MilliporeSigma
All Photos(1)

Documents

W327204

Sigma-Aldrich

2,5-Dimethylpyrazine

≥98%, FG

Sign Into View Organizational & Contract Pricing

Synonym(s):
Ketine
Empirical Formula (Hill Notation):
C6H8N2
CAS Number:
Molecular Weight:
108.14
FEMA Number:
3272
Beilstein/REAXYS Number:
107052
EC Number:
Council of Europe no.:
2210
MDL number:
PubChem Substance ID:
Flavis number:
14.020
NACRES:
NA.21

biological source

synthetic

Quality Level

grade

FG
Fragrance grade
Halal
Kosher

agency

follows IFRA guidelines

reg. compliance

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

assay

≥98%

refractive index

n20/D 1.502 (lit.)

bp

155 °C (lit.)

density

0.99 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

documentation

see Safety & Documentation for available documents

food allergen

no known allergens

fragrance allergen

no known allergens

organoleptic

cocoa; nutty; woody; earthy

SMILES string

Cc1cnc(C)cn1

InChI

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

InChI key

LCZUOKDVTBMCMX-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
W314900W330906W327301
vibrant-m

W327204

2,5-Dimethylpyrazine

vibrant-m

W330906

2-Methylpyrazine

vibrant-m

W327301

2,6-Dimethylpyrazine

grade

FG, Halal, Fragrance grade, Kosher

grade

FG, Fragrance grade, Halal, Kosher

grade

FG, Fragrance grade, Halal, Kosher

grade

FG, Fragrance grade, Halal, Kosher

fragrance allergen

no known allergens

fragrance allergen

no known allergens

fragrance allergen

no known allergens

fragrance allergen

no known allergens

biological source

synthetic

biological source

synthetic

biological source

synthetic

biological source

synthetic

organoleptic

cocoa; nutty; woody; earthy

organoleptic

chocolate; hazelnut; nutty; peanut; roasted

organoleptic

musty; nutty; peanut

organoleptic

coffee; meaty; nutty; roasted

agency

follows IFRA guidelines

agency

follows IFRA guidelines

agency

follows IFRA guidelines, meets purity specifications of JECFA

agency

follows IFRA guidelines

General description

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.

Other Notes

remainder 2,6-dimethylpyrazine

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

147.2 °F - closed cup

flash_point_c

64 °C - closed cup

ppe

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


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 8

1 of 8

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)
W Ma et al.
Biology of reproduction, 59(6), 1317-1320 (1998-11-26)
Mature female mice, grouped in the absence of a male stimulus, exhibit a suppressed estrous cycle (the so-called Lee-Boot effect). We have designed a series of experiments to elucidate the involvement of the adrenal gland in this phenomenon. Our initial
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
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))
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

Protocols

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

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service