page_banner

hua

2 3-Diamino-5-bromopyridine(CAS# 38875-53-5)

Āhuatanga matū:

Tātai rāpoi C5H6BrN3
Molar Mass 188.03
Kiato 1.6770 (whakatau tata)
Te Whakarewa 155 °C (dec.) (marama)
Piro Pouri 180 °C(Pēhi: 0.005-0.01 Torr)
Tohu Kohiko 147.9°C
Wairewa wai wairewa ki te wai wera
Wairewa wairewa ki Methanol
Kohu Kohu 0.000308mmHg i te 25°C
Te ahua Te paura parauri kanapa
Tae Kowhai marama ki te papura, ki te parauri marama ranei
BRN 119436
pKa 4.53±0.49(I Matapaetia)
Tikanga Rokiroki Puritia ki te wahi pouri, Hiri ki te maroke, Te Pawera Rua
Tairongo Te rokiroki kua whakakiia te hauota
Taurangi Refactive 1.6400 (whakatau tata)
MDL MFCD00460094

Taipitopito Hua

Tohu Hua

Waehere Morearea R36/37/38 – He whakapataritari ki nga kanohi, te punaha manawa me te kiri.
R34 – He weranga
Whakaahuatanga Haumaru S26 – Mena ka pa ki nga kanohi, horoi tonu ki te nui o te wai me te rapu tohutohu hauora.
S36 – Mau kakahu whakamarumaru tika.
S37/39 – Kia mau nga karapu tika me te whakamarumaru kanohi/kanohi
S45 – Ki te puta he aitua, ki te kore ranei koe e pai, rapu wawe i nga tohutohu hauora (whakaatuhia te tapanga ina taea.)
S36/37/39 – Mau kakahu whakamarumaru tika, karapu me te whakamarumaru kanohi/kanohi.
WGK Tiamana 3
Waehere HS 29333990
Tuhipoka morearea Whakariri
Te akomanga morearea 6.1
Roopu Tarapi III

 

Kupu Whakataki

Ko te 5-Bromo-2,3-diaminopyridine he pūhui waro. E whai ake nei he kupu whakataki mo tona ahuatanga, te whakamahinga, nga tikanga whakangao me nga korero haumaru:

 

Kounga:

- Te ahua: Ko te 5-Bromo-2,3-diaminopyridine he ma ki te maramara kowhai kowhai kowhai kowhai paura ranei.

- Wairewa: He paku whakarewa te pūhui ki te wai, ā, he pai te whakarewatanga i roto i te whakarewa waro.

 

Whakamahia:

- Ko te 5-Bromo-2,3-diaminopyridine te nuinga o te whakamahia hei reagent i roto i nga tauhohenga whakahiato waro.

- Ka taea te whakamahi hei takawaenga i roto i te whakahiatotanga o nga puhui whakakotahi me nga whakakōkī.

 

Tikanga:

Ko te whakarite o te 5-bromo-2,3-diaminopyridine ka taea e nga waahanga e whai ake nei:

1. Whakangaromia te 2,3-diaminopyridine ki te waikawa pūhaumāota waimeha tuatahi.

2. Ka tāpirihia te konutai nitrite hei hanga pūhui nitroso.

3. I raro i nga tikanga pati wai tio, ka taapirihia te konupora bromide ki te hanga 5-bromo-2,3-diaminopyridine.

 

Mōhiohio Haumaru:

- Ko te 5-Bromo-2,3-diaminopyridine he puhui pararopi me penapena me te whakamahi tika kia kore e pa ki te kiri me nga kanohi.

- I te wa e whakahaere ana, me whai tikanga pai mo te haumaru taiwhanga, penei i te mau taputapu whakamarumaru e tika ana (hei tauira, nga karapu, karaehe, koti taiwhanga, aha atu).

- Whakawhanakehia te puhui kia kore ai e puta he morearea mai i te whakangohanga, i te horomanga, i te pa atu ranei.

I roto i nga rangahau matū me nga whakamatautau, he mea nui ki te mahi pai mo te whakahaere haumaru taiwhanga me te mahi i runga i nga tohutohu a nga tohunga.


  • Tōmua:
  • Panuku:

  • Tuhia to korero ki konei ka tukuna mai ki a matou