2,4-dithiapentane

Structural formula
General
Surname	2,4-dithiapentane
other names	Dimethylthiomethane Formaldehyde dimethyl mercaptal Bis (methylthio) methane
Molecular formula	CH 3 SCH 2 SCH 3
Brief description	colorless liquid with a mustard-like odor
External identifiers / databases
CAS number 1618-26-4 EC number 216-577-9 ECHA InfoCard 100.015.071 PubChem 15380 Wikidata Q2567203
properties
Molar mass	108.23 g mol −1
Physical state	liquid
density	1.059 g cm −3 (25 ° C)
boiling point	147 ° C
Vapor pressure	8 hPa (20 ° C)
solubility	soluble in ethanol and oils slightly soluble in water
Refractive index	1.53 (20 ° C)
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 226-315-319-335 P: 261-305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

2,4-Dithiapentane is an inorganic chemical compound belonging to the pentane group .

Occurrence

2,4-Dithiapentane occurs naturally in mushrooms (such as truffles ), lobster, and camembert.

Extraction and presentation

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

${\displaystyle \mathrm {2\ CH_{3}SH+H_{2}C=O+HCl\longrightarrow CH_{3}SCH_{2}SCH_{3}+H_{2}O} }$

properties

2,4-Dithiapentane is a colorless liquid.

use

2,4-Dithiapentane is used as an ingredient in artificial truffle flavors.

Individual evidence

1. ↑ ^{a b c d e f g h i j} data sheet bis (methylthio) methane, ≥99%, FG from Sigma-Aldrich , accessed on September 6, 2015 ( PDF ).
2. ↑ ^{a b c} George A. Burdock: Fenaroli's Handbook of Flavor Ingredients, Sixth Edition . CRC Press, 2009, ISBN 978-1-4200-9086-4 , pp. 2039 ( limited preview in Google Book Search).
3. ↑ H.-D. Belitz, W. Grosch: Textbook of food chemistry . Springer-Verlag, 2013, ISBN 978-3-662-08306-2 , pp. 405 ( limited preview in Google Book search).
4. ↑ Jeff Potter: Cooking for Geeks . O'Reilly Germany, 2011, ISBN 978-3-86899-126-0 , pp. 96 ( limited preview in Google Book search).