ChemicalBook
Chinese Japanese Germany

Pyrazine

Description References
Pyrazine
Pyrazine
CAS No.
290-37-9
Chemical Name:
Pyrazine
Synonyms
PyBO;Piazine;Pyrazin;PYRAZINE;FEMA 4015;p-Diazine;1,4-DIAZINE;Paradiazine;1,4-Pyrazine;PYRAZINE(SG)
CBNumber:
CB1450659
Molecular Formula:
C4H4N2
Formula Weight:
80.09
MOL File:
290-37-9.mol

Pyrazine Properties

Melting point:
50-56 °C(lit.)
Boiling point:
115-116 °C(lit.)
Density 
1.031 g/mL at 25 °C(lit.)
refractive index 
1.5235
FEMA 
4015 | PYRAZINE
Flash point:
132 °F
storage temp. 
Flammables area
solubility 
SOLUBLE
pka
0.65(at 27℃)
form 
Crystals
color 
White
Water Solubility 
SOLUBLE
Sensitive 
Hygroscopic
Merck 
14,7957
BRN 
103905
Stability:
Stable. Highly flammable. Incompatible with acids, oxidizing agents.
CAS DataBase Reference
290-37-9(CAS DataBase Reference)
NIST Chemistry Reference
Pyrazine(290-37-9)
EPA Substance Registry System
Pyrazine(290-37-9)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi,F
Risk Statements  36/37/38-11
Safety Statements  26-36-16
RIDADR  UN 1325 4.1/PG 2
WGK Germany  3
RTECS  UQ2015000
TSCA  T
HazardClass  4.1
PackingGroup  III
HS Code  29339990
Symbol(GHS):
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H228 Flammable solid Flammable solids Category 1
Category 2
Danger
Warning
P210, P240,P241, P280, P370+P378
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P240 Ground/bond container and receiving equipment.
P241 Use explosion-proof electrical/ventilating/lighting/…/equipment.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P370+P378 In case of fire: Use … for extinction.
P405 Store locked up.

Pyrazine price More Price(16)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich P56003 Pyrazine ≥99% 290-37-9 5g $19.2 2018-11-13 Buy
Sigma-Aldrich 65693 Pyrazine analytical standard 290-37-9 100mg $46.6 2018-11-13 Buy
TCI Chemical P0544 Pyrazine >98.0%(GC) 290-37-9 25g $27 2018-11-22 Buy
TCI Chemical P0544 Pyrazine >98.0%(GC) 290-37-9 500g $206 2018-11-22 Buy
Alfa Aesar 016326 Pyrazine, 98% 290-37-9 50g $75.4 2018-11-16 Buy

Pyrazine Chemical Properties,Uses,Production

Description

Pyrazine is a heterocyclic aromatic organic compound and can be reacted to obtain diverse pyrazine derivatives. Pyrazines are important contributors to the flavor of various roasted, toasted, or similarly heated foods. Pyrazine derivatives exhibit a wide variety of aromas in food, e.g. 2-methoxy-3-isopropylpyrazine produces a green pea odor. Pyrazines and pyrazine derivatives are typically used as flavor agent. Pyrazines and Pyrazine derivatives are also used as fragrances.

References

[1] T.B. Adamsa, J. Doullb, V.J. Feronc, J.I. Goodmand, L.J. Marnette, I.C. Munrof, P.M. Newberneg, P.S. Portogheseh, R.L. Smithi, W.J. Waddellj and B.M. Wagnerk, The FEMA GRAS assessment of pyrazine derivatives used as flavor ingredients, Food and Chemical Toxicology, 2002, vol. 40, 429-451

Chemical Properties

white crystals or powder

Definition

ChEBI: A diazine that is benzene in which the carbon atoms at positions 1 and 4 have been replaced by nitrogen atoms.

Purification Methods

Distil pyrazine in steam and crystallise it from water. Purify also by zone melting. [Beilstein 23 H 91, 23 II 80, 23 III/IV 899, 23/5 V 351.]

Pyrazine Preparation Products And Raw materials

Raw materials

Preparation Products


Pyrazine Suppliers

Global( 203)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 sales@capotchem.com China 19958 60
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32764 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 20001 58
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com China 40399 62
3B Pharmachem (Wuhan) International Co.,Ltd. 86-21-50328103 * 801、802、803、804 Mobile:18930552037
86-21-50328109 3bsc@sina.com China 15940 69
future industrial shanghai co., ltd 400-0066-400;021-60496031
021-55660885 sales@jonln.com China 2042 65
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 saleschina@alfa-asia.com China 30308 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 / 800-988-0390
021-67121385 Sales-CN@TCIchemicals.com China 24654 81
Beijing dtftchem Technology Co., Ltd. 13651141086; 86(10)60275028、60275820
86 (10) 60270825 dtftchem@sina.com China 1443 62

View Lastest Price from Pyrazine manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-07-28 Pyrazine
290-37-9
US $100.00 / KG 25KG 98% 1000T career henan chemical co

Pyrazine Spectrum


290-37-9(Pyrazine)Related Search:


Copyright 2017 © ChemicalBook. All rights reserved