merck millipore,默克密理博,102838,L-半胱氨酸

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Merck Millipore 默克密理愽

经验配方	CAS号
C₃H₇NO₂S	52-90-4

描述
产品目录编号	102838
同义词	α-Amino-ß-mercapto propionic acid, αlpha-Amino-ß-mercapto propionic acid, Cys, αlpha-Amino-beta-mercapto propionic acid

毒性学信息
LD 50口服	LD50 Rat 1890 mg/kg

GHS安全信息
危害性图示
危害性声明	H302: 吞咽有害。
提示语	警告
RTECS	HA1600000
储存类别	10 - 13 其它液体及固体
WGK	WGK 1 轻度的水危害
一次性	3 反应性相对较低的有机物必须被收集在第A类, 如果被卤化则在第B类, 如果为固体残留物则归在第C类.

规格
规格
Assay (perchloric acid titration, calculated on dried substance)	≥ 99.0
Identity (IR-spectrum)	passes test
Appearance	colorless to white, needle-shaped crystals
Appearance of solution (100 g/l, hydrochloric acid 2 mol/l)	clear and colorless
Spec. rotation (α 20/D, 80 g/l, hydrochloric acid 1 mol/l, calc. on dried substance)	+8.3 to +9.5
pH (25 g/l; CO₂-free water)	4.5 - 5.5
Chloride (Cl)	≤ 0.04 %
Sulphate (SO₄)	≤ 0.03 %
Heavy metals (as Pb)	≤ 0.001 %
As (Arsenic)	≤ 0.0001 %
Ca (Calcium)	≤ 0.001 %
Co (Cobalt)	≤ 0.0005 %
Fe (Iron)	≤ 0.0010 %
K (Potassium)	≤ 0.0005 %
Mg (Magnesium)	≤ 0.0005 %
Na (Sodium)	≤ 0.01 %
NH₄ (Ammonium)	≤ 0.02 %
Zn (Zinc)	≤ 0.0005 %
Foreign amino acids	≤ 0.5 %
Other ninhydrine positive substances	≤ 0.1 %
Loss on drying (105 °C; 3 h)	≤ 0.5 %

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