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2-Methoxypyrazine

2-Methoxypyrazine Structure
2-Methoxypyrazine structure
CAS No.
3149-28-8
Chemical Name:
2-Methoxypyrazine
Synonyms
METHOXYPYRAZINE;Pyrazine, methoxy-;FEMA 3302;methoxy-pyrazin;FEMA NUMBER 3302;2-METHOXYPYRAZINE;Methoxypyrazine,98%;METHOXYPYRAZINE, 2-;Pyrazine, 2-Methoxy-;2-Methoxypyrazine>
CBNumber:
CB4202646
Molecular Formula:
C5H6N2O
Molecular Weight:
110.11
MDL Number:
MFCD00006126
MOL File:
3149-28-8.mol
MSDS File:
SDS
Last updated:2024-04-29 14:28:21
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2-Methoxypyrazine Properties

Boiling point 60-61 °C/29 mmHg (lit.)
Density 1.14 g/mL at 25 °C (lit.)
FEMA 3302 | METHOXYPYRAZINE
refractive index n20/D 1.509(lit.)
Flash point 114 °F
storage temp. Sealed in dry,Room Temperature
pka 0.53±0.10(Predicted)
form clear liquid
color Colorless to Almost colorless
Specific Gravity 1.140
Odor at 1.00 % in dipropylene glycol. sweet nutty cocoa
Odor Type chocolate
JECFA Number 787
BRN 2241
LogP 0.75
CAS DataBase Reference 3149-28-8(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS) METHOXYPYRAZINE
EWG's Food Scores 1
FDA UNII RYD35T7F4T
NIST Chemistry Reference Pyrazine, methoxy-(3149-28-8)
EPA Substance Registry System Pyrazine, methoxy- (3149-28-8)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
GHS02,GHS05,GHS07
Signal word  Danger
Hazard statements  H226-H302-H315-H318-H335
Precautionary statements  P261-P280-P305+P351+P338
Hazard Codes  Xn
Risk Statements  10-22-37/38-41
Safety Statements  16-26-39
RIDADR  UN 1993 3/PG 3
WGK Germany  3
TSCA  Yes
HazardClass  3
PackingGroup  III
HS Code  29339990
NFPA 704
2
2 0

2-Methoxypyrazine price More Price(28)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich W330205 2-Methoxypyrazine ≥99%, FCC, FG 3149-28-8 1kg $1120 2023-01-07 Buy
Sigma-Aldrich 291420 2-Methoxypyrazine 95% 3149-28-8 5g $33 2023-01-07 Buy
Sigma-Aldrich W330205 2-Methoxypyrazine ≥99%, FCC, FG 3149-28-8 sample-k $53.8 2022-05-15 Buy
Sigma-Aldrich W330205 2-Methoxypyrazine ≥99%, FCC, FG 3149-28-8 25g $102 2022-05-15 Buy
Sigma-Aldrich W330205 2-Methoxypyrazine ≥99%, FCC, FG 3149-28-8 100g $166 2022-05-15 Buy
Product number Packaging Price Buy
W330205 1kg $1120 Buy
291420 5g $33 Buy
W330205 sample-k $53.8 Buy
W330205 25g $102 Buy
W330205 100g $166 Buy

2-Methoxypyrazine Chemical Properties,Uses,Production

Description

2-methoxypyrazine is a kind of pyrazine derivative. It emits a kernels and cocoa-like aroma. It is a commonly used daily, food flavoring agent. It has many kinds of flavoring derivatives such as 3-Isobutyl-2-methoxypyrazine, 3-sec-butyl-2-methoxypyrazine, 3-alkyl-2-methoxypyrazines and 3-isopropyl-2-methoxypyrazine. There derivatives could be found in wine and many kinds of fruits such as berry and grapes.

References

Murray, K. E., J. Shipton, and F. B. Whitfield. "2-methoxypyrazines and the flavour of green peas (Pisum sativum). " Chemistry & Industry 27.14(1970):897-898.
Hashizume, Katsumi, and Takashi Samuta. "Grape maturity and light exposure affect berry methoxypyrazine concentration." American Journal of Enology and Viticulture 50.2 (1999): 194-198.
Hartmann, Peter J., Harold M. McNair, and Bruce W. Zoecklein. "Measurement of 3-alkyl-2-methoxypyrazine by headspace solid-phase microextraction in spiked model wines." American Journal of Enology and Viticulture 53.4 (2002): 285-288.
HASHiZUME, Katsumi, and Norihiko Umeda. "Methoxypyrazine content of Japanese red wines." Bioscience, biotechnology, and biochemistry 60.5 (1996): 802-805.
Lacey, Michael J., et al. "Methoxypyrazines in Sauvignon blanc grapes and wines." American Journal of Enology and Viticulture 42.2 (1991): 103-108.

Description

Methoxypyrazine has an odor threshold of 700 ppb in water. Methoxypyrazine may be prepared from 2-hydroxypyrazine by various routes.

