isibhengezo_sekhasi

umkhiqizo

I-Boc-S-Benzyl-L-cysteine ​​(CAS# 5068-28-0)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C15H21NO4S
I-Molar Mass 311.4
Ukuminyana 1.2189 (isilinganiso esinzima)
I-Melting Point 86-88°C
I-Boling Point 481.2±45.0 °C(Kubikezelwe)
Ukuzungezisa Okuthile(α) -44.5 º (c=1, i-acetic acid)
I-Flash Point 244.8°C
Ukuncibilika DMSO, Methanol
I-Vapor Presure 4.54E-10mmHg ku-25°C
Ukubukeka Okuqinile
Umbala Emhlophe
I-BRN 2000417
pKa 3.58±0.10(Okubikezelwe)
Isimo Sesitoreji Ivalwe endaweni eyomile, engu-2-8°C
I-Refractive Index -45 ° (C=1, AcOH)
I-MDL I-MFCD00065567

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Incazelo Yokuphepha S22 - Ungaphefumuli uthuli.
I-S24/25 - Gwema ukuthintana nesikhumba namehlo.
I-WGK Germany 3
I-TSCA Yebo
Ikhodi ye-HS 29309090
I-Hazard Class I-IRRITANT

 

Isingeniso

I-Boc-S-benzyl-L-hemiphotonic acid iyinhlanganisela yemvelo igama layo lekhemikhali lingu-N-tert-butoxycarbonyl-L-phenylalanyl-L-homoserine.

 

Ikhwalithi:

I-Boc-S-benzyl-L-hemaminoic acid iyikristale eqinile emhlophe ezinzile ezingeni lokushisa legumbi. Inezinga elithile lokuncibilika kwamanzi futhi ingancibilika kuzincibilikisi eziphilayo ezivame ukusetshenziswa njenge-dimethyl sulfoxide, i-dichloromethane ne-methanol.

 

Sebenzisa:

I-Boc-S-benzyl-L-hemiphotonicamide ivamise ukusetshenziswa njengendawo emaphakathi ku-organic synthesis.

 

Indlela:

Ukulungiswa kwe-Boc-S-benzyl-L-hemiphotonines kungafezwa ngokuhlanganisa izandulela ezifanelekile ze-chiral amino acid kanye nokusabela kwe-esterification noma ukusabela kokwakheka kwebhondi ye-peptide ngaphansi kwezimo ezifanele.

 

Ulwazi Lokuphepha:

I-Boc-S-benzyl-L-semiphototophan iphephile uma iqhathaniswa ngaphansi kokusetshenziswa okuvamile nezimo zokusebenza. Kodwa kuseyinhlanganisela yemvelo enezinga elithile lengozi. Ukunakekela kufanele kuthathwe ukuze ugweme ukuhogela, ukuthintana kwesikhumba nokungenwa ngesikhathi sokusebenza. Thatha izinyathelo zokungenisa umoya ezinhle ngesikhathi sokusebenza futhi ugqoke izinto zokuzivikela ezifanele, njengamagilavu ​​aselabhorethri, izibuko zokuzivikela kanye nezingubo zaselabhorethri. Ngaphezu kwalokho, uma kunesidingo, kufanele isetshenziswe ngaphansi kokuqondisa kochwepheshe futhi ilandele ngokuqinile imithetho yokuphepha yaselabhorethri.


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