Melting point :-70 °C
Boiling point :142 °C(lit.)
Density :1.074 g/mL at 25 °C(lit.)
vapor pressure :2.42 psi ( 20 °C)
refractive index :n20/D 1.412(lit.)
Flash point :77 °F
storage temp. :2-8°C
form :Liquid
color :Clear
Water Solubility :DECOMPOSES
Sensitive :Moisture Sensitive
BRN :605635
LogP :1.895 (est)
CAS DataBase Reference :592-34-7(CAS DataBase Reference)
NIST Chemistry Reference :Carbonochloridic acid, butyl ester(592-34-7)
EPA Substance Registry System :n-Butyl chloroformate (592-34-7)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H226 Flammable liquid and vapour Flammable liquids Category 3 Warning 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 H331 Toxic if inhaled Acute toxicity,inhalation Category 3 Danger P261, P271, P304+P340, P311, P321,P403+P233, P405, P501
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P280 Wear protective gloves/protective clothing/eye protection/face protection. 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.