2-(4-Chlorophenoxy)isobutyric acid, commonly abbreviated PCIB, is an aryloxyisobutyric acid bearing a para-chlorophenoxy group and a gem-dimethyl centre alpha to the carboxyl function. It is best known in plant science as an auxin antagonist and is widely used to probe auxin signalling in physiology and tissue culture experiments. In synthetic work it also serves as a building block toward esters, amides, and other aryloxyisobutyrate derivatives of medicinal chemistry interest. TCI supplies this solid in a 25 g pack for laboratory research use; store it tightly closed in a cool, dry place and handle it with standard protective equipment.
TCI brochures (PDF)
- Synthetic Auxin and Selective Binding to Modified Receptor 2025-05-26 · p. 2
- Plant Hormones 2025-01-30 · p. 1
- Agrochemical Ingredients for Research and Experimental Use 2026-01-08 · p. 7
- Plant Research Reagents 2026-02-24 · p. 13
- Pharmaceutical Ingredients for Research and Experimental Use 2026-03-09 · p. 22
- Reagents for Biological Research 2025-03-11 · p. 55
Related TCI products
- TCI D6084 1928-38-7 Methyl (2,4-Dichlorophenoxy)acetate
- TCI C3880 3307-39-9 2-(4-Chlorophenoxy)propanoic Acid
- TCI C1094 101-10-0 2-(3-Chlorophenoxy)propionic Acid
- TCI T1063 575-89-3 2,4,6-Trichlorophenoxyacetic Acid
- TCI D0396 94-75-7 2,4-Dichlorophenoxyacetic Acid
- TCI C0250 122-88-3 4-Chlorophenoxyacetic Acid
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Product Categories
- Biochemicals and ReagentsPharmaceutical Research Reagents (for Experimental Use)Antilipemic Ingredients (for Research and Experimental Use)
- Molecular BiologyPlant BiotechnologyPlant Tissue Culture
- Pharmaceutical Development and Drug Discovery ResearchPharmaceutical Research Reagents (for Experimental Use)Antilipemic Ingredients (for Research and Experimental Use)








