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2_4-DB

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									2,4-DB
From Wikipedia, the free encyclopedia

2,4-DB or 4-(2,4-dichlorophenoxy)butyric acid is a selective systemic phenoxy
                                                                                                                               2,4-DB [1]
herbicide used to control many annual and perennial broadleaf weeds in alfalfa,
peanuts, soybeans, and other crops. Its active metabolite, 2,4-D, inhibits growth
at the tips of stems and roots. It is classified in toxicity class III. It shows some
evidence of toxicity to dogs and cats, such as changes in body weight and
reduced numbers of offspring, when fed 25-80 milligrams per kilogram of body
weight for prolonged periods. Tests of carcinogenicity in this range yielded                                               IUPAC name

differing results. It is moderately toxic to fish.[1]                                                          4-(2,4-dichlorophenoxy)butanoic acid

                                                                                                                               Identifiers
References                                                                                               CAS number             94-82-6
                                                                                                         PubChem                1489
   1. ^ a b "Extension Toxicology Network: Pesticide Information Profiles"                 . Archived
                                                                                                         ChemSpider             1444
      from the original on 10 May 2008. Retrieved 15 June 2008.
                                                                                                         KEGG                   C14404
                                                                                                         Jmol-3D images         Image 1
                                                                                                                                SMILES
                                                                                                         Clc1cc(Cl)ccc1OCCCC(=O)O

                                                                                                                                 InChI
                                                                                                         InChI=1S/C10H10Cl2O3/c11-7-3-4-9(8(12)6-
                                                                                                         7)15-5-1-2-10(13)14/h3-4,6H,1-2,5H2,(H,13,14)

                                                                                                         Key: YIVXMZJTEQBPQO-UHFFFAOYSA-N

                                                                                                         InChI=1/C10H10Cl2O3/c11-7-3-4-9(8(12)6-
                                                                                                         7)15-5-1-2-10(13)14/h3-4,6H,1-2,5H2,(H,13,14)
                                                                                                         Key: YIVXMZJTEQBPQO-UHFFFAOYAK

                                                                                                                               Properties
                                                                                                         Molecular formula      C10 H10 Cl 2 O 3
                                                                                                         Molar mass             249.09 g/mol
                                                                                                         Appearance             Colorless to white crystal
                                                                                                         Melting point          117-119 °C

                                                                                                         Solubility in water    46 mg/L
                                                                                                                         (verify) (what is:   / ?)
                                                                                                         Except where noted otherwise, data are given for
                                                                                                            materials in their standard state (at 25 °C,
                                                                                                                              100 kPa)
                                                                                                                         Infobox references

  V   · T· E·                                                             Pest control: herbicides
                             acetochlor · alachlor · asulam · benfluralin · butachlor · diethatyl · diflufenican · dimethenamid · flamprop · metazachlor ·
       Anilides/Anilines
                             metolachlor · pendimethalin · pretilachlor · propachlor · propanil · trifluralin ·
         Aromatic acids      aminopyralid · chloramben · clopyralid · dicamba · picloram · pyrithiobac · quinclorac · quinmerac ·

                Arsenicals   cacodylic acid · copper arsenate · DSMA · MSMA ·

  Organophosphorus           bensulide · bilanafos · ethephon · fosamine · glufosinate · glyphosate · piperophos ·

                  Phenoxy    2,4-D · 2,4-DB · dichlorprop · fenoprop · MCPA · MCPB · 2,4,5-T ·

                 Pyridines   dithiopyr · fluroxypyr · imazapyr · thiazopyr · triclopyr ·

                Quaternary   diquat · MPP · paraquat ·
                             ametryn · atrazine · cyanazine · hexazinone · prometon · prometryn · propazine · simazine · simetryn · terbuthylazine ·
         Triazines
                      terbutryn ·
             Ureas    chlortoluron · DCMU · metsulfuron-methyl · monolinuron · tebuthiuron ·

             Others   3-AT · bromoxynil · clomazone · DCBN · dinoseb · juglone · mesotrione · methazole · metham sodium · sulfentrazone ·



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