GLYCYL-L-PROLINE Cas: 704-15-4 99% budada cad
Lambarka buugaagta | XD90153 |
Magaca Alaabta | GLYCYL-L-PROLINE |
CAS | 704-15-4 |
Qaanuunka molecular | C7H12N2O3 |
Miisaanka Molecular | 172.18 |
Faahfaahinta Kaydinta | Ku kaydi RT |
Tilmaamaha Alaabta
Muuqashada | budo cad |
Asay | ≥ 99% |
Cufnaanta | 1.356±0.06 g/cm3 (20 ºC 760 Torr), |
barta dhalaalaysa | 185ºC |
Barta karkarinta | 411.3°C at 760mmHg |
Tusmada dib-u-celinta | -114 ° (C=4, H2O) |
Solubility | si fudud u milma (260 g/L) (25ºC), |
1. Hababka sifaynta dheef-shiid kiimikaadka ayaa ah aalado muhiim ah oo lagu cabbiro barkadaha dheef-shiid kiimikaadka ee hababka noolaha.Iyadoo badi hababka sifaynta dheef-shiid kiimikaadka ay soo sheegaan xoojinta qaraabada ama ay ku xiran yihiin dhowr heerar gudaha ah oo matalaya dhammaan dheef-shiid kiimikaadka, shuruudaha ugu dambeeya ee sharaxaadda tirada ee barkada dheef-shiid kiimikaadka ee unugyada noolaha iyo dareeraha ayaa ah go'aamin buuxda.Waxaan halkan ku soo wargelinaynaa gaas-soo-saar heersare ah oo xasaasi ah chromatography/tandem mass spectrometry (GC/MS/MS) habka sifaynta dheef-shiid kiimikaadka oo awood u siinaya qiyaas dhammaystiran ee dhammaan dheef-shiid kiimikaad la ogaaday.Habkani waxa uu ku salaysan yahay kala soocida chloroformate methyl iyo qiyaas iyada oo la tuujinayo muunado leh halbeegyada dheef-shiid kiimikaadka si gooni ah looga soocay reagents deuterated derivatization.Saamaynta dhaqameed ee elektarooniga ah waxaa lagu bedelay ionization kiimikaad togan tan iyo kan dambe ilaa xad aad u weyn ilaa xad la ilaaliyo ion molecular iyo jajabyada kale ee miisaanka kelli sare.Tani waxay fududaysay in la doorto kala-guurka MS/MS gaar ah oo ka mid ah dheef-shiid kiimikaad badan oo isku xidhan.Waqtigan xaadirka ah, habka cusub ee GC/MS/MS waxa uu ka kooban yahay 67 dheef-shiid kiimikaad aasaasiga ah ee caadiga ah kuwaas oo badankoodu ka tirsan yihiin kooxaha amino iyo nonamino acids organic.Waxaan tusineynaa ku-dhaqanka habka kaadida iyo shaybaarrada serum-ka.Habka ayaa ah horumar la taaban karo oo lagu sameeyay habka hadda jira ee cabbiraadda GC/MS metabolite-ka ee astaamaha amino-ka iyo asiidhyada organic nonamino.
2.24S-Hydroxycholesterol (24OHC) iyo 27-hydroxycholesterol (27OHC) waa laba qaab dhismeed isku mid ah oksisterols asal ahaan kala duwan - kii hore ku dhawaad si gaar ah ugu sameeyay maskaxda iyo kan dambe oo ku samaysmay xad ka yar maskaxda marka loo eego inta badan xubnaha kale.mala-awaalka la tijaabinayo: Dhaawaca neerfaha iyo/ama demyelination waxay sababtaa qulqulka 24OHC ee maskaxda oo gala dareeraha cerebrospinal (CSF), halka cillad maskaxda-maskaxda ay keenayso qulqulka 27OHC ee wareegga wareegga CSF.Isotope dilution-mass spectrometry ayaa loo isticmaalay in lagu qiyaaso labada oxysterols ee CSF iyo balasmaha in ka badan 250 bukaan oo qaba cudurrada neerfayaasha iyo cudurrada geriatric kala duwan. Heerarka CSF ee labada oxysterols ayaa aad u saameeyay cudurrada kala duwan marka loo eego heerarka balasmaha.Bukaanka qaba cudurrada demyelinating ee firfircoon ayaa kor u kacay heerarka 24OHC ee CSF oo leh saamiga 24OHC/27OHC aad u sarreeya.Bukaanka qaba qoorgooyaha guud ahaan waxay lahaayeen heerar sare oo labada steroids ah oo leh saamiga 24OHC/27OHC hooseeya.Bukaanka qaba cudurka Alzheimers ayaa xoogaa kordhay heerarka 24OHC ee CSF iyada oo koror yar uu yahay 27OHC.Bukaannada qaba sclerosis badan waxay u janjeeraan inay yeeshaan heerar sare oo 24OHC ah inta lagu jiro xilliyada firfircoon ee leh saamiga 24OHC/27OHC sare. Cabbiraadaha labada oxysterols ee CSF iyo plasma ayaa si weyn ugu dari kara hababka biochemical ee jira si loo qiimeeyo cudurrada neerfaha.