1.02839
L-システイン 塩酸塩 一水和物
for biochemistry
別名:
Cys, L-Cysteinium Chloride Monohydrate, L-Cysteine Hydrochloride, Monohydrate
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この商品について
vapor pressure
<0.1 hPa ( 20 °C)
Quality Level
assay
98.5-101.0% dry basis (alkalimetric)
form
crystalline powder
pH
0.8-1.2 (20 °C, 100 g/L in H2O)
mp
168-170 °C
solubility
650 g/L
density
1.54 g/cm3
bulk density
780 kg/m3
anion traces
sulfate (SO42-): ≤300 ppm
cation traces
Fe: ≤20 ppm, heavy metals (as Pb): ≤10 ppm
storage temp.
2-30°C
SMILES string
O.Cl.N[C@@H](CS)C(O)=O
InChI
1S/C3H7NO2S.ClH.H2O/c4-2(1-7)3(5)6;;/h2,7H,1,4H2,(H,5,6);1H;1H2/t2-;;/m0../s1
InChI key
QIJRTFXNRTXDIP-JIZZDEOASA-N
Application
- Smartphone-based Ellman′s colourimetric methods for the analysis of d-penicillamine formulation and thiolated polymer: Demonstrates the application of L-Cysteine hydrochloride monohydrate in developing colorimetric assays for pharmaceutical analysis, enhancing the accessibility and cost-effectiveness of drug quality control (Phadungcharoen et al., 2019).
- The effects of the thiolation with thioglycolic acid and l-cysteine on the mucoadhesion properties of the starch-graft-poly(acrylic acid): Focuses on the modification of polymers with L-Cysteine hydrochloride monohydrate to improve their mucoadhesive properties, which is critical for developing more effective drug delivery systems (Gök et al., 2017).
- On-line pre-reduction of pentavalent arsenicals by thioglycolic acid for speciation analysis by selective hydride generation-cryotrapping-atomic absorption spectrometry: Utilizes L-Cysteine hydrochloride monohydrate in analytical chemistry techniques to improve the detection and measurement of toxic elements in environmental samples, crucial for monitoring and ensuring public health (Musil et al., 2008).
Biochem/physiol Actions
Analysis Note
Identity (IR-spectrum): passes test
Identity (Chloride): passes test
Appearance: white or almost white, crystalline powder or colorless crystals
Appearance of solution (25 g/l, water): clear and not more intense in color than reference solution BY6
Spec. rotation (α 20/D, 80 g/l, hydrochloric acid 250 g/l, calc. on dried substance): +5.5 to +7.0
Spec. rotation (α 25/D, 80 g/l, hydrochloric acid 6 mol/l, calc. on dried substance): +5.7 to +6.8
Sulfate (SO₄): ≤ 300 ppm
Heavy metals (as Pb): ≤ 10 ppm
Fe (Iron): ≤ 20 ppm
Related Compounds, total (TLC): ≤ 0.5 %
Ninhydrin-positive substances (LC)(impurity A (570 nm)): ≤ 0.5 %
Ninhydrin-positive substances (LC)(any ninhydrin-positive impurity): ≤ 0.2 %
Ninhydrin-positive substances (LC) (ammonium (570 nm)): ≤ 0.02 %
Ninhydrin-positive substances (LC)(total impurities): ≤ 1.0 %
Residual solvents (ICH Q3C): excluded by manufacturing process
Sulfated ash (600 °C): ≤ 0.1 %
Loss on drying (Vacuum < 0.7 kPa, P₂O₅, 24 h): 8.0 - 12.0 %
Bacterial endotoxins: ≤ 6.0 I.U./g
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保管分類
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
適用法令
試験研究用途を考慮した関連法令を主に挙げております。化学物質以外については、一部の情報のみ提供しています。 製品を安全かつ合法的に使用することは、使用者の義務です。最新情報により修正される場合があります。WEBの反映には時間を要することがあるため、適宜SDSをご参照ください。
1028390025: + 1028399010: + 1028391000: + IN21028390025: + 1028390100: + 1028390000:
jan
試験成績書（COA）
製品のロット番号またはバッチ番号を入力して、分析証明書（COA）を検索してください。ロット番号およびバッチ番号は、製品のラベル上の「Lot」または「Batch」という表記の後に記載されています。