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Cas Database

Name	2-Methyl-5-vinylpyridine	EINECS	205-432-5
CAS No.	140-76-1	Density	0.954 g/cm³
PSA	12.89000	LogP	2.03300
Solubility	N/A	Melting Point	-12.0 °C
Formula	C₈H₉N	Boiling Point	175.525 °C at 760 mmHg
Molecular Weight	119.166	Flash Point	56.618 °C
Transport Information	N/A	Appearance	Clear to faintly opalescent liquid
Safety		Risk Codes	N/A
Molecular Structure		Hazard Symbols	N/A
Synonyms	2-Picoline,5-vinyl- (8CI);2-MVP;5-Ethenyl-2-methylpyridine;BRN 0106229;HSDB 6325;MVP;	Article Data	20

2-Methyl-5-vinylpyridine Synthetic route

: 1-(6-methylpyridin-3-yl)ethanol maleate

: 140-76-1
2-methyl-5-vinylpyridine

Conditions

Conditions	Yield
Stage #1: 1-(6-methylpyridin-3-yl)ethanol maleate With thionyl chloride; sodium hydroxide In Isopropyl acetate Stage #2: With potassium hydroxide In 1-methyl-pyrrolidin-2-one at 50℃; for 4h;	99%

: 3430-13-5
5-bromo-2-methylpyridine

: 7486-35-3
tri-n-butyl(vinyl)tin

: 140-76-1
2-methyl-5-vinylpyridine

Conditions

Conditions	Yield
tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran; N,N-dimethyl-formamide at 20 - 100℃; Inert atmosphere;	47%

: 104-90-5
5-ethyl-2-methyl-pyridine

: 140-76-1
2-methyl-5-vinylpyridine

Conditions

Conditions	Yield
With cerium(IV) oxide; carbon dioxide at 700℃; Siliciumdioxid;
With carbon dioxide; tungsten(VI) oxide at 700℃; Siliciumdioxid;
With zinc oxide-chromium oxide-iron oxide-aluminium oxide; steam; potassium oxide at 600℃;
With chromium corundum at 600℃;

(+-)-1-<6-methyl-<3>pyridyl>-ethanol: (+-)-1-<6-methyl-<3>pyridyl>-ethanol

: 140-76-1
2-methyl-5-vinylpyridine

Conditions

Conditions	Yield
With calcium hydrogen phosphate at 450℃;
With potassium hydrogensulfate at 230℃;

(+-)-1-acetoxy-1-<6-methyl-<3>pyridyl>-ethane: (+-)-1-acetoxy-1-<6-methyl-<3>pyridyl>-ethane

: 140-76-1
2-methyl-5-vinylpyridine

Conditions

Conditions	Yield
With acetone at 570℃; Pyrolysis;

: 104-90-5
5-ethyl-2-methyl-pyridine

steam: steam

A: 140-76-1
2-methyl-5-vinylpyridine

B 3-ethyl-pyridin; additional product: 3-methyl-pyridine: 3-ethyl-pyridin; additional product: 3-methyl-pyridine

C 3-vinyl-pyridin; additional product: 2-methyl-pyridine: 3-vinyl-pyridin; additional product: 2-methyl-pyridine

D 2,5-dimethyl-pyridin; additional product: pyridine: 2,5-dimethyl-pyridin; additional product: pyridine

Conditions

Conditions	Yield
at 580 - 600℃; Leiten ueber durch Kaliumoxid aktivierte Zinkoxid-Chromoxid-Eisenoxid-Aluminiumoxid-Katalysatoren;

...Expand

: 104-90-5
5-ethyl-2-methyl-pyridine

A: 140-76-1
2-methyl-5-vinylpyridine

B: 100-54-9
pyridine-3-carbonitrile

C: 14178-13-3
5-ethyl-pyridine-2-carbonitrile

D: 2-cyano-5-vinylpyridine

Conditions

Conditions	Yield
With ammonia; water; oxygen; vanadia; titanium(IV) oxide at 380℃; Product distribution; Further Variations:; reaction times;

