Melting point :-117 °C
Boiling point :131-132 °C
Density :0.809 g/mL at 25 °C(lit.)
vapor density :3 (vs air)
vapor pressure :2 mm Hg ( 20 °C)
FEMA :2057 | ISOAMYL ALCOHOL
refractive index :n20/D 1.407
Flash point :109.4 °F
storage temp. :room temp
solubility :25g/l
form :Liquid
pka :>14 (Schwarzenbach et al., 1993)
Specific Gravity :0.813 (15/4℃)
color :<20(APHA)
PH Range :5.6 at 25 g/l at 20 °C
Odor :Mild odor; alcoholic, non-residual.
PH :7 (25g/l, H2O, 20℃)
explosive limit :1.2-9%, 100°F
Odor Threshold :0.0017ppm
Odor Type :fermented
Water Solubility :25 g/L (20 ºC)
λmax :λ: 260 nm Amax: 0.06
λ: 280 nm Amax: 0.06 Merck :14,5195
JECFA Number :52
BRN :1718835
Henry's Law Constant :33.1 at 37 °C (Bylaite et al., 2004)
Exposure limits :NIOSH REL: TWA 100 ppm (360 mg/m³), IDLH 500 ppm; OSHA PEL: TWA 100 ppm; ACGIH TLV: TWA 100 ppm, STEL 125 ppm (adopted).
Dielectric constant :15.3（23℃）
Stability :Stable. Flammable. Incompatible with strong oxidizing agents, strong acids, acid chlorides, acid anhydrides.
LogP :1.35 at 20℃
CAS DataBase Reference :123-51-3(CAS DataBase Reference)
NIST Chemistry Reference :1-Butanol, 3-methyl-(123-51-3)
EPA Substance Registry System :3-Methyl-1-butanol (123-51-3)

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 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310 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.