L-Cysteine 99% |52-90-4
Product Description:
L-cysteine, amino acid inowanzowanikwa mune zvipenyu.Ndiyo imwe yesarufa-ine α-amino acids.Inoshanduka yepepuru (yemavara nekuda kweSH) pamberi pe nitroprusside.Inowanikwa mumapuroteni akawanda uye glutathione.Inogona kugadzira zvisinganyunguriki nesimbi ions seAg+, Hg+, uye Cu+.mercaptide.Ndiko kuti, RS-M', RSM"-SR (M', M" masimbi emonovalent uye divalent, zvichiteerana).
Molecular formula C3H7NO2S, molecular uremu 121.16.Makristasi asina ruvara.Soluble mumvura, acetic acid uye ammonia, isinganyunguriki muether, acetone, ethyl acetate, benzene, carbon disulfide uye carbon tetrachloride.Inogona kuve oxidized kune cystine nemhepo mune kwayakarerekera uye isina simba alkaline mhinduro.
Kushanda kweL-Cysteine 99%:
1. Inonyanya kushandiswa mumishonga, cosmetics, biochemical research, nezvimwe.
2. Inoshandiswa muchingwa kukurudzira kuumbwa kwe gluten, kukurudzira kuvirisa, kusunungurwa kwe mold, nekudzivirira kukwegura.
3. Inoshandiswa mumajisi echisikigo kudzivirira oxidation yevhitamini C uye kudzivirira muto kubva pakusviba.Ichi chigadzirwa chine detoxification mhedzisiro uye chinogona kushandiswa kune acrylonitrile chepfu uye inonhuhwirira acid chepfu.
4. Ichi chigadzirwa chinewo mhedzisiro yekudzivirira kukuvadzwa kwemwaranzi kumuviri wemunhu, uye zvakare mushonga wekurapa bronchitis, kunyanya semushonga unobvisa phlegm (inonyanya kushandiswa muchimiro cheacetyl L-cysteine methyl ester. Cosmetics. anonyanya kushandiswa kunaka Mvura, perm lotion, sunscreen cream, nezvimwe.
Unyanzvi zviratidzo zveL-Cysteine 99%:
| Analysis Item | Tsanangudzo |
| Chitarisiko | White makristasi hupfu kana crystalline poda |
| Identification | Infrared absorption spectrum |
| Kutenderera chaiko[a]D20° | +8.3°~+9.5° |
| State of solution | ≥95.0% |
| Ammonium (NH4) | ≤0.02% |
| Chloride (Cl) | ≤0.1% |
| Sulfate (SO4) | ≤0.030% |
| Simbi (Fe) | ≤10ppm |
| Heavy metal (Pb) | ≤10ppm |
| Arsenic | ≤1ppm |
| Kurasikirwa pakuomeswa | ≤0.5% |
| Residue pakubatidza | ≤0.1% |
| Assay | 98.0~101.0% |
| PH | 4.5~5.5 |