: 53014-84-9
2-methyl-5-formylpyridine

: 1779-49-3
Methyltriphenylphosphonium bromide

: 140-76-1
2-methyl-5-vinylpyridine

Conditions

Conditions	Yield
Stage #1: Methyltriphenylphosphonium bromide With potassium tert-butylate In diethyl ether at 5℃; for 1h; Stage #2: 2-methyl-5-formylpyridine In diethyl ether at 10℃; for 0.5h; Solvent;	38.2 g
Stage #1: Methyltriphenylphosphonium bromide With n-butyllithium In tetrahydrofuran; hexane at -78 - 20℃; Stage #2: 2-methyl-5-formylpyridine In tetrahydrofuran; hexane at 0 - 20℃;

: 2-methyl-5-vinylpyridine sesqui-oxalate

: 140-76-1
2-methyl-5-vinylpyridine

Conditions

Conditions	Yield
With potassium hydroxide In tert-butyl methyl ether; water pH=~ 14; Product distribution / selectivity;

: 3430-13-5
5-bromo-2-methylpyridine

: potassium vinyltrifluoroborate

: 140-76-1
2-methyl-5-vinylpyridine

Conditions

Conditions	Yield
With caesium carbonate; triphenylphosphine In water at 75 - 80℃; for 19h; Inert atmosphere;
With caesium carbonate; triphenylphosphine In water at 75 - 80℃; for 19h; Inert atmosphere;
With caesium carbonate; triphenylphosphine In water at 75 - 80℃; for 19h; Inert atmosphere;

2-Methyl-5-vinylpyridine Chemical Properties

The Molecular Structure of 2-Methyl-5-vinylpyridine (CAS NO.140-76-1):

Empirical Formula: C₈H₉N
Molecular Weight: 119.1638
IUPAC Name: 5-ethenyl-2-methylpyridine
Nominal Mass: 119 Da
Average Mass: 119.1638 Da
Monoisotopic Mass: 119.073499 Da
Index of Refraction: 1.555
Molar Refractivity: 40.09 cm³
Molar Volume: 124.8 cm³
Surface Tension: 35.1 dyne/cm
Density: 0.954 g/cm³
Flash Point: 56.6 °C
Enthalpy of Vaporization: 39.49 kJ/mol
Boiling Point: 175.5 °C at 760 mmHg
Vapour Pressure: 1.53 mmHg at 25°C
Synonyms: Pyridine, 2-methyl-5-vinyl ; 2-MVP ; 2-Methyl-5-vinylpyridine ; 2-Picoline, 5-vinyl- ; 5-20-06-00218 (Beilstein Handbook Reference) ; 5-Ethenyl-2-methylpyridine ; BRN 0106229 ; EINECS 205-432-5 ; HSDB 6325 ; MVP ; Pyridine, 2-methyl-5-vinyl- ; Pyridine, 5-ethenyl-2-methyl- ; Pyridine, 5-ethenyl-2-methyl- ; Pyridine, 2-methyl-5-vinyl-

2-Methyl-5-vinylpyridine Uses

2-Methyl-5-vinylpyridine (CAS NO.140-76-1) is used as a monomer for resins, as an oil additive, ore flotation agent; and dye acceptor.

2-Methyl-5-vinylpyridine Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Source
mammal (species unspecified)	LD50	oral	1250mg/kg (1250mg/kg)	Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 39(4), Pg. 86, 1974.
mouse	LC50	inhalation	213mg/m³/2H (213mg/m³)	"Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 88, 1982.
mouse	LD50	oral	775mg/kg (775mg/kg)	"Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 88, 1982.
mouse	LD50	subcutaneous	532mg/kg (532mg/kg)	"Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 88, 1982.
rabbit	LD50	skin	800uL/kg (0.8mL/kg)	American Industrial Hygiene Association Journal. Vol. 30, Pg. 470, 1969.
rat	LC50	inhalation	189mg/m³/2H (189mg/m³)	"Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 88, 1982.
rat	LD50	oral	1300uL/kg (1.3mL/kg)	American Industrial Hygiene Association Journal. Vol. 30, Pg. 470, 1969.
rat	LD50	subcutaneous	1290mg/kg (1290mg/kg)	"Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 88, 1982.

2-Methyl-5-vinylpyridine Safety Profile

RIDADR: 2810
HazardClass :6.1(b)
PackingGroup: III
2-Methyl-5-vinylpyridine (CAS NO.140-76-1) is moderately toxic by ingestion, inhalation, and absorption through the skin.

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