2-Cyano-4-methylpyridine (CAS# 1620-76-4)
Ubungozi Nokuphepha
| Izimpawu Eziyingozi | Xi - Irritant |
| Amakhodi Engozi | R20/21/22 – Kuyingozi ngokuhogela umoya, ukuthintana nesikhumba futhi uma ukugwinyile. R41 – Ingozi yokulimala okubi emehlweni R37/38 – Ukucasula uhlelo lokuphefumula kanye nesikhumba. I-R22 – Iyingozi uma igwinywe R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba. |
| Incazelo Yokuphepha | S22 - Ungaphefumuli uthuli. I-S36/37 – Gqoka izingubo zokuzivikela ezifanele namagilavu. S39 – Gqoka ukuvikela iso / ubuso. S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. S36 – Gqoka izingubo ezifanele zokuzivikela. |
| Ama-ID e-UN | 3276 |
| I-WGK Germany | 3 |
| Ikhodi ye-HS | 29333990 |
| I-Hazard Class | 6.1 |
| Iqembu Lokupakisha | III |
2-Cyano-4-methylpyridine (CAS# 1620-76-4) Ulwazi
| Isicelo | I-2-cyano-4-methylpyridine i-organic intermediate, engaqala i-oxidized kusuka ku-4-methylpyridine ukuze ilungiselele i-4-Methyl-pyridine-N-oxide, bese ifakwa esikhundleni seqembu le-cyano ukuze lithole. I-4-methyl-pyridine-N-oxide ingasetshenziswa ukulungisa i-4-methyl -2, i-6-dicarboxypyridine, i-4-methyl -2, i-6-dicarboxypyridine iyi-derivative ewusizo kakhulu ye-pyridine kanye nenhlanganisela ebaluleke kakhulu ephakathi, esetshenziswa kabanzi. emkhakheni wekhemisi. |
| ukulungiselela | 4-methyl-pyridine-N-oxide (0.109g,1mmol), trimethylcyanosilane (0.119g,1.2mmol),H-diethyl phosphite (0.276g,2mmol), carbon tetrachloride (0.308g,2mmol), triethylamine (0.202g, 2mmol) kanye ne-acetonitrile 10mL ku-a I-50mL yeflask enemilomo emithathu, isabela ekamelweni lokushisa amahora angu-6. Ngemva kokuqedwa kokusabela, isincibilikisi sisuswa ngaphansi kwengcindezi encishisiwe futhi sihlukaniswe ngekholomu ye-chromatography (i-petroleum ether/ethyl acetate, V/V = 4:1) ukuze kutholwe isakhiwo sethagethi yoketshezi engenambala enesivuno esingu-80%. |
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