5-Chloro-2-hydroxy-3-nitropyridine（CAS# 21427-61-2)
| Waehere Morearea | R36/37/38 – He whakapataritari ki nga kanohi, te punaha manawa me te kiri. R41 – He kino kino ki nga kanohi R37/38 – He whakapataritari ki te punaha manawa me te kiri. R22 – He kino ki te horomia |
| Whakaahuatanga Haumaru | S26 – Mena ka pa ki nga kanohi, horoi tonu ki te nui o te wai me te rapu tohutohu hauora. S36/37/39 – Mau kakahu whakamarumaru tika, karapu me te whakamarumaru kanohi/kanohi. S39 – Mau whakamarumaru kanohi / kanohi. S36 – Mau kakahu whakamarumaru tika. S37 – Me mau karapu pai. |
| WGK Tiamana | 3 |
| Waehere HS | 29337900 |
| Te akomanga morearea | TANGATA |
Kupu Whakataki
Āhuatanga: He iti te wairewa i roto i te wai, he pai te whakarewatanga i roto i nga whakarewa pararopi. He hohe ona ahuatanga matū, he ngawari ki te whakaheke, te alkylation me etahi atu tauhohenga.
Whakamahia:
2-hydroxy-3-nitro-5-chloropyridine he uara tono i roto i te whakahiato waro. Ka taea te whakamahi hei takawaenga nui i roto i te whakahiato waro, ka uru ki roto i te maha o nga tauhohenga whakahiato waro, penei i te whakahiatotanga o nga puhui kakara hop.
Tikanga:
He maha nga tikanga mo te whakarite i te 2-hydroxy-3-nitro-5-chloropyridine, ko te tikanga noa ka riro ma te nitrification o te 2-azacyclopentadiene, katahi ano nga tauhohenga hydrogenation me te chlorination ki te whiwhi i te hua whaainga.
Mōhiohio Haumaru:
A ape i te pa atu ki nga waikura kaha, waikawa kaha, kawakore kaha me etahi atu matū hei karo i nga tauhohenga tutu.
Kia tupato ki nga tikanga whakamarumaru i te wa e whakamahia ana, ka mau i nga taputapu whakamarumaru whaiaro e tika ana, penei i nga karapu haumaru, nga karaehe, aha atu.
I te wa e whakamahi ana, e rongoa ana ranei, pupurihia te 2-hydroxy-3-nitro-5-chloropyridine ki roto i te waahi hauhautanga, he pai te hau, kia matara atu i te ahi me te wera nui.
