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LC939 2-Butanethiol
for synthesis


Order number Packaging Quantity Price €
AC27939 Glass bottle 5 ml 10.89
AC27939 Glass bottle 250 ml 28.58


Product information
Synonyms sec-Butyl mercaptan, 1-Methyl-1-propanthiol
Hill Formula C4H10S
Chemical formula CH3CH2CH(SH)CH3
HS Code 2930 90 99
EC number 208-165-2
Molar mass 90.18 g/mol
CAS number 513-53-1


Chemical and physical data
Solubility 1.32 g/l (20 °C)
Melting point -165 °C
Molar mass 90.18 g/mol
Density 0.83 g/cm3 (20 °C)
Boiling point 82 – 88 °C
Vapor pressure 108 hPa (25 °C)
Explosion limit 1.7 – 9.6 %(V)
Flash point -23 °C


Safety information
R Phrase R 11
Highly flammable.
S Phrase S 9-16
Keep container in a well-ventilated place.Keep away from sources of ignition – No smoking.
Categories of danger highly flammable
Hazard Symbol Flammable
Storage class 3 Flammable Liquids
WGK WGK 3 highly 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.


Transport information
Declaration (transport by sea) IMDG-Code UN 2347 BUTYL MERCAPTANS, 3, II
Declaration (transport by air) IATA-DGR UN 2347 BUTYL MERCAPTAN, 3, II


Toxicological data
LD 50 oral LD50 rat 5176 mg/kg
LD 50 dermal LD50 rabbit > 2000 mg/kg


Assay (GC, area%) ≥ 95 %
Density (d 20 °C/ 4 °C) 0.830 – 0.833
Identity (IR) passes test


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