Identification Chemical Properties Safety Data Raw materials And Preparation Products Hazard Information Material Safety Data Sheet(MSDS) Questions And Answer Spectrum Detail Well-known Reagent Company Product Information Supplier Related Products


Name Thiophene
CAS 110-02-1
EINECS(EC#) 203-729-4
Molecular Formula C4H4S
MDL Number MFCD00005413
Molecular Weight 84.14
MOL File 110-02-1.mol

Chemical Properties

Appearance colourless to pale yellow liquid
Melting point  -38 °C (lit.)
Boiling point  84 °C (lit.)
density  1.051 g/mL at 25 °C(lit.)
vapor density  2.9 (vs air)
vapor pressure  40 mm Hg ( 12.5 °C)
refractive index  n20/D 1.529(lit.)
Fp  -9 °C
storage temp.  Flammables area
solubility  Miscible with carbon tetrachloride, heptane, pyrimidine, dioxane, toluene, and many organic solvents (quoted, Keith and Walters, 1992)
form  powder
color  Clear
Specific Gravity 1.06
Odor at 0.10 % in propylene glycol. alliaceous garlic
Stability: Stable. Highly flammable. Incompatible with strong oxidizing agents, nitrates.
explosive limit 1.5-12.5%(V)
Odor Threshold 0.00056ppm
Odor Type sulfurous
Water Solubility  INSOLUBLE
Detection Methods GC,NMR
Merck  14,9353
BRN  103222
Henry's Law Constant 2.33 and 2.70 in distilled water and seawater, respectively (Przyjazny et al., 1983)
Dielectric constant 9.3(20℃)
LogP 1.81-1.86 at pH10
CAS DataBase Reference 110-02-1(CAS DataBase Reference)
NIST Chemistry Reference Thiophene(110-02-1)
EPA Substance Registry System 110-02-1(EPA Substance)

Safety Data

Hazard Codes  F,Xn,Xi,T
Risk Statements 
R45:May cause cancer.
R11:Highly Flammable.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R41:Risk of serious damage to eyes.
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R36:Irritating to the eyes.
R20/22:Harmful by inhalation and if swallowed .
R37/38:Irritating to respiratory system and skin .
R22:Harmful if swallowed.
Safety Statements 
S53:Avoid exposure-obtain special instruction before use .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S39:Wear eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S16:Keep away from sources of ignition-No smoking .
S36:Wear suitable protective clothing .
RIDADR  UN 2414 3/PG 2
WGK Germany  3
RTECS  XM7350000
Autoignition Temperature 743 °F
Hazard Note  Irritant/Highly Flammable
HazardClass  3
PackingGroup  II
HS Code  29349990
Safety Profile
Poison by ingestion and intraperitoneal routes. Mildly toxic by inhalation and subcutaneous routes. A very dangerous fire hazard when exposed to heat or flame. Explosive reaction with N-nitrosoacetanilide. Violent or explosive reaction with nitric acid. Incompatible with oxidizing materials. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits highly toxic fumes of SOx.
Hazardous Substances Data 110-02-1(Hazardous Substances Data)
LD50 orally in Rabbit: 1400 mg/kg

Hazard Information

Material Safety Data Sheet(MSDS)

Questions And Answer

Well-known Reagent Company Product Information