Chemical Properties

Colorless liquid

Chemical Properties

Methoxypyrazine has a sweet, nutty, cocoa odor. Methoxypyrazine contributes a distinctive “green, capsicum (bell pepper), herbaceous and earthy” aroma that is quite characteristic of certain wines, such as sauvignon blanc and cabernet sauvignon.

Occurrence

Present at ultra-trace levels in sauvignon blanc and cabernet sauvignon grapes and wine. Methoxypyrazine contributes a distinctive wine aroma, even at low parts per trillion levels. Also reported found in cooked beef, cocoa, malt and krill.

Preparation

From 2-hydroxypyrazine by various routes.

Definition

ChEBI: Methoxypyrazine is an aromatic ether and a member of pyrazines.

Aroma threshold values

700 ppb in water

Safety Profile

Skin and eye irritant. When heated to decomposition it emits toxic fumes of NOx.

2-Methoxypyrazine synthesis

14508-49-7
124-41-4
3149-28-8
Synthesis of 2-Methoxypyrazine from 2-Chloropyrazine and Sodium Methoxide

2-Methoxypyrazine Preparation Products And Raw materials

Raw materials

2-HYDROXYPYRAZINE Sodium Methoxide Pyrazine, 2-methoxy-, 1-oxide 3-Methoxypyrazine 1-oxide 5-Methoxy-2-chloropyrazine
2-CHLORO-6-METHOXYPYRAZINE 2-CHLORO-3-METHOXYPYRAZINE

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Preparation Products

2-Methoxypyrazine Suppliers

Global( 279)Suppliers
Supplier Tel Email Country ProdList Advantage
Hebei Mojin Biotechnology Co., Ltd 		+8613288715578 sales@hbmojin.com China 12467 58
Henan Bao Enluo International TradeCo.，LTD 		+86-17331933971 +86-17331933971 deasea125996@gmail.com China 2503 58
Ouhuang Engineering Materials (Hubei) Co., Ltd 		+8617702722807 admin@hbouhuang.com China 3001 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21689 55
ATK CHEMICAL COMPANY LIMITED 		+undefined-21-51877795 ivan@atkchemical.com China 32686 60
career henan chemical co 		+86-0371-86658258 sales@coreychem.com China 29914 58
Jinan Finer Chemical Co., Ltd 		+86-531-88989536 +86-15508631887 sales@finerchem.com China 2967 58
Hebei Guanlang Biotechnology Co., Ltd. 		+86-19930503282 alice@crovellbio.com China 8822 58
Xiamen AmoyChem Co., Ltd 		+86-592-6051114 +8618959220845 sales@amoychem.com China 6387 58
Hubei xin bonus chemical co. LTD 		86-13657291602 linda@hubeijusheng.com CHINA 22968 58
Supplier Advantage
Hebei Mojin Biotechnology Co., Ltd 		58
Henan Bao Enluo International TradeCo.，LTD 		58
Ouhuang Engineering Materials (Hubei) Co., Ltd 		58
Henan Tianfu Chemical Co.,Ltd. 		55
ATK CHEMICAL COMPANY LIMITED 		60
career henan chemical co 		58
Jinan Finer Chemical Co., Ltd 		58
Hebei Guanlang Biotechnology Co., Ltd. 		58
Xiamen AmoyChem Co., Ltd 		58
Hubei xin bonus chemical co. LTD 		58

View Lastest Price from 2-Methoxypyrazine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-Methoxypyrazine pictures 2024-04-29 2-Methoxypyrazine
3149-28-8
 US $5.00 / kg 1kg 99.92% 50000tons Ouhuang Engineering Materials (Hubei) Co., Ltd
2-Methoxypyrazine pictures 2024-04-23 2-Methoxypyrazine
3149-28-8
 US $50.00 / kg 1kg 99.10% 50000kg Ouhuang Engineering Materials (Hubei) Co., Ltd
2-Methoxypyrazine pictures 2023-09-14 2-Methoxypyrazine
3149-28-8
 US $100.00 / drum 1drum 99 5000 Hebei Fengqiang Trading Co., LTD
  • 2-Methoxypyrazine pictures
  • 2-Methoxypyrazine
    3149-28-8
  • US $5.00 / kg
  • 99.92%
  • Ouhuang Engineering Materials (Hubei) Co., Ltd
  • 2-Methoxypyrazine pictures
  • 2-Methoxypyrazine
    3149-28-8
  • US $50.00 / kg
  • 99.10%
  • Ouhuang Engineering Materials (Hubei) Co., Ltd

2-Methoxypyrazine Spectrum

2-Methoxypyrazine(3149-28-8)MS2-Methoxypyrazine(3149-28-8)1HNMR2-Methoxypyrazine(3149-28-8)IR1

3149-28-8(2-Methoxypyrazine)Related Search:

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