4-Methylpyridine
4-Methylpyridine
- CAS:
- 108-89-4
- MF:
- C6H7N
- MW:
- 93.13
Suppliers by country/region
Company Type
Properties
- Melting point:
- 2.4 °C (lit.)
- Boiling point:
- 145 °C (lit.)
- Density
- 0.957 g/mL at 25 °C (lit.)
- vapor density
- 3.2 (vs air)
- vapor pressure
- 4 mm Hg ( 20 °C)
- refractive index
- n
20/D 1.504(lit.)
- Flash point:
- 134 °F
- storage temp.
- Store below +30°C.
- solubility
- alcohol: soluble(lit.)
- form
- Liquid
- pka
- 6.02(at 20℃)
- color
- Clear light yellow
- Odor
- Obnoxious, Sweetish
- explosive limit
- 1.3-8.7%(V)
- Water Solubility
- soluble
- Sensitive
- Air Sensitive & Hygroscopic
- Merck
- 14,7402
- BRN
- 104586
- Dielectric constant
- 12.279999999999999
- InChIKey
- FKNQCJSGGFJEIZ-UHFFFAOYSA-N
- LogP
- 1.22 at 25℃
Safety Information
- Symbol(GHS)
GHS02,GHS06
- Signal word
- Danger
- Hazard statements
- H226-H302+H332-H311-H315-H319-H335
- Precautionary statements
- P210-P280-P301+P312-P303+P361+P353-P304+P340+P312-P305+P351+P338
- Hazard Codes
- T
- Risk Statements
- 10-20/22-24-36/37/38
- Safety Statements
- 26-36-45
- RIDADR
- UN 1992 3/PG 3
- WGK Germany
- 1
- RTECS
- UT5425000
- Autoignition Temperature
- 1000 °F
- TSCA
- Yes
- HazardClass
- 3
- PackingGroup
- III
- HS Code
- 29333955
- Toxicity
- LD50 orally in rats: 1.29 g/kg (Smyth)
Use
Currently, 4-methylpyridine is produced by vapor-phase condensation of acetaldehyde and ammonia (3:1) with subsequent isolation of 4-methylpyridine from the reaction mixture. Reactants are exposed to dehydration-dehydrogenation catalysis such as lead oxide, copper oxide on alumina, thorium oxide, zinc oxide or cadmium oxide on silica-alumina, or cadmium fluoride on silica-magnesia at 400-500°C. This results in a 60% yield of 4-methylpyridine which is isolated by fractional distillation (USEPA 1982). Another production method involves the isolation from by-products of coking operations. The crude pyridine extracts come from noncondensable and condensable coke-oven gasses that have been dehydrated and separated by fractional distillation, but only 45% of 4-methylpyridine is obtained (USEPA 1982). 4-Methylpyridine also can be isolated from a dry distillation of bones or coal (Hawley 1977).
37 India supplier list of "4-Methylpyridine"
- Product Name:4-Picoline, 98%
- Products Intro:Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Trader
- Country/Region: Gujarat,INDIA
- Product Name:4-Methyl Pyridine
- Products Intro:Purity: 99% | Package: 20KG;INR
- Company Type: Trader
- Country/Region: Hyderabad,INDIA
- Product Name:4-Picoline
- Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Reagent
- Country/Region: Uttar Pradesh,INDIA
- Product Name:4-Picoline
- Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg
- Company Type: Reagent
- Country/Region: Maharashtra,INDIA
- Product Name:4-METHYL PYRIDINE
- Products Intro:Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Manufacturer
- Country/Region: Maharashtra,INDIA
- Product Name:4-Picoline
- Products Intro:Purity: 98% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Manufacturer
- Country/Region: Maharashtra,INDIA
- Product Name:[13C6,15N]-4-Methylpyridine
- Products Intro:Brand：clearsynth | Product Number：CS-EK-02329 | Purity：98
- Company Type: Trader
- Country/Region: Hyderabad,INDIA
- Product Name:4-Methylpyridine
- Products Intro:Brand:sigma aldrich | Product Number:131490 | Purity:98%
- Company Type: Trader
- Country/Region: Bangalore,INDIA
- Product Name:4-Methylpyridine
- Company Type: Trader
- Country/Region: New Delhi,INDIA
- Product Name:4-Methylpyridine
- Company Type: Trader
- Country/Region: New Delhi,INDIA