Melting point :-4 °C (lit.)
Boiling point :99-103 °C/10 mmHg (lit.)
Density :1.567 g/mL at 25 °C (lit.)
refractive index :n20/D 1.474(lit.)
Flash point :>230 °F
storage temp. :room temp
solubility :water: soluble15 part
form :Liquid
pka :pK1: 2.939 (35°C)
color :Clear yellow
Water Solubility :66 g/L (20 ºC)
Merck :14,1413
BRN :1720950
Dielectric constant :7.2（20℃）
CAS DataBase Reference :80-58-0(CAS DataBase Reference)
NIST Chemistry Reference :2-Bromobutyric acid(80-58-0)
EPA Substance Registry System :2-Bromobutyric acid (80-58-0)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:	P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.