L-Cysteine 99% |52-90-4
Sharaxaada Alaabta:
L-cysteine, oo ah amino acid caadi ahaan laga helo noolaha noolaha.Waa mid ka mid ah asiidhyada α-amino ee baaruudku ka kooban yahay.Waxay isu beddeshaa guduud (midab ay sabab u tahay SH) iyadoo ay jirto nitroprusside.Waxay ku jirtaa borotiinno badan iyo glutathione.Waxa ay samayn kartaa isku dhisyo aan la milmi karin oo leh ion bir ah sida Ag+, Hg+, iyo Cu+.mercaptide.Taasi waa, RS-M', RSM" -SR (M', M" waa biraha monovalent iyo kala-duwan, siday u kala horreeyaan).
Qaaciddada molecular C3H7NO2S, miisaanka kelli 121.16.Kiristaalo aan midab lahayn.Ku milmay biyaha, acetic acid iyo ammonia, oo aan milmi karin ether, acetone, ethyl acetate, benzene, carbon disulfide iyo carbon tetrachloride.Waxaa lagu oxidized karaa cystine by hawada ee dhexdhexaad ah iyo xalalka alkaline daciif ah.
Waxtarka L-Cysteine 99%:
1. Inta badan waxaa loo isticmaalaa dawooyinka, qurxinta, cilmi-baarista biochemical, iwm.
2. Waxaa loo isticmaalaa rootiga si kor loogu qaado samaynta gluten, kor u qaadida halsano, sii daynta caaryada, iyo ka hortagga gabowga.
3. Waxaa loo isticmaalaa casiirka dabiiciga ah si looga hortago oksaydhka fiitamiin C iyo ka hortagga casiir ka soo baxa browning.Alaabtani waxay leedahay saameyn sun-saarid ah waxaana loo isticmaali karaa sumowga acrylonitrile iyo sumowga aashitada udgoonka.
4. Alaabtani waxa kale oo ay leedahay saamaynta ay kaga hortagto waxyeelada shucaaca jidhka bini’aadamka,sidoo kale waa dawada lagu daweeyo boronkiitada,gaar ahaan sida daawada xaakada ka saarta (inta badan waxa loo isticmaalaa qaabka acetyl L-cysteine methyl ester. Cosmetics). waxaa inta badan loo isticmaalaa quruxda Biyaha, lotion perm, kiriimka qorraxda, iwm.
Tilmaamayaasha farsamada ee L-Cysteine 99%:
Shayga Falanqaynta Tilmaamid
Muuqashada Budada crystals cad ama budada crystalline
Aqoonsiga spectrum nuugista infrared
Wareeg gaar ah[a] D20° +8.3°~+9.5°
Xaaladda xalka ≥95.0%
Ammonium (NH4) ≤0.02%
Chloride (Cl) ≤0.1%
Sulfate (SO4) ≤0.030%
Birta (Fe) ≤10ppm
Biraha culus (Pb) ≤10ppm
Arsenic ≤1ppm
Khasaaraha qalajinta ≤0.5%
Hadhaaga dabka ≤0.1%
Qiimaynta 98.0 ~ 101.0%
PH 4.5 ~ 5.5
