尿素

製品名

尿素, BioUltra, Molecular Biology, 99% (T)

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

InChI

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

SMILES string

NC(N)=O

grade

Molecular Biology

product line

BioUltra

assay

99% (T)

form

powder or crystals

impurities

DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected
≤0.1% biuret
<0.005% formaldehyde (HCHO)

ign. residue

≤0.01% (as SO₄)

loss

≤0.1% loss on drying, 20 °C (HV)

pH

8.0-10.0 (20 °C, 8 M in H₂O)

mp

132-135 °C (lit.)

solubility

H₂O: 8 M at 20 °C, clear, colorless

density

1.335 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤5 mg/kg
sulfate (SO₄^2-): ≤10 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

8 M in H₂O

UV absorption

λ: 260 nm A_max: ≤0.03
λ: 280 nm A_max: ≤0.02

Quality Level

200

Gene Information

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