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Home/Compounds/Agrochemical/Simazine
C7H12ClN5
201.66 g/mol
AgrochemicalWarning

Simazine

CAS122-34-9EC204-535-2
Category
Agrochemical
Compound Class
Heterocycle
Primary Use
Selective herbicide for broadleaf weeds

Simazine is a selective herbicide used for the control of broadleaf weeds and annual grasses in various agricultural and non-agricultural settings. It functions by inhibiting photosynthesis in target plants following soil application.

Control of broadleaf weeds and annual grasses in crops such as corn, apples, oranges, almonds, and alfalfaWeed control in turf, ornamentals, and asparagusUse as an algicide in ponds and aquariums

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 122-34-9

Related Compounds

SimilarStructure SimilarSimilarity 0.73

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Selective herbicide for crop protection

SimilarStructure SimilarSimilarity 0.73

Terbuthylazine

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broad-spectrum herbicide for crops

ApplicationSame Use

Clopyralid

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selective herbicide for broadleaf weeds

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2,4-D-2-ethylhexyl

CAS1928-43-4

selective herbicide for broadleaf weeds

ReferenceSame Category

Phenoxyacetic acid

CAS122-59-8

Building block for phenoxy herbicides

ReferenceSame Category

4-chlorophenoxyacetic acid

CAS122-88-3

plant growth regulator

ReferenceSame Category

Cyhalofop-butyl

CAS122008-85-9

Herbicide for post-emergence grass control in rice

ReferenceSame Category

(1S,3S)-3-[(Z)-2-chloro-3,3,3-trifluoroprop-1-enyl]-2,2-dimethylcyclopropane-1-carboxylic acid

CAS122406-91-1

Cyhalothrin metabolite or intermediate

Related Reading

Why Does One Chemical Intermediate End Up in Dozens of Pesticides? Inside the Reaction Interface Economy

A single pyridine intermediate feeds four different neonicotinoid insecticides. A single pyrazole acid feeds a whole family of SDHI fungicides. This isn't coincidence — it's the Reaction Interface Economy, the organizing logic behind modern agrochemical R&D and its supply chain.

Read more

Safety Reference

Harmful
Harmful
Health Hazard
Health Hazard
Environmental Hazard
Environmental Hazard
Warning
H351Suspected of causing cancer
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H302Harmful if swallowed
H319Causes serious eye irritation
H320Causes eye irritation
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
H317May cause an allergic skin reaction
Regulatory Compliance1
  • California Proposition 65USRegulation
    Listed· listed since 2016-07-15Source

Customs Tariff Classification

The international HS code for Simazine (CAS 122-34-9) is 2933.69, 3808.93.

HS code (international, 6-digit)

2933.69, 3808.93

EU CN code (8-digit)

2933 69 10, 3808 93 13

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

6-chloro-2-N,4-N-diethyl-1,3,5-triazine-2,4-diamine

InChIKey

ODCWYMIRDDJXKW-UHFFFAOYSA-N

SMILES

CCNC1=NC(=NC(=N1)Cl)NCC

Synonyms (102)
  • 1-Chloro-3,4,6-triazine
  • 122-34-9(Acetone)
  • A 2079
  • Aktinit S
  • Amizine
  • Aquazine
  • Aquazine 90WDG
  • Azotop
  • Batazina
  • Batazine FLO
  • Bitemol
  • Bitemol S 50
  • CAT (herbicide)
  • Caliber 90
  • Caswell No. 740
  • Cekusan Gesatop
  • Cekusima
  • Cekuzina-S
  • Framed
  • G 27692
  • Geigy 27,692
  • Gesapun
  • Gesaran
  • Gesatop
  • Gesatop 50
  • H 1803
  • Herbatoxol S
  • Herbazin
  • Herbazin 50
  • Herbex
  • Herbex (pesticide)
  • Herboxy
  • Herboxydiene
  • Hungazin DT
  • Premazine
  • Primatel S
  • Primatol S
  • Princep
  • Princep 4G
  • Princep 4L
  • Princep 80W
  • Princep Caliber 90
  • Printop
  • Printrex
  • Radocon
  • Radokor
  • Sim-Trol 4L
  • Simadex
  • Simanex
  • Simatox
  • Simatsin-neste
  • Simazat
  • Simazin
  • Simazin solution
  • Simazine (Standard)
  • Simazine 50
  • Simazine 80W
  • Simazine solution
  • Simazine, PESTANAL(R)
  • Symazine
  • Tafazine
  • Tafazine (VAN)
  • Tafazine 50-W
  • Taphazine
  • Triazine A 384
  • W 6658
  • Yrodazin
  • Zeapur
  • imazine
  • permazine
  • s-Triazine,6-bis(ethylamino)-
  • simazine