- 熔点 :
- 220 °C (dec.)(lit.)
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- 比旋光度 :
- 8.75 º (c=12, 2N HCl)
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- 沸点 :
- 293.9±35.0 °C(Predicted)
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- 密度 :
- 1.197 (estimate)
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- FEMA :
- 3263 | L-CYSTEINE
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- 折射率 :
- 8.8 ° (C=8, 1mol/L HCl)
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- 储存条件 :
- Store at RT.
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- 溶解度 :
- H2O: 25 mg/mL
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- 酸度系数(pKa):
- 1.92(at 25℃)
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- 形态:
- Solid
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- 颜色:
- White
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- PH值:
- 4.5-5.5 (100g/l, H2O, 20℃)
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- 旋光性 (optical activity):
- Optical rotation: +8° to +9° (c = 5, 1 N HCl, 20°C).
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- 水溶解性 :
- 280 g/L (25 ºC)
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- 敏感性 :
- Air Sensitive
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- 最大波长(λmax):
- λ: 260 nm Amax: 1.5λ: 280 nm Amax: 0.2
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- JECFA Number:
- 1419
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- Merck :
- 14,2781
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- BRN :
- 1721408
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- 稳定性:
- Stability Stable, but may be air sensitive. Incompatible with oxidizing agents, bases.
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- CAS 数据库:
- 52-90-4(CAS DataBase Reference)
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- NIST化学物质信息:
- L-Cysteine(52-90-4)
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- EPA化学物质信息:
- L-Cysteine (52-90-4)
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