MCPB

MCPB

Names
IUPAC name 4-(4-Chloro-2-methylphenoxy)butanoic acid
Identifiers
CAS Number	94-81-5 Y
ChemSpider	6938 N
Jmol 3D model	Interactive image
PubChem	7207
InChI InChI=1S/C11H13ClO3/c1-8-7-9(12)4-5-10(8)15-6-2-3-11(13)14/h4-5,7H,2-3,6H2,1H3,(H,13,14) N Key: LLWADFLAOKUBDR-UHFFFAOYSA-N N InChI=1/C11H13ClO3/c1-8-7-9(12)4-5-10(8)15-6-2-3-11(13)14/h4-5,7H,2-3,6H2,1H3,(H,13,14) Key: LLWADFLAOKUBDR-UHFFFAOYAB
SMILES CC1=C(C=CC(=C1)Cl)OCCCC(=O)O
Properties
Chemical formula	C11H13ClO3
Molar mass	228.67 g/mol
Vapor pressure	{{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

MCPB, 2,4-MCPB, 4-(4-chloro-o-tolyloxy)butyric acid (IUPAC), or 4-(4-chloro-2-methylphenoxy)butanoic acid (CAS) is a phenoxybutyric herbicide. In the United States it is registered for use on pea crops before flowering, for post-emergence control of broadleaf annual and perennial weeds including Canadian thistle, buttercup, mustard, purslane, ragweed, common lambsquarters, pigweed, smartweed, sowthistle, and morning glory. It has low to moderate acute toxicity, with kidney and liver effects as the main hazard concerns. It is not volatile, persistent, or likely to bioconcentrate. The maximum residue permitted on peas is 0.1 parts per million.

External links

• MCPB in the Pesticide Properties DataBase (PPDB)