Melting point :-92 °C
Boiling point :103 °C
Density :0.81 g/mL at 25 °C(lit.)
vapor pressure :36 hPa (20 °C)
FEMA :3098 | VALERALDEHYDE
refractive index :n20/D 1.394(lit.)
Flash point :54 °F
storage temp. :Store at +2°C to +8°C.
solubility :soluble in ethyl alcohol, ethyl ether, and other common organic solvents.
color :Colorless to Light yellow
Odor :at 1.00 % in dipropylene glycol. fermented bready fruity nutty berry
Odor Type :fermented
Odor Threshold :0.00041ppm
explosive limit :1.7-6.8%(V)
Water Solubility :14 g/L (20 ºC)
Sensitive :Air Sensitive
Merck :14,9902
JECFA Number :89
BRN :1616304
Exposure limits :TLV-TWA 175 mg/m³ (50 ppm) (ACGIH and OSHA).
Dielectric constant :13.9（Ambient）
Stability :Stable. Highly flammable. Incompatible with strong oxidizing agents, acids, strong alkalies, strong reducing agents.
LogP :1.5 at 25℃ and pH7
CAS DataBase Reference :110-62-3(CAS DataBase Reference)
NIST Chemistry Reference :Pentanal(110-62-3)
EPA Substance Registry System :Pentanal (110-62-3)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312 H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
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.