Name

Status

Main use

Chemical 
type

Physical 
state

Route

LD₅₀ (mg/kg)

Remarks

Acephate

ISO

I

OP

S

O

945

Acetochlor

ISO

H

L

O

2,950

Acifluorfen

ISO

H

S

O

1,370

Strong irritant to eyes

Allethrin

ISO

I

PY

oil

O

c685

EHC 87; HSG 24

Ametryn

ISO

H

T

S

O

1,110

Amitraz

ISO

AC

S

O

800

Azamethiphos

ISO

I

OP

S

O

1,010

Azidithion

N(F)

See menazon

Barban

ISO

H

S

O

1,300

Bensultap

ISO

I

S

O

1,100

Bentazone

ISO

H

S

O

1,100

Benzoylprop-ethyl

(ISO)

H

S

O

1,555

Benzthiazuron

ISO

H

S

O

1,280

Bromofenoxim

ISO

H

S

O

1,217

Bromophos

ISO

I

OP

S

O

c1,600

DS 76

Buthidazole

ISO

H

S

O

1,480

Cacodylic acid

See dimethylarsinic acid

Carbofos

N(U)

See malathion

Chlorfenac

ISO

H

OC

S

O

575

Chlorfenethol

ISO

AC

OC

S

O

930

Chlorfenson

ISO

AC

OC

S

O

c2,000

Irritant to skin

Chlorinat

N(U)

See barban

Chlormequat (chloride)

ISO

PGR

S

O

670

Chloroacetic acid

C

H

S

O

650

Irritant to skin and eyes; data refer to sodium salt

Chlorobenzilate

ISO

AC

OC

S

O

700

Chlorocholine chloride

C

See chlormequat

Chlorthiamid

ISO

H

S

O

757

Cismethrin

ISO

Resmethrin is a mixture of isomers, the 
trans isomer (70-80%) being also known as 
bioresmethrin and the cis isomer (20-30%) as 
cismethrin. Bioresmethrin (see table 62.5) alone 
is of much lower toxicity (oral LD₅₀ 9,000 mg/kg)

(DS 34)

Citrex

N(U)

See dodine

Clofop

ISO

H

L

O

1,208

Copper hydroxide

C

F

S

O

1,000

Copper oxychloride

C

F

S

O

1,440

4-CPA

ISO

PGR

S

O

850

Crufomate

ISO

I

OP

S

O

770

Cycloate

ISO

H

TC

L

O

+2,000

Cyhexatin

ISO

AC

OT

S

O

540

Cymoxanil

ISO

F

S

O

1,196

Cyproconazole

N(B)

F

S

O

1,020

Dazomet

ISO

F-S

S

O

640

Irritant to skin and eyes

2,4-DB

N(B)

H

S

O

700

DCBN

N(J)

See chlorthiamid

Deet

See diethyltoluamide

Dehydroacetic acid

C

F

S

O

1,000

2,4-DES

N(B,U)

See disul

Desmetryn

ISO

H

T

S

O

1,390

Diallyl dichloroacetamide

See dichlormid

Dicamba

ISO

H

S

O

1,707

Dichlone

ISO

FST

S

O

1,300

Dichlormid

N(A)

H

L

O

2,080

Dichlorobenzene

C

FM

S

O

500-5,000

Mixture of isomers

Dichlorophen

ISO

F

OC

S

O

1,250

Dichlorprop

ISO

H

S

O

800

Diclofop

ISO

H

S

O

565

Dicofol

ISO

AC

S

O

c690

DS 81

Dienochlor

ISO

AC

S

O

3,160

Acutely toxic by inhalation; skin sensitizer

Diethyltoluamide

ISO

RP (insect)

L

O

c2,000

DS 80

Difenoconazole

ISO

F

T

S

O

1,453

Dimepiperate

ISO

H

TC

S

O

946

Dimethachlor

ISO

H

S

O

1,600

Dimethametryn

ISO

H

T

L

O

3,000

Dimethipin

ISO

H

S

O

1,180

Dimethylarsinic acid

C

H

S

O

1,350

Diniconazole

ISO

F

S

O

639

Dinocap

ISO

AC,F

CNP

S

O

980

Diphenamid

ISO

H

S

O

970

Disul

ISO

H

S

O

730

Dithianon

ISO

F

S

O

640

2,4-DP

N(U)

See dichlorprop

Dodine

ISO

F

S

O

1,000

Doguadine

N(F)

See dodine

DSMA

See methylarsonic acid

Empenthrin ((1R) isomers)

ISO

I

PY

oil

O

+2,280

Ephirsulphonate

N(U)

See chlorfenson

Esprocarb

ISO

H

TC

L

O

+2,000

Skin and eye irritant

Etacelasil

ISO

PGR

L

O

2,065

Etaconazole

ISO

F

S

O

1,340

Ethohexadiol

N(A)

RP (insect)

L

O

2,400

Etridiazole

ISO

F

L

O

2,000

Fenoprop

ISO

H

S

O

650

Fenson

ISO

AC

S

O

1,550

Fenothiocarb

ISO

L

C

S

O

1,150

Fenpropidin

ISO

F

S

O

1,440

Fenthiaprop

N(B)

H

S

O

915

Ferimzone

ISO

F

S

O

725

Flamprop

ISO

H

S

O

1,210

Fluchloralin

ISO

H

S

O

1,550

Fluoroglycofen

N(B)

