C22H19Cl2NO3
416.3 g/mol
AgrochemicalDanger
Alpha-cypermethrin
CAS65731-84-2EC265-898-0
Category
Agrochemical
Compound Class
Ester
Primary Use
pyrethroid insecticide
Alpha-cypermethrin is a highly active pyrethroid insecticide used to control a wide range of chewing and sucking insects in crops, forestry, and public health settings. It is an enantiomer of cypermethrin and is not currently registered for use in the United States.
Control of chewing and sucking insects in fruits, vegetables, vines, cereals, maize, cotton, rice, and other cropsInsecticide for public health pestsAnimal ectoparasiticide
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.
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Related Compounds
StrongSame Parent
(1S)-cis-(alphaR)-cypermethrin
CAS67375-30-8
Pyrethroid insecticide
ApplicationSame Use
Flumethrin
CAS69770-45-2
pyrethroid insecticide
ApplicationSame Use
Resmethrin
CAS10453-86-8
pyrethroid insecticide
ApplicationSame Use
Transfluthrin
CAS118712-89-3
pyrethroid insecticide
ApplicationSame Use
Empenthrin
CAS54406-48-3
pyrethroid insecticide
ReferenceSame Category
(S)-methoprene
CAS65733-16-6
Insect growth regulator
ReferenceSame Category
(R)-methoprene
CAS65733-17-7
insect growth regulator
ReferenceSame Category
3,4-Dichlorobenzonitrile
CAS6574-99-8
agrochemical intermediate
Related Reading
Safety Reference
Danger
H301Toxic if swallowed
H335May cause respiratory irritation
H373May cause damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H332Harmful if inhaled
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H300Fatal if swallowed
H318Causes serious eye damage
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
Customs Tariff Classification
The international HS code for Alpha-cypermethrin (CAS 65731-84-2) is 2926.90.
HS code (international, 6-digit)
2926.90
EU CN code (8-digit)
2926 90 70
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
trans-[(S)-cyano-(3-phenoxyphenyl)methyl] (1R,3R)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane-1-carboxylate
InChIKey
KAATUXNTWXVJKI-NSHGMRRFSA-N
SMILES
CC1([C@H]([C@H]1C(=O)O[C@H](C#N)C2=CC(=CC=C2)OC3=CC=CC=C3)C=C(Cl)Cl)C
Synonyms (46)
- ALPHA-CYPERMETHRIN [MART.]
- Aeralfam
- Alfamethrin
- Alfazot
- Alfoxylate
- Alphaguard
- Alphamethrin
- Astound Duo
- Bestox
- Beta-cypermethrin
- CYPERMETHRIN, S(1R,3R)-
- Centaur
- Cismix
- Concord
- Contest
- Dominex
- Dudu alpha
- Fastac
- Fastac 10 EC
- Fastac 100EC
- Fastac CS
- Fastac Duo
- Fendona
- Fendona 60SC
- Fendona 65C
- Mageos
- NRDC 168S
- Sentry (insecticide)
- Ultimate
- alpha-Cypermetrin
- alpha-cypermethrin
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