产品名称
L -胱氨酸, ≥99.7% (TLC)
Quality Level
assay
≥99.7% (TLC)
form
powder or crystals
optical activity
[α]20/D −219±5°, c = 1% in 1 M HCl
ign. residue
≤0.1% (as SO4)
loss
≤0.1% loss on drying
color
white
mp
>240 °C (dec.) (lit.)
solubility
1 M HCl: 0.5 g/10 mL, clear, colorless
anion traces
chloride (Cl-): ≤500 mg/kg, sulfate (SO42-): ≤100 mg/kg
cation traces
Ca: ≤50 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤6 mg/kg, Fe: ≤10 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤150 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg
application(s)
peptide synthesis
SMILES string
N[C@@H](CSSC[C@H](N)C(O)=O)C(O)=O
InChI
1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m0/s1
InChI key
LEVWYRKDKASIDU-IMJSIDKUSA-N
Application
L-胱氨酸已被用于制备原液,该原液又通过光谱荧光流动注射法用于测定药物制剂以及尿液样品中的L-半胱氨酸和L-胱氨酸。
Biochem/physiol Actions
胱氨酸是合成保护细胞免受氧化应激的谷胱甘肽所必需的。一种特殊的 x (c)-半胱氨酸/谷氨酸反向转运蛋白可介导细胞摄取半胱氨酸以交换谷氨酸。半胱氨酸摄取抑制诱导神经元细胞毒性。
Other Notes
用于 N,N′-二苯甲酰基-L-胱氨酸的制备,酮不对称还原的高效辅助剂
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存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
K. Soai et al.
Journal of the Chemical Society. Chemical Communications, 413-413 (1984)
T Pérez-Ruiz et al.
The Analyst, 117(6), 1025-1028 (1992-06-01)
A flow injection configuration is proposed for the determination of L-cysteine and L-cystine individually and for mixtures of both analytes. The procedure is based on the rapid oxidation of L-cysteine by thallium(III) with concomitant formation of fluorescent thallium(I). The inclusion
T H Murphy et al.
Neuron, 2(6), 1547-1558 (1989-06-01)
Glutamate binds to both excitatory neurotransmitter binding sites and a Cl(-)-dependent, quisqualate- and cystine-inhibited transport site on brain neurons. The neuroblastoma-primary retina hybrid cells (N18-RE-105) are susceptible to glutamate-induced cytotoxicity. The Cl(-)-dependent transport site to which glutamate and quisqualate (but
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 30200-100G | 04061826665640 |
| 30200-1G-KC | 04061824069815 |
| 30200-25G | 04061826665657 |
| 30200-500G | 04061826665664 |