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HomeProduct name listPYRAZINE N-OXIDE

PYRAZINE N-OXIDE

Synonym(s):Pyrazine-1-oxide

PYRAZINE N-OXIDE Structural

What is PYRAZINE N-OXIDE?

Purification Methods

If the sample contains pyrazine-1-oxide, then place it in a Soxhlet extractor and extract it with hot pet ether (b 60-68o) in which the mono-oxide is soluble. Collect the dioxide from the thimble and recrystallise it from MeOH. It is dried in vacuo. It has at 1270cm-1 . [Koelsch & Gumprecht J Org Chem 23 1605 1958.]

Properties of PYRAZINE N-OXIDE

Melting point: 112-116 °C
Boiling point: 126-127 °C(Press: 14 Torr)
Density  1.19±0.1 g/cm3(Predicted)
storage temp.  under inert gas (nitrogen or Argon) at 2-8°C
pka 0.45±0.39(Predicted)

Safety information for PYRAZINE N-OXIDE

Signal word Danger
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Corrosion
Corrosives
GHS05
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H228:Flammable solids
H302:Acute toxicity,oral
H315:Skin corrosion/irritation
H318:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P240:Ground/bond container and receiving equipment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for PYRAZINE N-OXIDE

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