Melting point :-108°C
Boiling point :66 °C
Density :0.887 g/mL at 20 °C
vapor density :2.5 (vs air)
vapor pressure :<0.01 mm Hg ( 25 °C)
refractive index :n20/D 1.465
Flash point :>230 °F
storage temp. :Store at +5°C to +30°C.
solubility :water: soluble
form :Liquid
Specific Gravity :0.89
color :<10(APHA)
Odor :Ethereal, detectable at 2 to 50 ppm
PH Range :7
Relative polarity :0.207
PH :7-8 (200g/l, H2O, 20℃)
explosive limit :1.5-12.4%(V)
Water Solubility :miscible
FreezingPoint :-108℃
Sensitive :Air Sensitive & Hygroscopic
λmax :λ: 245 nm Amax: ≤0.26
λ: 275 nm Amax: ≤0.046
λ: 315 μm Amax: ≤0.0044 Merck :14,9211
BRN :102391
Henry's Law Constant :1.54 (static headspace-GC, Welke et al., 1998)
Exposure limits :TLV-TWA 200 ppm (590 mg/m³) (ACGIH, MSHA, and OSHA); STEL 250 ppm (ACGIH); IDLH 20,000 ppm (NIOSH).
Dielectric constant :11.6（-70℃）
Stability :Stable. Incompatible with halogens, strong oxidizing agents, strong reducing agents, strong bases, oxygen. May generate explosive peroxides in storage if in contact with air. Highly flammable. Store at room temperature under nitrogen. Hazardous polymerisation may occur. Light sensitive. May contain 2,6-di-tertbutyl-4-methylphenol (BHT) as a s
InChIKey :WYURNTSHIVDZCO-UHFFFAOYSA-N
LogP :0.45 at 25℃
CAS DataBase Reference :109-99-9(CAS DataBase Reference)
IARC :2B (Vol. 119) 2019
NIST Chemistry Reference :Furan, tetrahydro-(109-99-9)
EPA Substance Registry System :Tetrahydrofuran (109-99-9)
Absorption :≤0.0044 at 315nm
≤0.005 at 350nm
≤0.005 at 400nm
≤0.02 at 300nm
≤0.046 at 275nm
≤0.18 at 250nm
≤0.26 at 245nm
≤1.0 at 212nm

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 H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501 H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
Precautionary statements:	P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P308+P313 IF exposed or concerned: Get medical advice/attention.