L-Cysteine 99% |52-90-4
Incazelo Yomkhiqizo:
I-L-cysteine, i-amino acid evame ukutholakala ezintweni eziphilayo.Ingenye ye-α-amino acid equkethe isulfure.Iba nsomi (inemibala ngenxa ye-SH) phambi kwe-nitroprusside.Itholakala kumaprotheni amaningi kanye ne-glutathione.Ingenza izinhlanganisela ezingancibiliki ngama-ion ensimbi afana ne-Ag+, Hg+, ne-Cu+.i-mercaptide.Okungukuthi, i-RS-M', i-RSM"-SR (M', M" iyinsimbi e-monovalent ne-divalent, ngokulandelana).
Ifomula ye-molecular C3H7NO2S, isisindo samangqamuzana 121.16.Amakristalu angenambala.Incibilika emanzini, i-acetic acid ne-ammonia, ayincibiliki ku-ether, i-acetone, i-ethyl acetate, i-benzene, i-carbon disulfide ne-carbon tetrachloride.Ingafakwa i-oxidized ku-cystine ngomoya kuzixazululo ze-alkaline ezingathathi hlangothi nezibuthakathaka.
Ukusebenza kwe-L-Cysteine 99%:
1. Isetshenziswa kakhulu kwezokwelapha, izimonyo, ucwaningo lwe-biochemical, njll.
2. Isetshenziselwa isinkwa ukukhuthaza ukwakheka kwe-gluten, ukukhuthaza ukuvutshelwa, ukukhululwa kwesikhunta, nokuvimbela ukuguga.
3. Isetshenziswa kumajusi emvelo ukuze kuvinjwe i-oxidation kavithamini C futhi kuvimbele ijusi ukuthi ingansundu.Lo mkhiqizo unomphumela wokuqeda ubuthi futhi ungasetshenziselwa ubuthi be-acrylonitrile kanye nobuthi be-asidi enamakha.
4. Lo mkhiqizo uphinde ube nomthelela wokuvimbela ukulimala kwemisebe emzimbeni womuntu, futhi uwumuthi wokwelapha i-bronchitis, ikakhulukazi njengomuthi oqeda i-phlegm (osetshenziswa kakhulu njenge-acetyl L-cysteine methyl ester. Izimonyo zisetshenziselwa ikakhulukazi ubuhle Amanzi, i-perm lotion, ukhilimu we-sunscreen, njll.
Izinkomba zobuchwepheshe ze-L-Cysteine 99%:
| Uhlaziyo Into | Ukucaciswa |
| Ukubukeka | Amakristalu amhlophe powder noma i-crystalline powder |
| Ukuhlonza | I-spectrum yokumuncwa kwe-infrared |
| Ukuzungezisa okuqondile[a]D20° | +8.3°~+9.5° |
| Isimo sesixazululo | ≥95.0% |
| I-Ammonium (NH4) | ≤0.02% |
| I-Chloride (Cl) | ≤0.1% |
| I-Sulfate (SO4) | ≤0.030% |
| Insimbi (Fe) | ≤10ppm |
| Izinsimbi ezisindayo (Pb) | ≤10ppm |
| I-Arsenic | ≤1ppm |
| Ukulahlekelwa ekomisweni | ≤0.5% |
| Izinsalela ekushiseni | ≤0.1% |
| Isivivinyo | 98.0~101.0% |
| PH | 4.5~5.5 |
