3-Hydroxypropionic acid

3-Hydroxypropionic acid^[1]

Names
Preferred IUPAC name 3-Hydroxypropanoic acid
Other names 3-Hydroxypropionic acid Hydracrylic acid Ethylene lactic acid
Identifiers
CAS Number	503-66-2 Y
3D model (JSmol)	Interactive image
3DMet	B00221
Beilstein Reference	773806
ChEBI	CHEBI:33404 Y
ChEMBL	ChEMBL1205969
ChemSpider	61460 Y
DrugBank	DB03688 Y
ECHA InfoCard	100.007.250
EC Number	207-974-8
KEGG	C01013 Y
PubChem CID	68152
UNII	C4ZF6XLD2X
CompTox Dashboard (EPA)	DTXSID50198305
InChI InChI=1S/C3H6O3/c4-2-1-3(5)6/h4H,1-2H2,(H,5,6) Y Key: ALRHLSYJTWAHJZ-UHFFFAOYSA-N Y InChI=1/C3H6O3/c4-2-1-3(5)6/h4H,1-2H2,(H,5,6) Key: ALRHLSYJTWAHJZ-UHFFFAOYAU
SMILES O=C(O)CCO
Properties
Chemical formula	C3H6O3
Molar mass	90.08 g/mol
Melting point	<25 °C 143 °C (sodium salt)
Boiling point	Decomposes
Solubility in water	Very soluble
Acidity (pKa)	4.87[2]
Related compounds
Related carboxylic acids	acetic acid glycolic acid propionic acid lactic acid malonic acid butyric acid hydroxybutyric acid
Related compounds	1-propanol 2-propanol propionaldehyde acrolein
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

3-Hydroxypropionic acid is a carboxylic acid, specifically a beta hydroxy acid. It is an acidic viscous liquid with a pKa of 4.9.^[2] It is very soluble in water, soluble in ethanol and diethyl ether. Upon distillation, it dehydrates to form acrylic acid, and is occasionally called hydracrylic acid

3-Hydroxypropionic acid is used in the industrial production of various chemicals such as acrylates.