2-Methoxypyrazine
Description References- Product Name
- 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
- Formula Weight
- 110.11
- MOL File
- 3149-28-8.mol
2-Methoxypyrazine Property
- Boiling point:
- 60-61 °C/29 mmHg (lit.)
- Density
- 1.14 g/mL at 25 °C (lit.)
- refractive index
- n20/D 1.509(lit.)
- FEMA
- 3302 | METHOXYPYRAZINE
- Flash point:
- 114 °F
- storage temp.
- Sealed in dry,Room Temperature
- pka
- 0.53±0.10(Predicted)
- form
- clear liquid
- Specific Gravity
- 1.140
- color
- Colorless to Almost colorless
- 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)
- NIST Chemistry Reference
- Pyrazine, methoxy-(3149-28-8)
- EPA Substance Registry System
- Pyrazine, methoxy- (3149-28-8)
Safety
- 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
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H226Flammable liquid and vapour
H302Harmful if swallowed
H315Causes skin irritation
H318Causes serious eye damage
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- W330205
- Product name
- 2-Methoxypyrazine
- Purity
- ≥99%, FCC, FG
- Packaging
- 1kg
- Price
- $1120
- Updated
- 2023/01/07
- Product number
- 291420
- Product name
- 2-Methoxypyrazine
- Purity
- 95%
- Packaging
- 5g
- Price
- $33
- Updated
- 2023/01/07
- Product number
- W330205
- Product name
- 2-Methoxypyrazine
- Purity
- ≥99%, FCC, FG
- Packaging
- sample-k
- Price
- $53.8
- Updated
- 2022/05/15
- Product number
- W330205
- Product name
- 2-Methoxypyrazine
- Purity
- ≥99%, FCC, FG
- Packaging
- 25g
- Price
- $102
- Updated
- 2022/05/15
- Product number
- W330205
- Product name
- 2-Methoxypyrazine
- Purity
- ≥99%, FCC, FG
- Packaging
- 100g
- Price
- $166
- Updated
- 2022/05/15
2-Methoxypyrazine Chemical Properties,Usage,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
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.
Chemical Properties
Colorless liquid
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.
Definition
ChEBI: Methoxypyrazine is an aromatic ether and a member of pyrazines.
Preparation
From 2-hydroxypyrazine by various routes.
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
Preparation Products
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View Lastest Price from 2-Methoxypyrazine manufacturers
- Product
- 2-Methoxypyrazine 3149-28-8
- Price
- US $5.00/kg
- Min. Order
- 1kg
- Purity
- 99.92%
- Supply Ability
- 50000tons
- Release date
- 2024-04-29
- Product
- 2-Methoxypyrazine 3149-28-8
- Price
- US $50.00/kg
- Min. Order
- 1kg
- Purity
- 99.10%
- Supply Ability
- 50000kg
- Release date
- 2024-04-23
- Product
- 2-Methoxypyrazine 3149-28-8
- Price
- US $100.00/drum
- Min. Order
- 1drum
- Purity
- 99
- Supply Ability
- 5000
- Release date
- 2023-09-14