Beta-D-Galactose pentaacetate CAS:114162-64-0

Beta-D-galactose pentaacetate, oo badanaa loo yaqaan galactose pentaacetate, waa nooc ka mid ah galactose kaas oo shan kooxood oo acetyl ah ay ku xiran yihiin kooxaha hydroxyl ee galactose. Wax ka beddelka kiimikadani wuxuu xoojiyaa xasilloonida isku-dhafka wuxuuna beddelaa sifooyinkiisa jireed iyo kiimikadeed.

Saamaynta ugu weyn iyo adeegsiga beta-D-galactose pentaacetate waxay ku jirtaa u isticmaalkeeda koox ilaalin ah oo loogu talagalay galactose ee isku-darka dabiiciga ah. Kooxaha ilaalinta waa isbeddello ku-meel-gaar ah oo loo isticmaalo in lagu ilaaliyo kooxaha shaqada gaarka ah ee ku jira molecule-ka falcelinta aan loo baahnayn inta lagu jiro isbeddellada kiimikada. Xaaladda galactose, kooxaha acetyl-ka ee qaabka pentaacetate waxay u adeegaan sidii gaashaan ilaalin ah oo loogu talagalay kooxaha hydroxyl. 

Iyagoo adeegsanaya beta-D-galactose pentaacetate koox ilaalin ah, kiimikooyinku waxay si xulasho ah u maamuli karaan gobollada kale ee molecule-ka iyagoon wax ka beddelin ama faragelin kooxaha hydroxyl. Kala-duwanaanshahani wuxuu u oggolaanayaa isku-darka la xakameeyey oo sax ah meelaha sida kiimikada karbohaydraytka, horumarinta daawada, iyo isku-darka wax soo saarka dabiiciga ah.

Marka falcelinta la rabo la dhammeeyo, kooxaha acetyl-ka waa la kala jari karaa si loo soo celiyo kooxaha hydroxyl ee asalka ah ee galactose, taasoo soo saarta badeecada la rabo. Dhowr hab, sida hydrolysis oo leh xaalado aasaasi ah ama hydrolysis enzymatic, ayaa loo isticmaali karaa in lagu saaro kooxaha acetyl.