货号 | 名称 | 规格 | 包装 | 单价(元) | 优惠(元) | 库存 | 数量 | 操作 |
---|---|---|---|---|---|---|---|---|
R529479 | L-精氨酸盐酸盐 | BR | 25g | ¥ 56.00 | ¥ 56 | >10 | -+ | 加入购物车 |
R112138 | L-精氨酸盐酸盐 | BR | 100g | ¥ 85.00 | ¥ 85 | >10 | -+ | 加入购物车 |
R496202 | L-精氨酸盐酸盐 | BR | 500g | ¥ 378.00 | ¥ 378 | >10 | -+ | 加入购物车 |
R704212 | L-精氨酸盐酸盐 | EP, JP, USP 级,≥98.5%,用于细胞培养 | 100g | ¥ 220.00 | ¥ 220 | >10 | -+ | 加入购物车 |
R352846 | L-精氨酸盐酸盐 | EP, JP, USP 级,≥98.5%,用于细胞培养 | 500g | ¥ 1075.00 | ¥ 1075 | >10 | -+ | 加入购物车 |
白色或近白色几乎无臭结晶性粉末。
约于235℃熔化并分解。干燥状态下稳定。
3%水溶液的pH值约5.7。
易溶于水(90%,25℃)。
微溶于热乙醇,不溶于乙醚。
外观Appearance 白色结晶粉末或结晶 |
红外光谱鉴别Infrared spectrometry 和对照品匹配 |
纯度Purity >98.0% |
干燥损失Loss on drying <0.2 % (105°C, 3 小时) |
重金属Heavy metals (as Pb) <10 ppm |
硫酸盐灰分Sulfated ash <0.1 % |
pH 4.7 - 6.2 (2.5% 溶液, 25°C) |
其它氨基酸Other amino acids <0.5 % (TLC) |
比旋度Specific rotation [a]20/D +21.4° - +23.6°(c=8, 6 N HCl) |
痕量分析Trace analysis : |
SO4 < 300 ppm |
NH4 < 200 ppm |
Fe < 10 ppm |
透光度Transmittance >95 % (c=10, H2O, 430 nm) 1 cm cell |
品级Grade 药典级,非合成,用于细胞培养 |
(EP, JP, USP,not synthetic for cell culture) |
来源origin non-animal source |
appearance white crystalline powder |
identification by ir conforms to structure |
solubility clear colorless solution at 1.0g to 10ml of water |
Specific rotation [a]20/D +22.1 to +22.9 ° |
* c = 8 in 6m hydrochloric acid |
chloride 16.58 to 17.00% |
ammonium ≤ 0.02% |
sulfate ≤0.020% |
iron ≤ 10 ppm |
heavy metals ≤ 10 ppm |
arsenic ≤ 1 ppm |
loss on drying ≤ 0.20% |
residue on ignition ≤ 0.10% |
residual solvents meets the requirements |
ninhydrin-positive substances (other amino acids) conforms |
ph test 4.7 to 6.2 (1.0g in 10ml water) |
assay (dry basis) 98.5 to 101.0% |
endotoxin assay ≤ 1 eu/mg |
cell culture test pass |
note meets usp, ep and jp testing specifica tions |
品级Grade 超纯级 |
(Ultra pure >99% (HPLC)) |
外观Appearance 白色粉末 |
红外光谱鉴别Infrared spectrometry Conforms to Structure |
纯度Purity ≥99% (HPLC) |
磷酸Phosphorus (P) <0.0005% |
不溶物Insoluble matter <0.1% |
灼烧残渣residue on ignition <0.1% |
pH 5.0-7.0 (20 °C, 1 M in H2O) |
水溶性solubility H2O: soluble1 M at 20 °C, clear, colorless |
硫酸根sulfate (SO42-): <0.05% |
Al: <0.0005% |
Ca: <0.0005% |
Cu: <0.0005% |
Fe: <0.0005% |
K: <0.005% |
Mg: <0.0005% |
NH4+: <0.05% |
Na: <0.005% |
Pb: <0.001% |
Zn: <0.0005% |
UV absorption |
A260 (1 m in water) <0.2 |
A280 (1 m in water) <0.1 |
危险品标志 Xi
危险类别码 37-36/38
安全说明 37/39-26-24/25
WGK Germany 2
RTECS CF1995500
F 3-10
海关编码 29252000
密封保存