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Fmoc-L-2-Aminobutyric acid (CAS # 135112-27-5 )

Āhuatanga matū:

Tātai rāpoi C19H19NO4
Molar Mass 325.36
Kiato 1?+-.0.06 g/cm3(Te Matapae)
Te Whakarewa 161-163°C
Piro Pouri 550.7±33.0 °C(Te Matapae)
BRN 7657232
pKa 3.89±0.10(I Matapaetia)
Tikanga Rokiroki 2-8°C
Taurangi Refactive 1.613

Taipitopito Hua

Tohu Hua

Morearea me te Haumaru

Whakaahuatanga Haumaru S22 – Kaua e pupuhi puehu.
S24/25 – A ape i te pa ki te kiri me nga kanohi.
WGK Tiamana 3
Waehere HS 2924 29 70
Te akomanga morearea TANGATA

 

Fmoc-L-2-Aminobutyric acid (CAS# 135112-27-5 )Whakataki

L-2-(fluorenylmethoxycarbonylamino) waikawa butyric, e mohiotia ana ko Fmoc-glutamic acid (L-2-(9-fluorenylmethoxycarbonylamino) waikawa butyric), he matū waro. E whai ake nei he whakamaarama mo etahi o ona taonga, ona whakamahinga, tikanga me nga korero haumaru:

Taiao:
-Te ahua: te paura tioata kore tae, paku kowhai ranei;
-Tatai rāpoi: C26H23NO4;
-Taimaha rāpoi: 413.47g/mol;
-te rewa: mo te 166-168 ℃;
-Ko te whakarewatanga: Ko te waikawa Fmoc-glutamic he whakarewa i roto i nga whakarewa pararopi penei i te dimethylformamide me te waikawa hydrofluoric.

Whakamahia:
Ko te waikawa Fmoc-glutamic, hei roopu roopu tiaki, he maha nga wa e whakamahia ana i roto i te whakahiato peptide, ina koa i roto i te whakahiato o nga raupapa peptide pumau me te whakahiato o nga peptides Levenstein (Levenshtein peptide). Ka taea te whakamahi hei takawaenga waihanga o nga waikawa amino, ka whakamahia ranei i roto i te whakahiato waahanga totoka, te chromatography wai mahi teitei, aha atu.

Tikanga Whakaritenga:
Ko te whakaritenga o te waikawa Fmoc-glutamic ko nga waahanga e whai ake nei:
1. I roto i te pūnaha anhydrous, ka tauhohehia te waikawa L-glutamic ki te Fmoc-OSu (fluorenylmethoxycarbonyl-chloro anhydride), ka whakamahia te konutai pūhaumāota (NaCl) ki te whakatairanga i te tauhohenga ki te whakaputa Fmoc-glutamic acid Fmoc-A tote.
2. Mo te tote waikawa Fmoc-glutamic, ka rewa i roto i te whakarewa (penei i te dimethylformamide) ka tukuna ki tetahi tikanga purenga tika (penei i te tioata) kia whiwhi waikawa Fmoc-glutamic.

Mōhiohio Haumaru:
Ko te waikawa Fmoc-glutamic i te nuinga o te waa he tino pumau, he iti te paitini i raro i nga mahi o ia ra. Engari hei puhui pararopi, me aro tonu ki nga tikanga haumaru e whai ake nei:
-Kati te tango i te puehu, te pa ki te kiri me nga kanohi;
-I te wa e mahi ana, kakahuria nga karapu tiaki, nga karaehe me nga kakahu whakamarumaru e tutuki ana i nga whakaritenga haumaru;
-Whakamahia i roto i te taiao pai-hau kia kore e kitea tika mo te wa roa;
-Mena ka whakakorehia nga para mai i tenei puhui, me tuku tika i runga i nga tikanga o te rohe.

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