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W327204

Sigma-Aldrich

2,5-二甲基吡嗪

≥98%, FG

别名:

Ketine

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About This Item

经验公式（希尔记法）:
C6H8N2
CAS号:
123-32-0
分子量:
108.14
FEMA號碼:
3272
Beilstein:
107052
EC號碼:
204-618-3
歐洲委員會號碼:
2210
MDL號碼:
MFCD00006147
分類程式碼代碼:
12164502
PubChem物質ID:
24901599
Flavis號碼:
14.020
NACRES:
NA.21
感官的:
cocoa; nutty; woody; earthy
等級:
FG
Fragrance grade
Halal
Kosher
生物源:
synthetic
agency:
follows IFRA guidelines
食物過敏原:
no known allergens

生物源

synthetic

品質等級

400

等級

FG
Fragrance grade
Halal
Kosher

agency

follows IFRA guidelines

法律遵循

EU Regulation 1223/2009
EU Regulation 1334/2008 & 178/2002

化驗

≥98%

折射率

n20/D 1.502 (lit.)

bp

155 °C (lit.)

密度

0.99 g/mL at 25 °C (lit.)

應用

flavors and fragrances

文件

see Safety & Documentation for available documents

食物過敏原

no known allergens

香料過敏原

no known allergens

感官的

cocoa; nutty; woody; earthy

SMILES 字串

Cc1cnc(C)cn1

InChI

1S/C6H8N2/c1-5-3-8-6(2)4-7-5/h3-4H,1-2H3

InChI 密鑰

LCZUOKDVTBMCMX-UHFFFAOYSA-N

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相关类别

一般說明

2,5-二甲基吡嗪是一种吡嗪类化合物，主要在烹煮或烘烤过程中，由于糖类和蛋白质之间的美拉德反应，在熟米或烘烤花生等食品中形成。

應用


  • Engineering Escherichia coli for high-yielding 2,5-Dimethylpyrazine synthesis from L-Threonine by reconstructing metabolic pathways and enhancing cofactors regeneration.: This study details the genetic engineering of *E. coli* to enhance the production of 2,5-Dimethylpyrazine from L-Threonine. By reconstructing metabolic pathways and improving cofactor regeneration, the researchers achieved higher yields, presenting a significant advancement for industrial bioproduction of this compound (Liu et al., 2024).

  • Pyrazines Biosynthesis by Bacillus Strains Isolated from Natto Fermented Soybean.: This research explores the natural biosynthesis of pyrazines, including 2,5-Dimethylpyrazine, by *Bacillus* strains isolated from natto. The findings contribute to understanding the microbial production of flavor compounds and their potential applications in food biotechnology (Klosowski et al., 2021).

其他說明

残留物 2,6-二甲基吡嗪

象形圖

Exclamation mark
GHS07

訊號詞

Warning

危險聲明

H302

危險分類

Acute Tox. 4 Oral

儲存類別代碼

10 - Combustible liquids

水污染物質分類（WGK）

WGK 3

閃點（°F）

147.2 °F - closed cup

閃點（°C）

64 °C - closed cup

個人防護裝備

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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分析证书(COA)

Lot/Batch Number
SHBN8764
SHBN0893
MKCH5649
MKCH0098
MKCG2800

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Flavor components of roasted peanuts. Some low molecular weight pyrazines and pyrrole.
Mason ME, et al.
Journal of Agricultural and Food Chemistry, 14(5), 454-460 (1966)
Roger N Thompson et al.
Chemical senses, 31(7), 613-619 (2006-06-08)
The social and reproductive behaviors of most mammals are modulated by pheromones, which are perceived by the vomeronasal organ (VNO). Vomeronasal transduction in vertebrates is activated through G-protein-coupled receptors, which in turn leads to the generation of inositol 1,4,5-trisphosphate (IP(3))
Katharina Mamasuew et al.
Chemical senses, 36(3), 271-282 (2010-12-15)
Based on a variety of recent findings, the Grueneberg ganglion (GG) in the vestibule of the nasal cavity is considered as an olfactory compartment. However, defined chemical substances that activate GG neurons have not been identified. In this study, the
Andrew M Duffin et al.
The journal of physical chemistry. A, 111(51), 13330-13338 (2007-12-01)
The quantum yield for HCN formation via 248 nm photodissociation of 2,3-, 2,5-, and 2,6-dimethylpyrazine (DMP, C6N2H8) was measured using diode laser probing of the HCN photoproduct. The total quantum yield is phi = 0.039 +/- 0.07, 0.14 +/- 0.02
Roger N Thompson et al.
Chemical senses, 29(9), 749-754 (2004-12-03)
Social behaviors of most mammals are affected by chemical signals, pheromones, exchanged between conspecifics. Previous experiments have shown that behavioral responses to the same pheromone differ depending on the sex and endocrine status of the respondent. Although the exact mechanism
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实验方案

GC Analysis of Pyrazines in Peanut Butter

Separation of 2-Ethyl-3-methylpyrazine; 1-Methylpyrrole; 2,3-Dimethylpyrazine; 2,5-Dimethylpyrazine; 2-Ethylpyrazine, ≥98%, FG; 2,3-Diethylpyrazine; 2-Methylpyrazine; Carbon disulfide; Dimethyl disulfide; 2,6-Dimethylpyrazine

GC Analysis of Volatiles in Roasted Coffee Beans on Omegawax® after SPME using a 50/30 µm DVB/Carboxen/PDMS Fiber

-Cymene; 2,5-Dimethylpyrrole; Acetoin, ≥96%, FCC, FG; 2,5-Dimethylpyrazine; 2,6-Dimethylpyrazine; 2-Ethylpyrazine, ≥98%, FG; 2,3-Dimethylpyrazine; 4-Heptanone; 3-Ethylpyridine; 2,3,5-Trimethylpyrazine; Furfural; Pyrrole; Furfuryl acetate; Linalool; Linalyl acetate; 5-Methylfurfural; γ-Butyrolactone; 2-Acetyl-1-methylpyrrole; Furfuryl alcohol; 2-Acetylpyrrole; Pyrrole-2-carboxaldehyde

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