Difurfuryldisulfide

Difurfuryldisulfide Basic information

Product Name:	Difurfuryldisulfide
Synonyms:	bis(2-furylmethyl) disulphide;bis(2-furylmethyl)disulfide;bis-(Furylmethyl) disulfide;bis-Furfuryl disulfide;di-2-furfuryl disulfide;Furan, 2,2'-[dithiobis(methylene)]bis-;2,2-(DITHIODIMETHYLENE) DIFURAN;2,2'-(DITHIODIMETHYLENE)DIFURAN
CAS:	4437-20-1
MF:	C10H10O2S2
MW:	226.32
EINECS:	224-649-6
Product Categories:	Building Blocks;C8 to C11;Chemical Synthesis;Furans;Heterocyclic Building Blocks;Sulfides flavors;Furan&Benzofuran;API intermediates;sulfide Flavor
Mol File:	4437-20-1.mol

Difurfuryldisulfide Chemical Properties

Melting point	10-11 °C (lit.)
Boiling point	112-115 °C/0.5 mmHg (lit.)
density	1.233 g/mL at 25 °C (lit.)
FEMA	3146 \| 2,2'-(DITHIODIMETHYLENE)-DIFURAN
refractive index	n20/D 1.585(lit.)
Fp	>230 °F
storage temp.	Keep in dark place,Inert atmosphere,2-8°C
form	clear liquid
color	Colorless to Yellow
Specific Gravity	1.235 (20/4℃)
Odor	at 0.01 % in propylene glycol. sulfury coffee roasted chicken meaty onion cabbage
Odor Type	coffee
JECFA Number	1081
LogP	4.03
CAS DataBase Reference	4437-20-1(CAS DataBase Reference)
NIST Chemistry Reference	Bis(2-furfuryl)disulfide(4437-20-1)
EPA Substance Registry System	Furan, 2,2'-[dithiobis(methylene)]bis- (4437-20-1)

Safety Information

Safety Statements	24/25
RIDADR	UN 3334
WGK Germany	3
HS Code	29321900

MSDS Information

Provider	Language
2,2'-(Dithiodimethylene)-difuran	English
SigmaAldrich	English
ACROS	English

Difurfuryldisulfide Usage And Synthesis

Chemical Properties	Colorless to light yellow liqui
Occurrence	Reported found in beef (boiled, cooked) and coffee
Uses	Furfuryl disulfide has been used in the preparation of poly(disulfido-imide)s by Diels-Alder (DA) reaction with the various bismaleimides.
Definition	ChEBI: Bis(2-furanylmethyl) disulfide is a heteroarene.
Taste threshold values	Taste characteristics at 20 ppm: roasted, sulfuraceous, alliaceous, green and meaty.
General Description	Difurfuryl disulfide is a sulfur-containing volatile compound mainly found in roasted coffee. It is also the main degradation product of furfuryl mercaptan under Fenton-type reaction conditions.

Difurfuryldisulfide Preparation Products And Raw materials

Raw materials	Hydrogen Sulfide-->Sodium hydrosulfide-->3,3'-dithiobis(propionohydrazide)-->BIS(4-METHOXYPHENYL) DISULPHIDE-->1-Propanesulfonyl chloride-->4-METHOXYBENZENETHIOL-->Phenylacetylene-->4-Hydroxybenzaldehyde-->Furfural-->2,3-Pentanedione
Preparation Products	Difurfuryl sulfide

Acetoin Difurfuryl sulfide 3-(Methylthio)propionaldehyde Dibromomethane Dimethyl disulfide Furfuryl propionate ester Diallyldisulfide Piperonyl butoxide 2-Methylfuran GGKPDLRPCHPPCHYIPRPKPR DL-Dithiothreitol Methylene dithiocyanate Furan-2-yl-methanethiol Methyl furfuryl disulfide Selenium sulfide Difurfuryldisulfide Diethyl disulfide

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