Regulations last checked for updates: Nov 23, 2025

Title 40 - Protection of Environment last revised: Nov 23, 2025
All TitlesTitle 40Chapter IPart 455Subpart EAppendix - Table 1 to Part 455—List of Organic Pesticide Active Ingredients
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Appendix - Table 1 to Part 455—List of Organic Pesticide Active Ingredients
EPA census code Pesticide code Pesticide name CAS No.
110501Dicofol [1,1-Bis(chlorophenyl)-2,2,2-trichloroethanol]00115-32-2
251501Maleic Hydrazide00123-33-1
342002EDB [1,2-Ethylene dibromide]00106-93-4
482901Vancide TH [1,3,5-Triethylhexahydro-s-triazine]07779-27-3
529001Dichloropropene00542-75-6
717901Dowicil 75 [1-(3-Chloroallyl)-3,5,7-triaza-1-azoniaadamantanechloride]04080-31-3
8109901Triadimefon43121-43-3
944901Hexachlorophene (nabac)00070-30-4
1055004Tetrachlorophene01940-43-8
1155001Dichlorophene00097-23-4
1284001Dichlorvos00062-73-7
13102401Landrin-2 [2,3,5-trimethylphenylmethylcarbamate]02686-99-9
1482601Fenac [2,3,6-Trichlorophenylacetic acid]00085-34-7
14( 1)Fenac Salts and Esters( 1)
15820012,4,5-T [2,4,5-Trichlorophenoxyacetic acid]00093-76-5
15( 1)2,4,5-T Salts and Esters( 1)
16300012,4-D [2,4-Dichlorophenoxyacetic acid]00094-75-7
16( 1)2,4-D Salts and Esters( 1)
17308012,4-DB [2,4-Dichlorophenoxybutyric acid]00094-82-6
17( 1)2,4-DB Salts and Esters( 1)
1880811Anilazine [2,4-Dichloro-6-(o-chloroanilino)-s-triazine]00101-05-3
1936001Dinocap39300-45-3
2031301Dichloran (2,6-dichloro-4-nitroaniline)00099-30-9
218707Busan 90 [2-Bromo-4-hydroxyacetophenone]02491-38-5
2215801Mevinphos07786-34-7
2339001Sulfallate [2-chloroallyldiethyldithiocarbamate]00095-06-7
2484101Chlorfenvinphos00470-90-6
2510010Cyanazine21725-46-2
2619101Propachlor01918-16-7
2730501MCPA [2-Methyl-4-chlorophenoxyacetic acid]00094-74-6
27( 1)MCPA Salts and Esters( 1)
2899901Octhilinone26530-20-1
2967703Pindone00083-26-1
3031401Dichlorprop [2-(2,4-Dichlorophenoxy) propionic acid]00120-36-5
30( 1)Dichlorprop Salts and Esters( 1)
3131501MCPP [2-(2-Methyl-4-chlorophenoxy)propionic acid]00093-65-2
31( 1)MCPP Salts and Esters( 1)
3260101Thiabendazole00148-79-8
3380815Belclene 310 [2-(methylthio)-4-(ethylamino)-6-(1,2-dimethylamino)-s-triazine]22936-75-0
3421201Cloprop [2-(m-Chlorophenoxy)propionic acid]00101-10-0
34( 1)Cloprop Salts and Esters( 1)
3535603TCMTB [2-(Thiocyanomethylthio)benzothiazole]21564-17-0
3699001HAE [2-((Hydroxymethyl)amino) ethanol34375-28-5
376770Chlorophacinone03691-35-8
38102401Landrin-1 [3,4,5-trimethylphenylmethylcarbamate]02686-99-9
39101701Pronamide23950-58-5
40100501Methiocarb02032-65-7
4128201Propanil00709-98-8
421078013-Iodo-2-propynyl butylcarbamate55406-53-6
43860013-(a-Acetonylfurfuryl)-4-hydroxycoumarin [Coumafuryl]00117-52-2
43( 1)Coumafuryl Salts and Esters( 1)
4437507DNOC (4,6-dinitro-o-cresol)00534-52-1
45101101Metribuzin21087-64-9
4619401CPA (4-chlorophenoxyacetic acid)00122-88-3
46( 1)CPA Salts and Esters( 1)
4719201MCPB [4-(2-Methyl-4-chlorophenoxy)butyric acid]00094-81-5
47( 1)MCPB Salts and Esters( 1)
