3-Chloropropanoic acid

3-Chloropropanoic acid
Clinical data
Other names	3-chloropropionic acid, UMB66
ATC code	None;
Identifiers
	IUPAC name 3-chloropropionic acid;
CAS Number	107-94-8 ;
PubChem CID	7899;
ChemSpider	7611;
UNII	R5J180FN9Z;
CompTox Dashboard (EPA)	DTXSID5021546 ;
ECHA InfoCard	100.003.214
Chemical and physical data
Formula	C3H5ClO2
Molar mass	108.52 g·mol−1
3D model (JSmol)	Interactive image;
Melting point	42 °C (108 °F)
Boiling point	204 °C (399 °F) (decomp.)
	SMILES C(CCl)C(=O)O;
	InChI InChI=1S/C3H5ClO2/c4-2-1-3(5)6/h1-2H2,(H,5,6); Key:QEYMMOKECZBKAC-UHFFFAOYSA-N;
	(verify)

3-Chloropropanoic acid (also known as 3-chloropropionic acid or UMB66) is the organic compound with the formula ClCH₂CH₂CO₂H. A white or colorless solid, it is used as a drug and a synthetic intermediate. The compound is produced by the hydrochlorination of acrylic acid. In aqueous solution, it has a pK_a value of 4.08.

This compound is used in scientific research. It is structurally related to GHB and binds to the GHB receptor, but has no affinity for GABA receptors. It is also an active ingredient in some herbicide blends. Overdose may cause unconsciousness or convulsions. It has been demonstrated that the substance can be broken down by both bacteria and fungi as a means of bioremediation.