2-Furfurylthio-3-methylpyrazine

Bezeichnung:2-Furfurylthio-3-methylpyrazine

CAS-Nr65530-53-2

Englisch Name:2-Furfurylthio-3-methylpyrazine

CBNumberCB2398958

SummenformelC10H10N2OS

Molgewicht206.26

MOL-Datei65530-53-2.mol

2-Furfurylthio-3-methylpyrazine physikalisch-chemischer Eigenschaften

Dichte	1.210 g/mL at 25 °C
Brechungsindex	n20/D1.600
FEMA	3189 \| 2-METHYL-3-,5 OR 6-(FURFURYLTHIO)PYRAZINE (MIXTURE OF ISOMERS)
Flammpunkt	110 °C
Geruch (Odor)	at 0.10 % in dipropylene glycol. sulfurous nutty roasted coffee cooked meat
Geruchsart	coffee
JECFA Number	1082
InChI	InChI=1S/C10H10N2OS/c1-8-10(12-5-4-11-8)14-7-9-3-2-6-13-9/h2-6H,7H2,1H3
InChIKey	PFRSWMCUERVSAT-UHFFFAOYSA-N
SMILES	C1(SCC2OC=CC=2)=NC=CN=C1C
LogP	1.97
CAS Datenbank	65530-53-2(CAS DataBase Reference)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	41
S-Sätze:	26-39
RIDADR	UN 1993C 3 / PGIII
WGK Germany	3

Gefahreninformationscode (GHS)

2-Furfurylthio-3-methylpyrazine Chemische Eigenschaften,Einsatz,Produktion Methoden

Chemische Eigenschaften
Colorless liquid with aroma like roasted coffee. Boiling point 153 ~ 156 ℃ (1333Pa). Refractive index (n_D²⁰) 1.5970.
Verwenden
GB 2760--1996 stipulates that 2-Furfurylthio-3-methylpyrazine is temporarily allowed to use food spices.
Definition
ChEBI: 2-Methyl-3 or 5 or 6-(furfurylthio)pyrazine (mixture of isomers) is an aryl sulfide.
Research
FFM as a food spice is in accord with GB 2760 -1996 standard. It can be used for soft drinks, cold drinks, baked goods, and seasonings. Therefore, the damage caused by 2-Furfurylthio-3-methylpyrazine (FFM) as a corrosion inhibitor to humans and the ecological environment is very small. In addition, FFM has good solubility in 0.5 mol/L H 2SO. Electrochemical experiment data show that FFM can exhibit a prominent anti-corrosion nature for copper in H 2SO 4 medium in the temperature range of 298 K to 313 K . Potentiodynamic polarization curve results show that the corrosion inhibition efficiency of FFM can be as high as 97.9% at a concentration of 5 mmol/L. The surface morphology test results show that adding 5 mmol/L FFM in H 2SO 4 medium makes the copper sample relatively flat after soaking for 20 hours, and the roughness value is only 7.84 nm. The XPS experimental results show that the S and N atoms in the FFM molecule can form N -Cu and S -Cu bonds on the copper surface to generate chemical adsorption. Besides, the FFM adsorption on the copper/solution surface[1].
Einzelnachweise
[1] Lei Guo . “Eco-friendly food spice 2-Furfurylthio-3-methylpyrazine as an excellent inhibitor for copper corrosion in sulfuric acid medium.” Journal of Molecular Liquids 317 (2020): Article 113915.

2-Furfurylthio-3-methylpyrazine Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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