2-Bromo-4-methyl-5-nitropyridine (CAS# 23056-47-5)
| Lambobin haɗari | R20/21/22 - Cutarwa ta hanyar shakarwa, a cikin hulɗa da fata kuma idan an haɗiye shi. R36 / 37/38 - Haushi ga idanu, tsarin numfashi da fata. |
| Bayanin Tsaro | S26 - Idan ana hulɗa da idanu, kurkura nan da nan da ruwa mai yawa kuma ku nemi shawarar likita. S37/39 - Sanya safofin hannu masu dacewa da kariya / ido |
| Matsayin Hazard | HAUSHI |
Gabatarwa
2-Bromo-4-methyl-5-nitropyridine wani fili ne na kwayoyin halitta. Mai zuwa shine gabatarwa ga yanayinsa, amfaninsa, hanyar shiri da bayanin aminci:
inganci:
2-Bromo-4-methyl-5-nitropyridine abu ne mai ƙarfi tare da lu'ulu'u mai rawaya. A dakin da zafin jiki, ba kasafai ake narkewa a cikin ruwa ba, amma yana iya zama mai narkewa a cikin kaushi na halitta kamar ethanol da dimethylformamide.
Amfani:
Ana amfani da wannan fili sau da yawa azaman tsaka-tsaki a cikin haɗin kwayoyin halitta. Ana iya amfani dashi a cikin shirye-shiryen wasu mahaɗan heterocyclic masu dauke da nitrogen, irin su pyrroles da indoles.
Hanya:
2-Bromo-4-methyl-5-nitropyridine za a iya shirya ta hanyar maye gurbin aniline. A ƙarƙashin yanayin da ya dace, an yi amfani da aniline tare da bromoacetic acid don samar da 2-bromoaniline. Bayan haka, ta hanyar alkylation a ƙarƙashin yanayin alkaline, 2-bromoaniline yana alkylated don samun 2-bromo-4-methylaniline. Sakamakon 2-bromo-4-methylaniline yana nitrified ta nitrification don samun 2-bromo-4-methyl-5-nitropyridine.
Bayanin Tsaro:
2-Bromo-4-methyl-5-nitropyridine wani nau'in halitta ne kuma yakamata a adana shi kuma a yi amfani dashi daidai. Abu ne mai konewa kuma yakamata a kiyaye shi daga buɗewar wuta da yanayin zafi. Yayin da ake aiki, ya kamata a nisantar tuntuɓar fata, idanu, da hanyoyin numfashi, kuma a yi aiki a ƙarƙashin yanayin iska. Ya kamata a sa safar hannu masu kariya, tabarau da abin rufe fuska yayin amfani. Idan ana hulɗar haɗari, kurkura nan da nan da ruwa mai yawa kuma ku nemi kulawar likita.
