MCPB | SIELC

CAS Number	94-81-5
Molecular Formula	C11H13ClO3
Molecular Weight	228.670 g/mol
InChI Key	LLWADFLAOKUBDR-UHFFFAOYSA-N
LogP	3.30
Synonyms	MCPB 4-(4-Chloro-2-methylphenoxy)butanoic acid Butanoic acid, 4-(4-chloro-2-methylphenoxy)- 94-81-5 4-(2-Methyl-4-chlorophenoxy)butyric acid 4-06-00-01996 BRN 2215202 Caswell No. 558 gamma-(4-Chloro-2-methylphenoxy)butyric acid 4-(4-Chloro-2-methylphenoxy)butyric acid (4-Chloro-o-tolyloxy)butyric acid 4-((4-Chloro-o-tolyl)oxy)butyric acid EINECS 202-365-3 EPA Pesticide Chemical Code 019201 MCP-butyric 2-Methyl-4-chlorophenoxybutyric acid NSC 102796 Thitrol Trifolex gamma-MCPB 4-(2-Methyl-4-chlorphenoxy)-buttersaeure 4-(4-Chlor-2-methylphenoxy)-buttersaeure Kyselina 4-(4-chlor-2-methylfenoxy)maselna UNII-OA1Z4N1842 4-(4-chloro-o-tolyloxy)butyric acid

Applications:

MCPB Analysis Using Obelisc and Primesep Analytical HPLC Columns

MCPB (4-(4-Chloro-methylphenoxy)butanoic acid) is an herbicide used on post-emergence broad-leaf weeds. Its acute toxicity is low to moderate, and has been show to damage liver and kidney tissue. Obelisc R and Primesep 100 were both used to separate MCPB. Primesep 100 is a reverse-phase column with embedded acidic ion-pairing groups while Obelisc R is a mixed-mode column with separates using ionic groups and a long hydrophobic chain. The European Union Reference Laboratory (EURL) included MCPB in an analysis of acidic pesticides using single residue methods. Method is LC/MS compatible and useful for many pesticides.

MCPB