2-Methoxypyrazine
- 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
Boiling point | 60-61 °C/29 mmHg (lit.) |
---|---|
Density | 1.14 g/mL at 25 °C (lit.) |
FEMA | 3302 | METHOXYPYRAZINE |
refractive index |
n |
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) | GHS02,GHS05,GHS07 |
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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-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 |
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 Preparation Products And Raw materials
Raw materials
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Preparation Products
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Hebei Mojin Biotechnology Co., Ltd | +86 13288715578 +8613288715578 | sales@hbmojin.com | China | 12465 | 58 |
Hebei Chuanghai Biotechnology Co,.LTD | +86-13131129325 | sales1@chuanghaibio.com | China | 5895 | 58 |
Henan Bao Enluo International TradeCo.,LTD | +86-17331933971 +86-17331933971 | deasea125996@gmail.com | China | 2503 | 58 |
JINING XINHE CHEMICAL CO., LTD | +8615318402391 | sales@xinhepharma.com | China | 808 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21666 | 55 |
ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 32836 | 60 |
career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29888 | 58 |
Jinan Finer Chemical Co., Ltd | +86-531-88989536 +86-15508631887 | sales@finerchem.com | China | 2966 | 58 |
Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 | alice@crovellbio.com | China | 8820 | 58 |
Xiamen AmoyChem Co., Ltd | +86-592-6051114 +8618959220845 | sales@amoychem.com | China | 6387 | 58 |
View Lastest Price from 2-Methoxypyrazine manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
---|---|---|---|---|---|---|---|---|
2024-09-26 | 2-Methoxypyrazine
3149-28-8
|
US $5.00-2.00 / KG | 1KG | 99% | 10000kg | Hebei Chuanghai Biotechnology Co,.LTD | ||
2024-07-17 | 2-Methoxypyrazine
3149-28-8
|
US $0.00-0.00 / kg | 1kg | 98% | 10ton | JINING XINHE CHEMICAL CO., LTD | ||
2024-04-29 | 2-Methoxypyrazine
3149-28-8
|
US $5.00 / kg | 1kg | 99.92% | 50000tons | Ouhuang Engineering Materials (Hubei) Co., Ltd |
- 2-Methoxypyrazine
3149-28-8
- US $5.00-2.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co,.LTD
- 2-Methoxypyrazine
3149-28-8
- US $0.00-0.00 / kg
- 98%
- JINING XINHE CHEMICAL CO., LTD
- 2-Methoxypyrazine
3149-28-8
- US $5.00 / kg
- 99.92%
- Ouhuang Engineering Materials (Hubei) Co., Ltd
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