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2,5-Dimethylpyrazin

2,5-Dimethyl pyrazine Struktur
123-32-0
CAS-Nr.
123-32-0
Bezeichnung:
2,5-Dimethylpyrazin
Englisch Name:
2,5-Dimethyl pyrazine
Synonyma:
2,5-DIMETHYLPYRAZINE;2,5-Dimethylprazin;Pyrazine,2,5-dimethyl-;2,5-Dimethyl;Structural formula;2,5-Dimethylpiazine;2,5-dimethyl-pyrazin;KETINE;tomfor;GLYCOLINE
CBNumber:
CB0159355
Summenformel:
C6H8N2
Molgewicht:
108.14
MOL-Datei:
123-32-0.mol

2,5-Dimethylpyrazin Eigenschaften

Schmelzpunkt:
15°C
Siedepunkt:
155 °C (lit.)
Dichte
0.99 g/mL at 25 °C (lit.)
FEMA 
3272 | 2,5-DIMETHYLPYRAZINE
Brechungsindex
n20/D 1.502(lit.)
Flammpunkt:
147 °F
storage temp. 
Inert atmosphere,Room Temperature
L?slichkeit
Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)
Aggregatzustand
Liquid
pka
2.21±0.10(Predicted)
Wichte
0.990
Farbe
Clear colorless to pale yellow
PH
7 (H2O)
Geruch (Odor)
at 0.10 % in dipropylene glycol. nutty roasted baked potato
Geruchsart
chocolate
Sensitive 
Hygroscopic
JECFA Number
766
BRN 
107052
Dielectric constant
2.4399999999999999
LogP
0.64
CAS Datenbank
123-32-0(CAS DataBase Reference)
NIST chemische Informationen
Pyrazine, 2,5-dimethyl-(123-32-0)
EPA chemische Informationen
Pyrazine, 2,5-dimethyl- (123-32-0)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xn,Xi
R-S?tze: 22-36/37/38-R22
S-S?tze: 26-36
RIDADR  NA 1993 / PGIII
WGK Germany  3
RTECS-Nr. UQ2800000
Hazard Note  Irritant
TSCA  Yes
HS Code  29339990
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H302 Gesundheitssch?dlich bei Verschlucken. Akute Toxizit?t oral Kategorie 4 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P270, P301+P312, P330, P501
Sicherheit

2,5-Dimethylpyrazin Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R22:Gesundheitssch?dlich beim Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-S?tze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

Chemische Eigenschaften

clear colorless to pale yellow liquid

Occurrence

Reported to be present in bakery products, roasted barley, cocoa products, roasted coffee, dairy products, pork, peanuts, pecans, filberts, popcorn, potato products, rum and whiskey, soy products; a volatile component in roasted filberts and in potato chips; reportedly identified in the fat of cooked beef; also reported found in toasted off-flavors. Also reported in cheeses, butter, boiled eggs, grilled beef, tea, barley, oats, oatmeal, soybeans, heated beans, kohlrabi, shrimp and mushrooms. Also reported found in coffee, potato chips and shrimp

Verwenden

2,5-Dimethyl pyrazine is used for blending food, nuts and beverage flavors.

Application

2,5-Dimethyl pyrazine is held chiefly responsible for the typical flavor of Potato Chips (oil-fried, thin-sliced Potato). It has therefore been manufactured synthetically and is used in the reconditioning of commercial products, such as Potato Chips and the packaging material for same, and also for reconditioning of "instant" coffee.

synthetische

By the interaction of acrolein and ammonia when heated in glycerol in the presence of ammonium salts; by self-condensation of aminoacetone, followed by oxidation with mercury chloride.

Allgemeine Beschreibung

2,5-Dimethylpyrazine is a pyrazine compound that is mainly formed in food products such as cooked rice or roasted peanuts due to the Maillard reaction between sugars and proteins during cooking or roasting process.

Sicherheitsprofil

Moderately toxic by ingestion and intraperitoneal routes. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx

l?uterung methode

Purify it via its picrate (m 150o) which is decomposed with a base (e,g, KOH) and distilled. [Wiggins and Wise J Chem Soc 4780 1956]. [Beilstein 23/5 V 403.]

