L-Cysteine 99% | 52-90-4
Mafotokozedwe Akatundu:
L-cysteine, amino acid yomwe imapezeka m'zamoyo. Ndi imodzi mwa sulfure yomwe ili ndi α-amino acid. Zimasanduka zofiirira (zofiira chifukwa cha SH) pamaso pa nitroprusside. Imapezeka m'mapuloteni ambiri ndi glutathione. Ikhoza kupanga mankhwala osasungunuka ndi ayoni achitsulo monga Ag+, Hg+, ndi Cu+. mercaptide. Ndiko kuti, RS-M', RSM"-SR (M', M" ndi zitsulo monovalent ndi divalent, motero).
Molecular formula C3H7NO2S, molekyulu yolemera 121.16. Makhiristo opanda mtundu. Amasungunuka m'madzi, acetic acid ndi ammonia, osasungunuka mu ether, acetone, ethyl acetate, benzene, carbon disulfide ndi carbon tetrachloride. Itha kukhala oxidized ku cystine ndi mpweya munjira zopanda ndale komanso zofooka zamchere.
Kuchita bwino kwa L-Cysteine 99%:
1. Amagwiritsidwa ntchito makamaka mu mankhwala, zodzoladzola, kafukufuku wa zamankhwala am'thupi, etc.
2. Amagwiritsidwa ntchito mu mkate kulimbikitsa mapangidwe a gilateni, kulimbikitsa kuyanika, kutulutsa nkhungu, ndi kuteteza kukalamba.
3. Amagwiritsidwa ntchito mu timadziti tachilengedwe kuti ateteze makutidwe ndi okosijeni a vitamini C ndikuletsa madzi kuti asakanike. Izi mankhwala ali detoxification kwenikweni angagwiritsidwe ntchito poyizoni acrylonitrile ndi onunkhira asidi poyizoni.
4. Mankhwalawa amakhalanso ndi zotsatira zoletsa kuwonongeka kwa ma radiation m'thupi la munthu, komanso ndi mankhwala ochizira matenda a bronchitis, makamaka ngati mankhwala ochotsera phlegm (omwe amagwiritsidwa ntchito kwambiri ngati acetyl L-cysteine methyl ester. Zodzoladzola amagwiritsidwa ntchito makamaka kukongola Madzi, perm lotion, sunscreen cream, etc.
Zizindikiro zaukadaulo za L-Cysteine 99%:
Analysis Chinthu Kufotokozera
Maonekedwe White makhiristo ufa kapena crystalline ufa
Identification Infrared mayamwidwe sipekitiramu
Kuzungulira kwachindunji[a]D20° +8.3°~+9.5°
Njira yothetsera ≥95.0%
Ammonium (NH4) ≤0.02%
Chloride (Cl) ≤0.1%
Sulfate (SO4) ≤0.030%
Chitsulo (Fe) ≤10ppm
Zitsulo zolemera (Pb) ≤10ppm
Arsenic ≤1ppm
Kutaya pakuyanika ≤0.5%
Zotsalira pakuyatsa ≤0.1%
Kuyesa 98.0-101.0%
PH 4.5-5.5