4844401Aminocarb [4-(dimethylamino)-m-tolylmethylcarbamate]02032-59-9
4984701Etridiazole02593-15-9
5055501Ethoxyquin00091-53-2
5159804Quinoliol sulfate (8-Quinoliol sulfate)00134-31-6
52103301Acephate30560-19-1
53114401Acifluorfen50594-66-6
53114402Acifluorfen Salts and Esters62476-59-9
5490501Alachlor15972-60-8
5598301Aldicarb00116-06-3
5669105Hyamine 3500 [Alkyl* dimethyl benzyl ammonium chloride * (50% C14, 40% C12, 10% C16)]68424-85-1
574001Allethrin (all isomers and allethrin coil)00584-79-2
5880801Ametryn00834-12-8
59106201Amitraz33089-61-1
6080803Atrazine01912-24-9
61105201Bendiocarb22781-23-3
6299101Benomyl and Carbendazim17804-35-2
638901Benzene Hexachloride00608-73-1
649501Benzyl benzoate00120-51-4
6510101Lethane 384 [Beta-Thiocyanoethyl esters of mixed fatty acids containing from 10-18 carbons]00301-11-1
66104301Bifenox42576-02-3
6812301Bromacil00314-40-9
6812302Bromacil, lithium53404-19-6
6935301Bromoxynil01689-84-5
6935302Bromoxynil octanoate01689-99-2
70112301Butachlor23184-66-9
70101401Giv-gard [β-Bromo-β-nitrostyrene]07166-19-0
7381701Captafol02425-06-1
7481301Captan00133-06-2
7556801Carbaryl [Sevin]00063-25-2
7690601Carbofuran01563-66-2
7790602Carbosulfan55285-14-8
7829901Chloramben00133-90-4
78( 1)Chloramben Salts and Esters( 1)
7958201Chlordane00057-74-9
8027301Chloroneb02675-77-6
8181501Chloropicrin00076-06-2
8281901Chlorothalonil01897-45-6
8325501Chloroxuron01982-47-4
8483701Stirofos00961-11-5
8559102Chlorpyrifos methyl05598-13-0
8659101Chlorpyrifos02921-88-2
8714504Mancozeb08018-01-7
90109301Fenvalerate51630-58-1
9143401Cycloheximide00066-81-9
9228901Dalapon (2,2-dichloropropionic acid)00075-99-0
92( 1)Dalapon Salts and Esters( 1)
9327501Dienochlor02227-17-0
9457601Demeton [O,O-Diethyl O-(and S-) (2-ethylthio)ethyl) phosphorothioate]08065-48-3
95104801Desmedipham13684-56-5
9614502Diammonium ethylenebisdithiocarbamate03566-10-7
9711301DBCP [Dibromo-3-chloropropane]00096-12-8
9829801Dicamba [3,6-Dichloro-o-anisic acid]01918-00-9
98( 1)Dicamba Salts and Esters( 1)
9929601Dichlone (Phygon)00117-80-6
100103401Thiophanate ethyl23564-06-9
10132101Perthane [Diethyl diphenyl dichloroethane and related compounds]00072-56-0
10286501EXD [Diethyl dithiobis (thionoformate)]00502-55-6
10357801Diazinon00333-41-5
104108201Diflubenzuron35367-38-5
10569122Benzethonium chloride00121-54-0
10635001Dimethoate00060-51-5
10753501Parathion methyl00298-00-0
10835201Dicrotophos00141-66-2
10958801Crotoxyphos07700-17-6
11078701DCPA [Dimethyl 2,3,5,6-tetrachloroterephthalate]01861-32-1
11157901Trichlorofon00052-68-6
11237505Dinoseb00088-85-7
11337801Dioxathion00078-34-2
11467701Diphacinone00082-66-6
11536601Diphenamid00957-51-7
11638501Diphenylamine00122-39-4
11647201MGK 326 [Dipropyl isocinchomeronate]00113-48-4
11863301Nabonate [Disodium cyanodithioimidocarbonate]00138-93-2
11935505Diuron00330-54-1
12044303Metasol DGH [Dodecylguanidine hydrochloride]13590-97-1
12144301Dodine (dodecylquanidine acetate)02439-10-3
12279401Endosulfan [Hexachlorohexahydromethano-2,4,3-benzodioxathiepin-3-oxide]00115-29-7
12338901Endothall00145-73-3
