4-(4-Chlorophenoxy)butanoic acid

4-(4-Chlorophenoxy)butanoic acid

Skeletal formula of 4-(4-chlorophenoxy)butanoic acid
Names
Preferred IUPAC name 4-(4-chlorophenoxy)butanoic acid
Other names 4-CPB
Identifiers
CAS Number	3547-07-7
3D model (JSmol)	Interactive image
ChemSpider	18011
EC Number	109-978-4
PubChem CID	19077
CompTox Dashboard (EPA)	DTXSID70188980
InChI InChI=1S/C10H11ClO3/c11-8-3-5-9(6-4-8)14-7-1-2-10(12)13/h3-6H,1-2,7H2,(H,12,13) Key: SIYAHZSHQIPQLY-UHFFFAOYSA-N
SMILES C1=CC(=CC=C1OCCCC(=O)O)Cl
Properties
Chemical formula	C10H11ClO3
Molar mass	214.65 g·mol^−1
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H318
Precautionary statements	P264, P264+P265, P270, P280, P301+P317, P305+P354+P338, P317, P330, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

4-(4-Chlorophenoxy)butanoic acid is an herbicide. Its formula is C₁₀H₁₁ClO₃. It is an approved substance under the name 4-CPB by the Weed Science Society of America.[1]

Uses

4-(4-Chlorophenoxy)butanoic acid has been used as a starting material to produce derivatives of benzoxepin, several of which are the subject of research due to their apparent sedative-hypnotic effects.[2]

References

1. "4-CPB". Compendium of Pesticide Common Names. British Crop Production Council. Retrieved January 30, 2025.
2. Abdel Gawad NM, Hassan GS, Georgey HH, El-Zorba HY (June 1, 2012). "Benzoxepin derivatives: design, synthesis, and pharmacological evaluation with sedative–hypnotic effect". Medicinal Chemistry Research. 21 (6): 747–759. doi:10.1007/s00044-011-9579-3. ISSN 1554-8120.