| Identification | More | 【Name】
5-Ethyl-2-methylpyridine | 【CAS】
104-90-5 | 【Synonyms】
2-METHYL-5-ETHYLPYRIDINE
3-ETHYL-6-METHYLPYRIDINE
5-ETHYL-2-METHYLPYRIDINE
5-ETHYL-2-PICOLINE
ALDEHYDE-COLLIDINE
ALDEHYDINE
FEMA 3546
FEMA NUMBER 3546
MEP
2,5-Aldehydine
2-Picoline, 5-ethyl-
5-ethyl-2-methyl-pyridin
5-ethyl-2-picolin
5-Ethyl-alpha-picoline
6-Methyl-3-ethylpyridine
Aldehydkollidin
collidine,aldehydecollidine
Methylethylpyridine
2-Methyl-5-Ethylyridine
5-ETHYL-2-METHYLPYRIDINE 97+% | 【EINECS(EC#)】
203-250-0 | 【Molecular Formula】
C8H11N | 【MDL Number】
MFCD00006344 | 【Molecular Weight】
121.18 | 【MOL File】
104-90-5.mol |
| Chemical Properties | Back Directory | 【Appearance】
Clear liquid | 【mp 】
-70.9 °C
| 【bp 】
178 °C(lit.)
| 【density 】
0.919 g/mL at 25 °C(lit.)
| 【vapor density 】
4.2 (vs air)
| 【FEMA 】
3546 | 【refractive index 】
n20/D 1.497(lit.)
| 【Fp 】
151 °F
| 【Stability:】
Stable. Hygroscopic. Combustible. Incompatible with strong oxidizing agents. | 【Water Solubility 】
practically insoluble | 【Usage】
5-Ethyl-2-methylpyridine is used as specific solvent and as intermediate for several chemical reactions. Attributes PIS available on request. Please contact us. Contact | 【Merck 】
14,3844 | 【BRN 】
109269 | 【CAS DataBase Reference】
104-90-5(CAS DataBase Reference) | 【NIST Chemistry Reference】
Pyridine, 5-ethyl-2-methyl-(104-90-5) | 【EPA Substance Registry System】
104-90-5(EPA Substance) |
| Safety Data | Back Directory | 【Hazard Codes 】
C,N | 【Risk Statements 】
R20/22:Harmful by inhalation and if swallowed .
R34:Causes burns.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | 【Safety Statements 】
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | 【RIDADR 】
UN 2300 6.1/PG 3
| 【WGK Germany 】
3
| 【RTECS 】
TJ6825000
| 【Hazard Note 】
Corrosive | 【HazardClass 】
6.1 | 【PackingGroup 】
III | 【Hazardous Substances Data】
104-90-5(Hazardous Substances Data) |
| Hazard Information | Back Directory | 【General Description】
A colorless to yellow liquid. Insoluble in water and more dense than water. Hence sinks in water. Contact may slightly irritate the skin, eyes, and mucous membranes. May be toxic by ingestion. Used to make other chemicals. | 【Reactivity Profile】
2-METHYL-5-ETHYLPYRIDINE(104-90-5) neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. May generate hydrogen, a flammable gas, in combination with strong reducing agents such as hydrides. A mixture of nitric acid and methyl ethyl pyridine was placed in an autoclave and heated and stirred for 40 minutes. The emergency vent opened due to a sudden pressure rise, then an explosion occurred after about 90 seconds [Chem. Eng. News 30:3348. 1952]. | 【Air & Water Reactions】
Insoluble in water. | 【Health Hazard】
Breathing of vapors will cause vomiting and chest discomfort. Contact with liquid causes skin and eye burns. | 【Fire Hazard】
Special Hazards of Combustion Products: Irritating vapors are generated when heated |
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