123( 1)Endothall Salts and Esters( 1)
12441601Endrin00072-20-8
125113101Ethalfluralin55283-68-6
12658401Ethion00563-12-2
12741101Ethoprop13194-48-4
128100601Fenamiphos22224-92-6
12928801Chlorobenzilate00510-15-6
13041405Butylate02008-41-5
13159901Famphur00052-85-7
132206600Fenarimol60168-88-9
13353301Fenthion00055-38-9
13434801Ferbam14484-64-1
13535503Fluometuron02164-17-2
13675002Fluoroacetamide00640-19-7
13781601Folpet00133-07-3
138103601Glyphosate [N-(Phosphonomethyl) glycine]01071-83-6
138( 1)Glyphosate Salts and Esters( 1)
139103602Glyphosine02439-99-8
14044801Heptachlor00076-44-8
141115601Cycloprate54460-46-7
142107201Hexazinone51235-04-2
143109401Isofenphos25311-71-1
144100201Isopropalin33820-53-0
14547601Propham00122-42-9
14697401Karbutilate04849-32-5
1479001Lindane00058-89-9
14835506Linuron00330-55-2
14939504Malachite green [Ammonium(4-(p-(dimethylamino)-alpha-phenylbenzylidine)-2,5-cyclohexadien-1-ylidene)-dimethyl chloride]00569-64-2
15057701Malathion00121-75-5
15114505Maneb12427-38-2
15234802Manganous dimethyldithiocarbamate15339-36-3
153114001Mefluidide [N-(2,4-dimethyl-5-(((trifluoromethyl) sulfonyl)-amino) phenyl acetamide]53780-34-0
153( 1)Mefluidide Salts and Esters( 1)
154101201Methamidophos10265-92-6
155100301Methidathion00950-37-8
15690301Methomyl16752-77-5
157105401Methoprene40596-69-8
15834001Methoxychlor00072-43-5
15969134Methylbenzethonium chloride15716-02-6
16053201Methylbromide00074-83-9
16269129Hyamine 2389 [Methyldodecylbenzyl trimethyl ammonium chloride 80% and methyldodecylxylylene bis (trimethylammoniumchloride) 20%]01399-80-0
16368102Methylenebisthiocyanate06317-18-6
16454101Quinmethionate02439-01-2
165108801Metolachlor51218-45-2
16644201Mexacarbate00315-18-4
16714601Metiram09006-42-2
16835502Monuron TCA00140-41-0
16935501Monuron00150-68-5
170103001Napropamide15299-99-7
17180301Deet00134-62-3
17214503Nabam00142-59-6
17334401Naled00300-76-5
17435801Norea18530-56-8
175105801Norflurazon27314-13-2
17630701N-1-Naphthylphthalimide05333-99-3
17630702Naptalam [N-1-Naphthylphthalamic acid]00132-66-1
17630703Naptalam Salts and Esters00132-67-2
17757001MGK 264 [N-2-Ethylhexyl bicycloheptene dicarboximide]00136-45-8
17884301Benfluralin01861-40-1
17979501Sulfotepp03689-24-5
18079101Aspon03244-90-4
18136501Coumaphos00056-72-4
18232701Fensulfothion00115-90-2
18332501Disulfoton00298-04-4
184105901Fenitrothion00122-14-5
18559201Phosmet00732-11-6
18658001Azinphos Methyl00086-50-0
18758702Oxydemeton methyl00301-12-2
192( 1)Organo-tin pesticides( 1)
194104201Oryzalin19044-88-3
195103801Oxamyl23135-22-0
196111601Oxyfluorfen42874-03-3
197111501Bolstar [Sulprofos]35400-43-2
198219900Sulprofos Oxon38527-90-1
19941801Santox (O-Ethyl O-(p-nitrophenyl) phenylphosphonothioate02104-64-5
20041701Fonofos00944-22-9
20147802Propoxur (o-Isopropylphenylmethylcarbamate)00114-26-1
20257501Parathion00056-38-2
203108501Pendimethalin40487-42-1
20456502Pentachloronitrobenzene00082-68-8
20563001Pentachlorophenol00087-86-5
20663003Pentachlorophenol Salts and Esters00131-52-2
207108001Perfluidone37924-13-3
