4-Methylpyridine suppliers
4-Methylpyridine
- CAS:
- 108-89-4
- MF:
- C6H7N
- MW:
- 93.13
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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℃
- CAS DataBase Reference
- 108-89-4(CAS DataBase Reference)
- NIST Chemistry Reference
- Pyridine, 4-methyl-(108-89-4)
- EPA Substance Registry System
- 4-Methylpyridine (108-89-4)
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
- Hazardous Substances Data
- 108-89-4(Hazardous Substances Data)
- 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).
290 supplier list of "4-Methylpyridine"
$10.00/ 1KG
- Product Name:4-Methylpyridine
- Products Intro:Purity: 99%|Package: 1KG;10.00;USD
- Company Type: Trader
- Country/Region: CHINA
- Main Products: 1-Octadecanol,AMP 95,Polyisobutylene,tetramisole hcl,Ivermectin
$0.00/ 25KG
- Product Name:4-Methylpyridine
- Products Intro:Purity: 99% | Package: 25KG
- Company Type: Service provider
- Country/Region: CHINA
- Main Products: carbomer,lead acetate,phenylacetamide
- Product Name:4-Methylpyridine
- Products Intro:Purity: NLT 98% | Package: 1G;1KG;100KG
- Company Type: Trader
- Country/Region: CHINA
- Main Products: 1159983-30-8,89466-59-1,149739-51-5,104901-79-3,10541-83-0
- Product Name:4-Methylpyridine
- Products Intro:Purity: 99% | Package: 25KG;5KG;1KG
- Company Type: Trader
- Country/Region: CHINA
$2.00/ 1KG
- Product Name:4-Methylpyridine
- Products Intro:Purity: 99% | Package: 1KG;2USD
- Company Type: Reagent
- Country/Region: CHINA
- Main Products: Nicotinamide riboside chloride,Curcumin,L(+)-Ascorbic acid,L-Glutamine,Stevioside Basic information
- Product Name:4-methylpyridine
- Products Intro:Purity: 0.99 | Package: 1kg
- Company Type: Trader
- Country/Region: CHINA
- Product Name:4-Methylpyridine
- Products Intro:Purity: 99% | Package: 1kg; 25kg; or larger package as required
- Company Type: Trader
- Country/Region: CHINA
- Main Products: Specialty chemicals,OLED materials,Custom synthesis service
- Product Name:4-Methylpyridine
- Products Intro:Purity: 0.99 | Package: 1KG;5KG;100KG;1000KG | CustNote: 1KG,5KG,25KG,200KG
- Company Type: Trader
- Country/Region: CHINA
- Product Name:4-Methylpyridine
- Products Intro:Purity: 0.99 | Package: 1kg,5kg,25kgs,200kgs;bulk
- Company Type: Trader
- Country/Region: CHINA
- Main Products: Octane booster,lubricant additve,specialty chemicals,ingredients
- Product Name:4-Methylpyridine
- Products Intro:Purity: 99% | Package: 190KG/drum | CustNote: Clear colorless liquid
- Company Type: Trader
- Country/Region: CHINA