send us an inquiry
LC5734 Tetrahydrothiophene
for synthesis


Order number Packaging Quantity Price €
AC32734 Glass bottle 5 ml 11.25
AC32734 Glass bottle 250 ml 13.77


Product information
Synonyms Tetramethylene sulfide, THT
Hill Formula C4H8S
HS Code 2934 99 90
EC number 203-728-9
Molar mass 88.16 g/mol
EC index number 613-087-00-0
CAS number 110-01-0


Chemical and physical data
Ignition temperature 202 °C
Solubility (20 °C) insoluble
Melting point -96 °C
Molar mass 88.16 g/mol
Density 1.00 g/cm3 (20 °C)
pH value 7 (H2O, 20 °C)
Boiling point 121 °C (1013 hPa)
Vapor pressure 19 hPa (20 °C)
Explosion limit 1.1 – 12.1 %(V)
Flash point 19 °C
Refractive index 1.504 (20 °C, 589 nm)


Safety information according to GHS
Hazard Statement(s) H225: Highly flammable liquid and vapour.
H302 + H312 + H332: Harmful if swallowed, in contact with skin or if inhaled.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H412: Harmful to aquatic life with long lasting effects.
Precautionary Statement(s) P210: Keep away from heat/sparks/open flames/hot surfaces. – No smoking.
P260: Do not breathe dust/ fume/ gas/ mist/ vapours/ spray.
P273: Avoid release to the environment.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P403 + P235: Store in a well-ventilated place. Keep cool.
Signal Word Danger
Hazard Pictogram(s)
RTECS XN0370000
Storage class 3 Flammable Liquids
WGK WGK 2 water endangering
Disposal 6
Sulfides and sulfites as well as other reducing substances, inorganic cyanides and isonitriles: Stir into sodium hypochlorite solution (Cat. No. 105614) and, if necessary, leave to react for several days. Caution: some substances may show a violent reaction! Draw off any toxic or flammable gases that may be formed. Excess oxidant should be neutralized with sodium thiosulfate (Cat. No. 106513). Container D or E.


Safety information
R Phrase R 11-20/21/22-36/38-52/53
Highly flammable.Harmful by inhalation, in contact with skin and if swallowed.Irritating to eyes and skin.Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S Phrase S 16-23-36/37-61
Keep away from sources of ignition – No smoking.Do not breathe spray, vapour.Wear suitable protective clothing and gloves.Avoid release to the environment. Refer to special instructions/ Safety data sheets.
Categories of danger highly flammable, harmful, irritant, dangerous for the environment
Hazard Symbol Flammable


Transport information
Declaration (transport by sea) IMDG-Code UN 2412 TETRAHYDROTHIOPHENE, 3, II
Declaration (transport by air) IATA-DGR UN 2412 TETRAHYDROTHIOPHENE, 3, II


Toxicological data
LD 50 oral LD50 rat 1850 mg/kg
LD 50 dermal LD50 rabbit > 2000 mg/kg


Assay (GC, area%) ≥ 98 %
Density (d 20 °C/ 4 °C) 0.997 – 0.998
Identity (IR) passes test



R Phrase