208109701Permethrin52645-53-1
20998701Phenmedipham13684-63-4
21064501Phenothiazine00092-84-2
21164103Phenylphenol00090-43-7
21257201Phorate00298-02-2
21397701Phosalone02310-17-0
21418201Phosphamidon13171-21-6
2155101Picloram01918-02-1
2155104Picloram Salts and Esters02545-60-0
21667501Piperonyl butoxide00051-03-6
21769183PBED (Busan 77) [Poly (oxyethylene (dimethylimino) ethylene (dimethylimino) ethylene dichloride]31512-74-0
21834803Busan 85 [Potassium dimethyldithiocarbamate]00128-03-0
219102901Busan 40 [Potassium N-hydroxymethyl-N-methyldithiocarbamate]51026-28-9
22039002KN Methyl [Potassium N-methyldithiocarbamate]00137-41-7
221101301Metasol J26 [Potassium N-(alpha-(nitroethyl) benzyl)-ethylenediamine]53404-62-9
222111401Profenofos41198-08-7
22380804Prometon01610-18-0
22480805Prometryn07287-19-6
22597601Propargite02312-35-8
22680808Propazine00139-40-2
22777702Propionic acid00079-09-4
228119301Propamocarb and Propamocarb HCL24579-73-5
22969004Pyrethrin coils00121-21-1
23069001Pyrethrin I
23169002Pyrethrum (other than pyrethrins)08003-34-7
23269006Pyrethrin II00121-29-9
23397801Resmethrin10453-86-8
23458301Ronnel00299-84-3
23571003Rotenone00083-79-4
23674801DEF [S,S,S-Tributyl phosphorotrithioate]00078-48-8
23735509Siduron01982-49-6
23882501Silvex [2-(2,4,5-Trichlorophenoxypropionic acid)]00093-72-1
238( 1)Silvex Salts and Esters( 1)
23980807Simazine00122-34-9
240103901Bentazon25057-89-0
24134804Carbam-S [Sodium dimethyldithiocarbanate]00128-04-1
24275003Sodium monofluoroacetate00062-74-8
24339003Vapam [Sodium methyldithiocarbamate]00137-42-8
24457101Sulfoxide00120-62-7
24541301Cycloate01134-23-2
24641401EPTC [S-Ethyl dipropylthiocarbamate]00759-94-4
24741402Molinate02212-67-1
24841403Pebulate01114-71-2
24941404Vernolate01929-77-7
25035604HPTMS [S-(2-Hydroxypropyl) thiomethanesulfonate]29803-57-4
2519801Bensulide00741-58-2
252105501Tebuthiuron34014-18-1
25359001Temephos03383-96-8
25412701Terbacil05902-51-2
255105001Terbufos13071-79-9
25680814Terbuthylazine05915-41-3
25780813Terbutryn00886-50-0
25863004Tetrachlorophenol25167-83-3
25863007Tetrachlorophenol Salts and Esters( 1)
25935602Dazomet00533-74-4
260102001Thiophanate methyl23564-05-8
26179801Thiram00137-26-8
26280501Toxaphene08001-35-2
26374901Merphos [Tributyl phosphorotrithioate]00150-50-5
26436101Trifluralin01582-09-8
26586002Warfarin [3-(a-Acetonylbenzyl)-4-hydroxycoumarin]00081-81-2
265( 1)Warfarin Salts and Esters( 1)
26651705Zinc MBT [Zinc 2-mercaptobenzothiazolate]00155-04-4
26714506Zineb12122-67-7
26834805Ziram00137-30-4
26978802S-(2,3,3-trichloroallyl) diisopropylthiocarbamate02303-17-5
27069005Phenothrin26002-80-2
27169003Tetramethrin07696-12-0
27218301Chloropropham00101-21-3

Note:

1 Multiple compounds for active ingredient.

[58 FR 50691, Sept. 28, 1993]
authority: Secs. 301, 304, 306, 307, and 501, Pub. L. 92-500, 86 Stat. 816, Pub. L. 95-217, 91 Stat. 156, and Pub. L. 100-4 (33 U.S.C. 1311,1314,1316,1317,and
source: 43 FR 17776, Apr. 25, 1978, unless otherwise noted.
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