| | 108-89-4 Basic information More.. |
| Product Name: | 4-Methylpyridine | | Synonyms: | g-picoline;4-picoline (gamma);PicolineMethylpyridine;4-Methylpyrdine;4-METHYL PYRIDINE (Picoline);4-Picoline, 99+%;4-PICOLINE 98%;4-methylpyridine 4-picoline | | CAS: | 108-89-4 | | MF: | C6H7N | | MW: | 93.13 | | EINECS: | 203-626-4 | | Mol File: | 108-89-4.mol |  |
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).
- 4-Methylpyridine
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- US $800.00-1200.00 / ton
- 2023-12-22
- CAS:108-89-4
- Min. Order: 1ton
- Purity: 99%,HPLC
- Supply Ability: 45000 ton/year
- 4-Methylpyridine
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- US $0.00 / KG
- 2023-06-28
- CAS:108-89-4
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 50000KG/month
- 4-Picoline
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- US $100.00 / kg
- 2022-09-08
- CAS:108-89-4
- Min. Order: 1kg
- Purity: 0.99
- Supply Ability: 100tons
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108-89-4
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