Difurfuryldisulfide
- Product Name
- Difurfuryldisulfide
- CAS No.
- 4437-20-1
- Chemical Name
- Difurfuryldisulfide
- Synonyms
- DIFURFURYL DISULFIDE;FURFURYL DISULFIDE;DifurfuryL;DIFURFURYL DISULPHIDE;1,2-Bis(furan-2-ylmethyl)disulfane;2-(Furan-2-ylmethyldisulfanylmethyl)furan;FEMA 3146;Difuryl disulfide;Difurfuryldisulfid;DIFURFURYL DISUFIDE
- CBNumber
- CB9771367
- Molecular Formula
- C10H10O2S2
- Formula Weight
- 226.32
- MOL File
- 4437-20-1.mol
Difurfuryldisulfide Property
- Melting point:
- 10-11 °C (lit.)
- Boiling point:
- 112-115 °C/0.5 mmHg (lit.)
- Density
- 1.233 g/mL at 25 °C (lit.)
- refractive index
- n20/D 1.585(lit.)
- FEMA
- 3146 | 2,2'-(DITHIODIMETHYLENE)-DIFURAN
- Flash point:
- >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
- biological source
- synthetic
- 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
- Safety Statements
- 24/25
- RIDADR
- UN 3334
- WGK Germany
- 3
- HS Code
- 29321900
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P330Rinse mouth.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- W314609
- Product name
- 2,2′-(Dithiodimethylene)difuran
- Purity
- ≥95%, FG
- Packaging
- 1 unit
- Price
- $53.48
- Updated
- 2025/07/31
- Product number
- W314609
- Product name
- 2,2′-(Dithiodimethylene)difuran
- Purity
- ≥95%, FG
- Packaging
- 1 unit
- Price
- $53.48
- Updated
- 2025/07/31
- Product number
- W314609
- Product name
- 2,2′-(Dithiodimethylene)difuran
- Purity
- ≥95%, FG
- Packaging
- 100g
- Price
- $143.45
- Updated
- 2025/07/31
- Product number
- W314609
- Product name
- 2,2′-(Dithiodimethylene)difuran
- Purity
- ≥95%, FG
- Packaging
- 250g
- Price
- $291
- Updated
- 2025/07/31
- Product number
- W314609
- Product name
- 2,2′-(Dithiodimethylene)difuran
- Purity
- ≥95%, FG
- Packaging
- 1kg
- Price
- $672
- Updated
- 2025/07/31
Difurfuryldisulfide Chemical Properties,Usage,Production
Chemical Properties
Pale yellowish oily liquid. Slightly soluble in water, soluble in alcohol and oils.
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.
Preparation
Difurfuryl disulfide is produced from Furfural and Hydrogen sulfide gas.
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.
Synthesis
98-02-2
4437-20-1
The general procedure for the synthesis of difurfuryldisulfide from furfuryl(base)thiols was as follows: a non-homogeneous mixture of 4-chlorobenzenethiol (0.145 g, 1 mmol) with KBrO3 (0.167 g, 1 mmol), (NH4)6Mo7O24-4H2O (0.124 g, 10 mmol), and CH3CN/H2O (7:3, 5 mL) was mixed. The reaction mixture was stirred in a fume hood for 4 min under ambient atmosphere and at room temperature. The reaction progress was monitored by thin layer chromatography (TLC) using EtOAc/n-C6H14 (1:13) as eluent. Upon completion of the reaction, CH2Cl2 (20 mL) was added and the reaction mixture was filtered. The filtrate was washed sequentially with 5% NaOH solution and water and then dried with anhydrous MgSO4. Finally, the difurfuryldisulfide product of sufficient purity was obtained by evaporating the solvent.
References
[1] Bulletin of the Chemical Society of Japan, 1996, vol. 69, # 3, p. 685 - 691
[2] Synthesis, 2007, # 21, p. 3286 - 3289
[3] Journal of Chemical Research - Part S, 2002, # 11, p. 564 - 566
[4] Synthetic Communications, 2011, vol. 41, # 2, p. 170 - 176
[5] Journal of Organic Chemistry, 1995, vol. 60, # 11, p. 3266 - 3267
Difurfuryldisulfide Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Difurfuryldisulfide manufacturers
- Product
- Difurfuryldisulfide 4437-20-1
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 98.0%
- Supply Ability
- 10000KGS
- Release date
- 2025-06-26
- Product
- Difurfuryldisulfide 4437-20-1
- Price
- US $20.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 1000mt
- Release date
- 2024-04-19
- Product
- 2,2-Dithiobis(methylene)bisfuran 4437-20-1
- Price
- US $70.00/kg
- Min. Order
- 1kg
- Purity
- 99
- Supply Ability
- 5000
- Release date
- 2024-05-27