Melting point :13-14 °C(lit.)
Boiling point :274-275 °C(lit.)
Density :1.09 g/mL at 25 °C(lit.)
refractive index :n20/D 1.4451(lit.)
Flash point :>230 °F
storage temp. :Sealed in dry,Room Temperature
solubility :Chloroform (Slightly), Methanol (Slightly)
form :Off-White Semi-Solid
pka :4.63±0.10(Predicted)
color :Colorless to Red to Green
Water Solubility :Slightly soluble in water, chloroform and methanol.
BRN :385840
InChI :1S/C6H10O3/c1-5(7)3-2-4-6(8)9/h2-4H2,1H3,(H,8,9)
InChIKey :MGTZCLMLSSAXLD-UHFFFAOYSA-N
SMILES :CC(=O)CCCC(O)=O
CAS DataBase Reference :3128-06-1(CAS DataBase Reference)
NIST Chemistry Reference :4-Acetylbutyric acid(3128-06-1)
EPA Substance Registry System :Hexanoic acid, 5-oxo- (3128-06-1)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:	P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P321 Specific treatment (see … on this label). P332+P313 IF SKIN irritation occurs: Get medical advice/attention. P337+P313 IF eye irritation persists: Get medical advice/attention.