2-Bromo-4-methyl-5-nitropyridine（CAS# 23056-47-5)
| Nā Code Risk | R20/21/22 – He pōʻino ma ka inhalation, pili me ka ʻili a inā ale ʻia. R36/37/38 – Hoʻonanea i ka maka, ka ʻōpū hanu a me ka ʻili. |
| Ka wehewehe palekana | S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino. S37/39 – E hoʻohana i nā mīkina lima kūpono a me ka pale maka/maka |
| Papa Hazard | HOOLAHA |
Hoʻolauna
ʻO 2-Bromo-4-methyl-5-nitropyridine he mea hoʻohuihui. ʻO kēia ka hoʻolauna ʻana i kona ʻano, hoʻohana, ʻano hoʻomākaukau a me ka ʻike palekana:
ʻAno maikaʻi:
ʻO 2-Bromo-4-methyl-5-nitropyridine kahi mea paʻa me nā kristal melemele. Ma ka lumi wela, ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai, akā hiki ke hoʻoheheʻe ʻia i loko o nā mea hoʻoheheʻe organik e like me ka ethanol a me ka dimethylformamide.
E hoʻohana:
Hoʻohana pinepine ʻia kēia pūhui ma ke ʻano he waena i ka synthesis organik. Hiki ke hoʻohana ʻia i ka hoʻomākaukau ʻana i nā pūhui heterocyclic me ka nitrogen, e like me nā pyrroles a me nā indoles.
Hanana:
Hiki ke hoʻomākaukau ʻia ka 2-Bromo-4-methyl-5-nitropyridine e ka hopena o ka aniline. Ma lalo o nā kūlana kūpono, hoʻopili ʻia ka aniline me ka waikawa bromoacetic e hana ai i ka 2-bromoaniline. A laila, ma ka alkylation ma lalo o nā kūlana alkaline, 2-bromoaniline i alkylated e loaʻa ai ka 2-bromo-4-methylaniline. ʻO ka hopena 2-bromo-4-methylaniline ka nitrified e ka nitrification e loaʻa ai ka 2-bromo-4-methyl-5-nitropyridine.
ʻIke palekana:
ʻO ka 2-Bromo-4-methyl-5-nitropyridine he mea hoʻohuihui kūlohelohe a pono e mālama ʻia a hoʻohana pono ʻia. He mea hiki ke hoʻopau ʻia a pono e mālama ʻia mai nā lapalapa ākea a me nā wela kiʻekiʻe. I ka wā o ka hana, pono e pale ʻia ka hoʻopili ʻana me ka ʻili, nā maka, a me ka ʻōpū hanu, a pono e hana ʻia ka hana ma lalo o nā kūlana ventilated. Pono e hoʻohana ʻia nā mīkina lima pale, nā maka aniani a me nā masks i ka wā e hoʻohana ai. Inā loaʻa ka pilikia, holoi koke me ka wai nui a ʻimi i ka lāʻau lapaʻau.
