尿素，Urea；BioXtra, pH 7.5-9.5 (20 °C, 5 M in H2O)

产品线

BioXtra

质量水平

200

测定

99.0-100.5%

形式

powder, crystals or pellets

杂质

≤0.005% Phosphorus (P)
≤0.1% Insoluble matter

灼烧残渣

≤0.1%

pH值（酸碱度）

7.5-9.5 (20 °C, 5 M in H₂O)

mp

132-135 °C (lit.)

溶解性

H₂O: 5 M at 20 °C, clear, colorless

密度

1.335 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl^-): ≤0.05%
sulfate (SO₄^2-): ≤0.05%

痕量阳离子

Al: ≤0.0005%
Ca: ≤0.001%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Mg: ≤0.0005%
NH₄⁺: ≤0.05%
Na: ≤0.005%
Pb: ≤0.001%
Zn: ≤0.0005%

吸光度

≤0.06 at 260 nm at 5 M
≤0.06 at 280 nm at 5 M

application(s)

diagnostic assay manufacturing

SMILES string

NC(N)=O

InChI

1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

Gene Information

human ... CA1(759) , CA2(760)
rat ... Ppm1a(24666)