Compendium of Pesticide Common Names

Names for simple esters and salts of pesticides


One of the principles set out in ISO 257 Pesticides and other agrochemicals – Principles for the selection of common names is that common names for simple esters and salts should be assigned to the parent acid, alcohol or base when the biological activity derives from the parent.

The identity of the simple anion, cation, or radical is then indicated by adding a modifier to the common name. For esters and salts of acids, and for salts of alcohols, the modifier is a hyphenated suffix. For esters of alcohols, and for salts of bases, the modifier is a separate word. For example:

simple esters of acids
chlorthal-dimethyl, chlorthal-monomethyl, cyhalofop-butyl, fenchlorazole-ethyl, flamprop-isopropyl, mefenpyr-diethyl, sulfometuron-methyl, 2,4,5-T-pentyl
simple salts of acids
dalapon-magnesium, fosetyl-aluminium, fosamine-ammonium, endothal-diammonium, mecoprop-P-potassium, metam-sodium, thiosultap-disodium, thiosultap-monosodium
simple salts of alcohols
bromoxynil-potassium, dinoseb-ammonium, DNOC-sodium
simple esters of alcohols
dinoterb acetate, bromoxynil butyrate, quinacetol sulfate
simple salts of bases
dodemorph acetate, iminoctadine triacetate, diquat dibromide, formetanate hydrochloride, imazalil sulfate, nicotine sulfate, oxpoconazole fumarate, streptomycin sesquisulfate

Multiplicative affixes are used when they are necessary to avoid ambiguity.

Traditional names for ions and radicals

For simple anions, cations and radicals, traditional names are used as modifiers for common names. They are also used for some less simple substances, when more systematic names would include locants and the traditional names are unambiguous. For example:

Traditional names for ions and radicals
Traditional nameSystematic nameExample
butyratebutanoatebromoxynil butyrate
diethylammoniumN-ethylethanaminium2,4-D-diethylammonium
dimethylammoniumN-methylmethanaminiumdichlorprop-dimethylammonium
ethylammoniumethanaminiumdichlorprop-ethylammonium
fumarate(2E)-2-butenedioateoxpoconazole fumarate
isobutyl2-methylpropylmecoprop-P-isobutyl
isopropyl1-methylethyl (= propan-2-yl)benthiavalicarb-isopropyl
isopropylammoniumpropan-2-aminiumdicamba-isopropylammonium
lauratedodecanoatepentachlorophenyl laurate
methylammoniummethanaminiumchloramben-methylammonium
oleate(9Z)-octadec-9-enoatecopper oleate
propargylprop-2-ynylchlorazifop-propargyl
triethylammoniumN,N-diethylethanaminiumtriclopyr-triethylammonium

Recommended names for ions and radicals

The chemical names of some relatively simple substances can be more complicated than is desirable in a common name, and so recommended names were developed or adopted for some of the more frequently occurring ions and radicals and published in ISO 257:2004 (edition 3). These names, and others added in ISO 257:2018 (edition 4), are listed in the following table and should be used as modifiers for common names in place of the chemical names.

Recommended names for ions and radicals
Recommended nameSystematic nameExample
albesilatealkylbenzenesulfonate
Structural formula of albesilate
iminoctadine trialbesilate
biproamine*bis(3-aminopropyl)methylammonium
Structural formula of biproamine
dicamba-biproamine
butometyl2-butoxy-1-methylethyl
Structural formula of butometyl
fluroxypyr-butometyl
butotyl2-butoxyethyl
Structural formula of butotyl
dichlorprop-butotyl
diclexinedicyclohexylammonium
Structural formula of diclexine
dinex-diclexine
dimolamine(2-hydroxyethyl)dimethylammonium
Structural formula of dimolamine
oxapyrazon-dimolamine
diolamine†bis(2-hydroxyethyl)ammonium
(= diethanolamine)
Structural formula of diolamine
2,4-D-diolamine
doboxyl*2-butoxypropyl
Structural formula of doboxyl
2,4,5-T-doboxyl
etexyl*2-ethylhexyl
Structural formula of etexyl
dichlorprop-P-etexyl
ethadyl1,2-ethanediyl (= ethylene)
Structural formula of ethadyl
TCA-ethadyl
etotyl2-ethoxyethyl
Structural formula of etotyl
haloxyfop-etotyl
isoctyl“iso-octyl” (mixed C-8 alkyl radical)MCPA-isoctyl
meptyl1-methylheptyl (= octan-2-yl)
Structural formula of meptyl
fluroxypyr-meptyl
metilsulfate†methyl sulfate
Structural formula of metilsulfate
difenzoquat metilsulfate
mexyl1-methylhexyl (= heptan-2-yl)
Structural formula of mexyl
cloquintocet-mexyl
olamine†(2-hydroxyethyl)ammonium
(= ethanolamine)
Structural formula of olamine
clopyralid-olamine
tefuryl(tetrahydrofuran-2-yl)methyl
(= tetrahydrofurfuryl)
Structural formula of tefuryl
quizalofop-P-tefuryl
terboxyl*3-butoxypropyl
Structural formula of terboxyl
fenoprop-terboxyl
trimesiumtrimethylsulfonium
Structural formula of trimesium
glyphosate-trimesium
tripromine*tris(2-hydroxypropyl)ammonium
Structural formula of tripromine
aminopyralid-tripromine
trolamine†tris(2-hydroxyethyl)ammonium
(= triethanolamine)
Structural formula of trolamine
2,4,5-T-trolamine

† Adopted WHO INN modifier
* Introduced in 2018 in 4th edition of ISO 257.

Index of simple esters and salts

There is a separate index of simple salts and esters, and they are also listed in the Notes field of the data sheets of their parent compounds. Their IUPAC systematic names, CAS systematic names, CAS Registry Numbers, molecular formulae and InChIKeys are included in the indexes.


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