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5-Ethyl-2-methylpyridine CAS 104-90-5

5-Ethyl-2-methylpyridine - Names and IdentifiersName5-Ethyl-2-methylpyridineSynonymsFEMA 3546FE

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5-Ethyl-2-methylpyridine - Names and Identifiers

Name5-Ethyl-2-methylpyridine
SynonymsFEMA 3546
FEMA NUMBER 3546
5-ETHYL-2-PICOLINE
5-Ethyl-2-picoline
2-Methyl-5-Ethylyridine
5-Ethyl-2-methylpyridine
5-ETHYL-2-METHYLPYRIDINE
2-Methyl-5-Ethylpyridine
2-METHYL-5-ETHYLPYRIDINE
2-Methyl-5-Ethyl Pyridine
Pyridine, 5-ethyl-2-methyl-
CAS104-90-5
EINECS203-250-0
InChIKeyNTSLROIKFLNUIJ-UHFFFAOYSA-N

5-Ethyl-2-methylpyridine - Physico-chemical Properties

Molecular FormulaC8H11N
Molar Mass121.18
Density0.919 g/mL at 25 °C (lit.)
Melting Point-70.9 °C
Boling Point178 °C (lit.)
Flash Point151°F
JECFA Number1318
Water Solubilitypractically insoluble
Solubility12.0g/l
Vapor Presure1.853hPa at 20℃
Vapor Density4.2 (vs air)
Appearanceclear liquid
Specific Gravity0.921 (20/4℃)
ColorColorless to Light orange to Yellow
Merck14,3844
BRN109269
pKapK1:6.51(+1) (20°C)
Storage ConditionStore below +30°C.
StabilityStable. Hygroscopic. Combustible. Incompatible with strong oxidizing agents.
Refractive Indexn20/D 1.497(lit.)
Physical and Chemical PropertiesColorless to yellow liquid. Melting Point -70.9 °c. Boiling point 178 °c.
UseFor the pharmaceutical industry, for the preparation of nicotinic acid, nicotinamide, isoniazid, nicotidine, etc

5-Ethyl-2-methylpyridine - Risk and Safety

Risk CodesR20/22 - 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 DescriptionS26 - 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 the label whenever possible.)
S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. 
UN IDsUN 2300 6.1/PG 3
WGK Germany3
RTECSTJ6825000
TSCAYes
HS Code29333990
Hazard NoteCorrosive
Hazard Class6.1
Packing GroupIII

5-Ethyl-2-methylpyridine - Reference Information

FEMA3546 | 5-ETHYL-2-METHYLPYRIDINE
LogP2.1 at 22℃
NIST chemical information information provided by: webbook.nist.gov (external link)
EPA chemical substance information information provided by: ofmpeb.epa.gov (external link)
Use pharmaceutical intermediates.
used in the pharmaceutical industry, for the preparation of nicotinic acid, nicotinamide, isoniazid, nicotidine, etc.
category toxic substances
toxicity grade high toxicity
Acute toxicity oral-rat LD50: 368 mg/kg; Oral-mouse LD50: 282 mg/kg
stimulation data Skin-rabbits 10 mg/24 h severe; eye-rabbit 0.25 mg severe
flammability hazard characteristics open flame flammable; Thermally decomposed toxic nitrogen oxide gas
storage and transportation characteristics warehouse ventilation and low temperature drying; Separate storage and transportation from food raw materials and textiles
extinguishing agent dry powder, carbon dioxide, sand, foam
toxic substance data information provided by: pubchem.ncbi.nlm.nih.gov (external link)

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