Melting point :-110 °C
Boiling point :125-127 °C(lit.)
Density :1.016 g/mL at 25 °C(lit.)
refractive index :n20/D 1.42(lit.)
Flash point :91 °F
storage temp. :Flammables area
solubility :Chloroform (Sparingly), Ethyl Acetate (Slightly)
form :Liquid
color :Clear colorless to light yellow
Water Solubility :decomposes
Sensitive :Moisture Sensitive
BRN :506293
Stability :Moisture Sensitive
CAS DataBase Reference :638-29-9(CAS DataBase Reference)
NIST Chemistry Reference :Pentanoyl chloride(638-29-9)
EPA Substance Registry System :Pentanoyl chloride (638-29-9)

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 H290 May be corrosive to metals Corrosive to Metals Category 1 Warning P234, P390, P404 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 H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.