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L-Asparagine Monohydrate

品牌
Millipore
CAS
5794-13-8
货号
1.01566
规格纯度
for biochemistry
参考价格
655.73 *本价格含增值税费
促销
数量
-+
产品介绍:

产品说明

分析说明

Assay (perchloric acid titration, calculated on dried substance): 99.0 - 101.0 %
Identity (IR-spectrum): passes test
Identity (specific rotation): passes test
Appearance: white to almost white crystalline powder or colorless crystals
Appearance of solution (20 g/l, CO₂-free water): clear and colorless
Spec. rotation (α 20/D, 100 g/l, hydrochloric acid 3 mol/l, calc. on dried substance): +33.7 to +36.0
Chloride (Cl): ≤ 200 ppm
Sulfate (SO₄): ≤ 200 ppm
As (Arsenic): ≤ 5 ppm
Ca (Calcium): ≤ 10 ppm
Co (Cobalt): ≤ 5 ppm
Fe (Iron): ≤ 5 ppm
K (Potassium): ≤ 5 ppm
Mg (Magnesium): ≤ 5 ppm
Na (Sodium): ≤ 50 ppm
Pb (Lead): ≤ 10 ppm
Zn (Zinc): ≤ 5 ppm
Ninhydrin-positive substances (LC)(Aspartic acid): ≤ 0.5 %
Ninhydrin-positive substances (LC)(any other ninhydrin-positive impurity): ≤ 0.3 %
Ninhydrin-positive substances (LC) (ammonium (570 nm)): ≤ 0.02 %
Ninhydrin-positive substances (LC)(total impurities): ≤ 0.8 %
Loss on drying (130 °C, 3 h): 10.5 - 12.5 %

基本信息

经验(实验)分子式C4H8N2O3 · xH2O
分子量132.12 (anhydrous basis)
MDL编号MFCD00151038
EC索引号200-735-9

产品性质

质量水平100
pH值(酸碱度)4.0-5.5 (20 ℃, 20 g/L in H2O)
mp215-217 ℃ (decomposes)
溶解性 22 g/L
堆积密度530 kg/m3
储存温度2-30℃
InChI1S/C4H8N2O3.H2O/c5-2(4(8)9)1-3(6)7;/h2H,1,5H2,(H2,6,7)(H,8,9);1H2/t2-;/m0./s1
InChI keyRBMGJIZCEWRQES-DKWTVANSSA-N

安全信息

储存分类代码11 - Combustible Solids
WGKWGK 1
闪点(F)Not applicable
闪点(C)Not applicable

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