尿素

BioXtra

200

98.5-101.5%

powder, crystals or pellets

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

≤0.1%

7.5-9.5 (20 °C, 5 M in H₂O)

132-135 °C (lit.)

H₂O: 5 M at 20 °C, clear, colorless

1.335 g/mL at 25 °C (lit.)

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

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%

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

diagnostic assay manufacturing

NC(N)=O

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

XSQUKJJJFZCRTK-UHFFFAOYSA-N

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