H

S

O

1,500

Flurprimidol

ISO

PGR

S

O

709

Flusilazole

N(B)

F

S

O

1,110

Flutriafol

ISO

F,FST

T

S

O

1,140

Fomesafen

ISO

H

OC

S

O

1,250

Fuberidazole

ISO

F

S

O

1,100

Furalaxyl

ISO

F

S

O

940

Glufosinate

ISO

H

S

O

1,625

Heptopargil

ISO

PGR

L

O

2,100

Hexazinone

ISO

H

S

O

1,690

Hydramethylnon

N(A,B)

I

S

O

1,200

IBP

See iprobenphos

Iprobenphos

N(B)

F

S

O

600

Isoprothiolane

ISO

F

S

O

1,190

Isoproturon

ISO

H

S

O

1,800

Isouron

ISO

H

S

O

630

Isoxapyrifop

ISO

H

S

O

500

Kelthane

N(J)

See dicofol

Malathion

ISO

I

OP

L

O

c2,100

LD₅₀ value can vary according to impurities. 
This value has been adopted for classification 
purposes and is that of a technical product 
conforming to WHO specifications; DS 29

Maldison

N(Aus,NZ)

See malathion

MCPA

ISO

H

S

O

700

MCPA-thioethyl

ISO

H

S

O

790

MCPB

ISO

H

S

O

680

Mecoprop

ISO

H

S

O

930

Mecoprop-P

ISO

H

S

O

1,050

Mefluidide

ISO

H

S

O

1,920

Menazon

ISO

AP

OP

S

O

1,950

Mepiquat

ISO

PGR

S

O

1,490

Metalaxyl

ISO

F

S

O

670

Metaxon

N(U)

See MCPA

Metconazole

ISO

F

S

O

660

Methazole

N(A,B)

H

S

O

4,543

Slightly irritant to eyes

2-Methoxyethlymercury silicate

C

FST

OM

S

O

1,140

Methylarsonic acid

ISO

H

S

O

1,800

Metolachlor

ISO

H

L

O

2,780

MSMA

See methylarsonic acid

Myclobutanil

N(B)

F

S

O

1,600

2-Napthyloxy acetic acid

ISO

PGR

S

O

600

Nitrapyrin

ISO

B-S

S

O

1,072

Nuarimol

ISO

F

S

O

1,250

Octhilinone

ISO

F

S

O

1,470

N-octyl bicycloheptene 
dicarboximide

C

SY

L

O

2,800

Oxadixyl

N(B)

F

S

O

1,860

Paclobutrazol

ISO

PGR

S

O

1,300

Pallethrine

N(F)

See allethrin

Para-dichlorobenzene

See dichlorobenzene

Pendimethalin

ISO

H

S

O

1,050

Perfluidone

ISO

H

S

O

920

Pimaricin

N(B)

F

S

O

2,730

Antibiotic, identical with tennecetin and 
natamycin

Piproctanyl

ISO

PGR

S

O

820

Pirimiphos-methyl

ISO

I

OP

L

O

2,018

DS 49

Prochloraz

ISO

F

S

O

1,600

Propachlor

ISO

H

S

O

1,500

DS 78

Propanil

ISO

H

S

O

c1,400

Propargite

ISO

AC

L

O

2,200

Pyrazoxyfen

ISO

H

S

O

1,644

Pyridaben

ISO

AC

S

O

820

Pyridaphenthion

N(J)

I

OP

S

O

769

Pyridate

ISO

H

S

O

c2,000

Pyrifenox

ISO

F

L

O

2,900

Quinoclamine

ISO

H

S

O

1,360

Quizalofop

N(B)

H

S

O

1,670

Resmethrin

ISO

I

PY

S

O

2,000

See cismethrin; EHC 92, DS 83, HSG 25

Ryania

C

I

S

O

c750

LD₅₀ varies: vegetable product

Sesamex

N(A)

SY

L

O

2,000

Sethoxydim

ISO

H

L

O

3,200

Silvex

N(A)

See fenoprop

Simetryn

ISO

H

T

S

O

1,830

Sodium chlorate

ISO

H

S

O

1,200

Sulfluramid

ISO

I

S

O

543

Sulfoxide

N(A)

SY

L

O

2,000

2,3,6-TBA

ISO

H

S

O

1,500

Tebuthiuron

ISO

H

S

O

644

Thiram

ISO

F

S

O

560

DS 71

TMTD

N(U)

See thiram

2,4,5-TP

N(F,J,U)

See fenoprop

Tralkoxydim

ISO

H

S

O

934

Triadimefon

ISO

F

S

O

602

Triadimenol

ISO

FST

S

O

900

Tri-allate

ISO

H

TC

L

O

2,165

HSG 89

Trichlorfon

ISO

H

OP

S

O

560

DS 27; EHC 132; HSG 66

Triclopyr

ISO

H

S

O

710

Tridiphane

N(B)

H

S

O

1,740

Trifenmorph

ISO

M

S

O

1,400

DS 64

Triflumizole

N(B)

F

S

O

695

Undecan-2-one

C

RP 
(dogs,cats)

oil

O

2,500

Uniconazole

ISO

PGR

S

O

1,790

XMC

N(J)

I

C

S

O

542

Ziram

ISO

F

S

O

1,400

Irritant to skin; DS 73