sodium dihydrate dihydrogen phosphate

• ChemBase ID: 156054
• Molecular Formular: H6NaO6P
• Molecular Mass: 156.007571
• Monoisotopic Mass: 155.97996882
• SMILES: O.O.OP(=O)(O)[O-].[Na+]
• Canonical SMILES: [O-]P(=O)(O)O.O.O.[Na+]
• InChI: InChI=1S/Na.H3O4P.2H2O/c;1-5(2,3)4;;/h;(H3,1,2,3,4);2*1H2/q+1;;;/p-1
• InChIKey: VBJGJHBYWREJQD-UHFFFAOYSA-M

NAMES AND DATABASE IDS

Names

• IUPAC name: sodium dihydrate dihydrogen phosphate
• IUPAC Traditional name: sodium dihydrate dihydrogen phosphate
• Synonyms: Sodium dihydrogen phosphate dihydrate; Sodium phosphate monobasic dihydrate; 磷酸二氢钠 二水合物; 一盐基磷酸钠 二水合物

Database IDs

• CAS Number: 13472-35-0
• EC Number: 231-449-2
• MDL Number: MFCD00149209
• PubChem SID: 24886209; 162250192; 24845709; 24886206
• PubChem CID: 23673460

CALCULATED PROPERTIES

• Acid pKa: 1.7961261
• H Acceptors: 4
• H Donor: 2
• LogD (pH = 5.5): -3.3916447
• LogD (pH = 7.4): -3.9718332
• Log P: -1.0201038
• Molar Refractivity: 13.5302 cm^3
• Polarizability: 5.806723 Å^3
• Polar Surface Area: 80.59 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: H2O: soluble1 M at 20 °C, clear, colorless; H2O: soluble50 mg/mL, clear, colorless
• Absorption Wavelength: λ: 260 nm Amax: 0.085; λ: 280 nm Amax: 0.070
• pH: 4.0-4.5 (25 °C, 1 M in H2O); 4.0-4.5 (25 °C, 50 mg/mL in H2O); 4.1-5.0 (20 °C, 1%); 4.2-4.5 (20 °C, 5%)

Safety Information

• RTECS: WA1900500
• German water hazard class: 1
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter

Product Information

• Purity: ≥98.0%; ≥99.0% (T); 98-100.5% (calc. to the dried substance); 99.0-102.0%
• Grade: for molecular biology; JIS special grade; purum p.a.; SAJ first grade
• Suitability: complies for appearance of solution
• Impurities: ≤0.2% water-insoluble matter; DNases, none detected; heavy metals (as Pb), complies; insoluble matter, passes filter test; organic volatile impurities, complies; phosphatases, none detected; proteases, none detected; reducing matter, complies; related substances, complies; residual solvents, complies; RNases, none detected
• Cation Traces: Al: ≤5 mg/kg; Al:, in accordance; As: ≤0.2 mg/kg; As: ≤2 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 mg/kg; Ca: ≤20 mg/kg; Ca: ≤50 mg/kg; Ca:, in accordance; Cd: ≤1 mg/kg; Cd: ≤5 mg/kg; Cd: ≤50 mg/kg; Co: ≤5 mg/kg; Co: ≤50 mg/kg; Cr: ≤5 mg/kg; Cu: ≤10 mg/kg; Cu: ≤5 mg/kg; Cu: ≤50 mg/kg; Fe: ≤5 mg/kg; Fe: ≤50 mg/kg; Hg: ≤1 mg/kg; K: ≤100 mg/kg; K: ≤200 mg/kg; Li: ≤5 mg/kg; Mg: ≤20 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Ni: ≤5 mg/kg; Ni: ≤50 mg/kg; Pb: ≤4 mg/kg; Pb: ≤5 mg/kg; Pb: ≤50 mg/kg; Sr: ≤5 mg/kg; Zn: ≤10 mg/kg; Zn: ≤5 mg/kg; Zn: ≤50 mg/kg
• Antion Traces: chloride (Cl-): ≤50 mg/kg; fluoride (F-): ≤10 mg/kg; sulfate (SO42-): ≤200 mg/kg; sulfate (SO42-): ≤50 mg/kg
• Loss on Drying: 21.5-24.0% loss on drying, 130 °C
• Quality Level: PREMIUM
• Quality: crystallized; meets analytical specification of Ph. Eur., BP, USP, FCC, E 339
• λ: 1 M in H2O
• Product Line: BioUltra
• Linear Formula: NaH2PO4 · 2H2O

DETAILS

Sigma Aldrich - 71505

Other Notes
Gel electrophoresis - running buffer component for denaturing gels containing formamide1