Synonym: Monosodium phosphate, Sodium dihydrogen phosphate monohydrate
CAS Number: 10049-21-5
Linear Formula: NaH2PO4 · H2O
Molecular Weight: 137.99
EC Number: 231-449-2
MDL Number: MFCD00149208
PubChem Substance ID: 24886210
Grade: for molecular biology
Product Line: BioXtra
Assay: ≥99.5% (T)
Impurities: DNases, none detected; RNases, none detected; insoluble matter, passes filter test; phosphatases, none detected; proteases, none detected; ≤0.001% total nitrogen (N)
pH: 4.0-4.5 (25 °C, 1 M in H2O)
Solubility: H2O: soluble1 M, clear, colorless
Anion Traces: chloride (Cl-): ≤5 mg/kg; sulfate (SO42-): ≤30 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; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
λ: 1 M in H2O
UV Absorption: λ: 260 nm Amax: ≤0.03; λ: 280 nm Amax: ≤0.02