-methyl-
- beta-Methallyl chloride
- beta-Methylallyl chloride
- gamma-Chloroisobutylene
- methallylchloride