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Skeletal formula of 2,4-dithiapentane
Ball-and-stick model
CAS number 1618-26-4 N
PubChem 15380
ChemSpider 14639 YesY
Jmol-3D images Image 1
Image 2
Molecular formula C3H8S2
Molar mass 108.23 g mol−1
Appearance Liquid
Density 1.059 g/cm³, liquid
Melting point −20.5 °C (−4.9 °F; 252.7 K)
Boiling point 147 °C (297 °F; 420 K)
Solubility in water Immiscible
Viscosity 0.00113 Pa s
MSDS External MSDS
R-phrases R10
S-phrases S16
NFPA 704
Flammability code 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g., diesel fuel Health code 1: Exposure would cause irritation but only minor residual injury. E.g., turpentine Reactivity (yellow): no hazard code Special hazards (white): no codeNFPA 704 four-colored diamond
Flash point 43.89 °C (111.00 °F; 317.04 K)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

2,4-Dithiapentane is an organic compound known to be an important component of truffle flavor. It is used as a primary aromatic ingredient in truffle oil when combined in an olive oil base.[1]

2,4-Dithiapentane is the dimethylthioacetal of formaldehyde and is prepared by the acid catalyzed addition of methyl mercaptan to formaldehyde.

2 CH3SH + H2C=O + HCl(aq) → CH3SCH2SCH3 + H2O

See also[edit]

Notes and references[edit]

  1. ^ Patterson, Daniel (2007-05-16). "Hocus-Pocus, and a Beaker of Truffles". The New York Times. Retrieved 2008-02-13.