2,5-Dimethylpyrazin Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


2,5-Dimethylpyrazin Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 555)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Hebei Weibang Biotechnology Co., Ltd
+8615531157085
abby@weibangbio.com China 8810 58
Hebei Mojin Biotechnology Co., Ltd
+86 13288715578 +8613288715578
sales@hbmojin.com China 12835 58
Hebei Yanxi Chemical Co., Ltd.
+8617531190177
peter@yan-xi.com China 5857 58
Shanghai UCHEM Inc.
+862156762820 +86-13564624040
sales@myuchem.com China 7629 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-13131129325
sales1@chuanghaibio.com China 5889 58
Hebei Kingfiner Technology Development Co.Ltd
+86-15532196582 +86-15373005021
lisa@kingfinertech.com China 3010 58
Henan Fengda Chemical Co., Ltd
+86-371-86557731 +86-13613820652
info@fdachem.com China 20284 58
Hebei Zhuanglai Chemical Trading Co.,Ltd
+8613343047651
admin@zlchemi.com China 3002 58
Shandong Deshang Chemical Co., Ltd.
+86-0531-8875-2665 +8613153039501
info@deshangchem.com China 662 58
JINING XINHE CHEMICAL CO., LTD
+8615318402391
sales@xinhepharma.com China 809 58

123-32-0(2,5-Dimethylpyrazin)Verwandte Suche:


  • 2,5-Dimethylpyrazine (contains 2,6-isomer)
  • 2,5-DIMETHYL PYRAZINE, NATURAL
  • 2,5-Dimethylpyrazine,99%
  • 5-diMethyl pyrazine
  • 2,5-DiMethylpyrazine, 99% 25GR
  • 2,5-DiMethylpyrazine, 99% 5GR
  • 2,5-Dimethylpyrazine, Research grade
  • 2,5-Dimethyl pyrazine >=99.0%
  • 2,5-DIMETHYLPYRAZINE FOR SYNTHESIS
  • 2,5-DiMethyl pyrazzine
  • Natural 2,5-DiMethyl pyrazine
  • 2,5- twoMethyl pyrazine
  • 2,5 AND 2,6-DIMETHYL PYRAZINE
  • 2,5-DIMETHYL-1,4-DIAZINE
  • 2,5-DIMETHYLPYRAZINE AND 2,6-DIMETHYLPYRAZINE
  • 2,5(2,6)-DIMETHYLPYRAZINE MIXTURE
  • 2,5-Dimethyl paradiazine
  • 2 5-DIMETHYLPYRAZINE FCC
  • 2,5-Dimethyl-p-diazine
  • dimethylpyrazine,2,5-dimethylpyrazine,2,5-dimethyl-1,4-diazine
  • KETINE
  • GLYCOLINE
  • FEMA 3272
  • FEMA NUMBER 3272
  • FEMA NUMBER 3272 AND 3273
  • 2,5-DIMETHYLPYRAZINE (CONTAINS CA. 5% 2,6-ISOMER) 94+%
  • 2,5-DIMETHYL PYRAZINE FEMA NO.3272
  • 2,5-DIMETHYLPYRAZINE (CONTAINS 2,6-ISOMER) 80+%
  • 2,3,5-TRMETHYLPYRAZINE
  • 2,5-Dimethylpyrazine≥ 99% (GC)
  • tomfor
  • 2,5(or6)-Dimethyl pyrazine
  • 2,5-Dimethylpyrazine 98+%
  • Glipizide Impurity 17
  • 2,5-Dimethylpyrazine >
  • 2,5-Dimethylpyrazine, Flavour grade
  • 2,5-Dimethylpyrazine (contains 2,6-isomer)>
  • 2,5-Dimethyl pyrazine USP/EP/BP
  • 2,5-dimethyl pyrazine and 2,6-dimethyl pyrazine mixture
  • 2, 5-Dimethyl Pyrazine CAS 123-32-0 with Best Price
  • 2.5-Dimethyl pryazine
  • 2,5-Dimethylprazin
  • 2,5-dimethyl-pyrazin
  • 2,5-DIMETHYLPYRAZINE
  • 2,5-Dimethylpiazine
  • 2,5-Dimethyl
  • Pyrazine,2,5-dimethyl-
  • Structural formula
  • Clomiphene Citrate 50-41-9
  • 2,5-Dimethylpyrazine, Flavour grade in isooctane
  • 2,5-Dimethylpyrazine, Research grade in isooctane
  • Glipizide Impurity 42
  • 123-32-0
  • 123-23-0
  • 3123-32-0
  • -NCCH3CHNCCH3CH
  • Heterocyclic Building Blocks
  • Pyrazines
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