Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
Home > 2,3-Dimethylpyrazine > 2,3-Dimethylpyrazine(5910-89-4)

2,3-Dimethylpyrazine(5910-89-4)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
2,3-Dimethylpyrazine
Synonyms
Pyrazine, 2,3-dimethyl-
CAS
5910-89-4
Formula
C6H8N2
Molecular Weight
108.14
EINECS
227-630-0
RTECS
UQ2625000
RTECS Class
Other
Beilstein/Gmelin
107908
Beilstein Reference
5-23-05-00492
EC Class
flammable, harmful

Physical and Chemical Properties

Appearance
Clear, yellow liquid. with a nutty odor.
Solubility in water
Miscible.
Melting Point
-12
Boiling Point
156
Vapor Pressure
30 (20 C)
Density
1.022 g/cm3 (25 C)
pKa/pKb
12.03 (pKb)
Usage
A component of the aroma of roasted sesame seeds.
Refractive Index
1.51 (20 C)

First Aid Measures

Ingestion
Get medical aid immediately. Wash mouth out with water.
Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids. Get medical aid.

Handling and Storage

Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Ingestion
Harmful if swallowed.
Inhalation
May cause irritation.
Skin
May cause irritation.
Eyes
May cause irritation.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
EC Risk Phrase
R 10 22
EC Safety Phrase
S 23 36/37
UN (DOT)
1993

Exposure Controls/Personal Protection

Personal Protection
Wear appropriate safety goggles, protective clothing and gloves.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Fire Fighting Measures

Flash Point
54
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. In case of fire use water spray, dry chemical, carbon dioxide, orchemical foam.
Fire Potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.

Accidental Release Measures

Small spills/leaks
Make no contact with the spilled material. ELIMINATE all ignition sources and ground all equipment. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean non-sparking tools to collect absorbed material.

Stability and Reactivity

Disposal Code
5
Incompatibilities
Keep away from strong oxidizing agents, strong acids.
Stability
No data.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
1993
Hazard Class
3
Packing Group
I; II; III
HS Code
2933 99 90
Contact More