- 102837
1.02837
L-Cystine
for biochemistry
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质量水平
形式
solid
mp
261-262 °C (decomposition)
溶解性
insoluble 0.19 g/L
密度
1.677 g/cm3 at 20 °C
堆积密度
300 kg/m3
储存温度
2-30°C
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
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This Item | PHR1323 | 1161586 | C3300000 |
|---|---|---|---|
| form solid | form - | form - | form - |
| mp 261-262 °C (decomposition) | mp >240 °C (dec.) (lit.) | mp >240 °C (dec.) (lit.) | mp >240 °C (dec.) (lit.) |
| solubility insoluble 0.19 g/L | solubility - | solubility - | solubility - |
| storage temp. 2-30°C | storage temp. 2-30°C | storage temp. 2-8°C | storage temp. - |
| Quality Level 100 | Quality Level 300 | Quality Level - | Quality Level - |
| density 1.677 g/cm3 at 20 °C | density - | density - | density - |
分析说明
Identity (IR-spectrum): passes test
Appearance: white to almost white, fine-crystalline powder
Appearance of solution (0.2 mol/l, hydrochloric acid 1 mol/l): clear and colorless
Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance): -220.0 to - 225.0
Chloride (Cl): ≤ 0.02 %
Sulfate (SO₄): ≤ 0.05 %
Heavy metals (as Pb): ≤ 0.001 %
As (Arsenic): ≤ 0.0005 %
Ca (Calcium): ≤ 0.001 %
Co (Cobalt): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.0005 %
Mg (Magnesium): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
Zn (Zinc): ≤ 0.0005 %
NH₄ (Ammonium): ≤ 0.01 %
Foreign amino acids: ≤ 0.3 %
Other ninhydrine positive substances: ≤ 0.3 %
Loss on drying (105 °C; 3 h): ≤ 0.3 %
储存分类代码
11 - Combustible Solids
WGK
WGK 1
闪点(F)
Not applicable
闪点(C)
Not applicable
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