尿素

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)

Quality Level

200

Gene Information

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

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