73594

Ammonium acetate

LiChropur^™, eluent additive for LC-MS

• Linear Formula: CH₃CO₂NH₄
• CAS Number: 631-61-8
• Molecular Weight: 77.08
• Beilstein: 4186741
• EC Number: 211-162-9
• MDL number: MFCD00013066
• eCl@ss: 39021908
• PubChem Substance ID: 329765068
• NACRES: NB.21

Properties

• grade: eluent additive for LC-MS
• Quality Level: 100
• assay: ≥99.0% (calc. on dry substance, T)
• form: solid
• quality: LiChropur^™
• technique(s): LC/MS: suitable
• impurities: insoluble matter, passes filter test; ≤1% water
• ign. residue: ≤0.01% (as SO₄)
• pH: 6.2-7.5 (25 °C, 1 M in H₂O)
• mp: 110-112 °C (dec.) (lit.)
• solubility: H₂O: 1 M at 20 °C, clear, colorless
• anion traces: chloride (Cl^-): ≤5 mg/kg; nitrate (NO₃^-): ≤10 mg/kg; sulfate (SO₄^2-): ≤10 mg/kg
• cation traces: Al: ≤1 mg/kg; As: ≤0.1 mg/kg; Ba: ≤1 mg/kg; Bi: ≤1 mg/kg; Ca: ≤5 mg/kg; Cd: ≤1 mg/kg; Co: ≤1 mg/kg; Cr: ≤1 mg/kg; Cu: ≤1 mg/kg; Fe: ≤1 mg/kg; K: ≤5 mg/kg; Li: ≤1 mg/kg; Mg: ≤1 mg/kg; Mn: ≤1 mg/kg; Mo: ≤1 mg/kg; Na: ≤5 mg/kg; Ni: ≤1 mg/kg; Pb: ≤1 mg/kg; Sr: ≤1 mg/kg; Zn: ≤1 mg/kg
• λ: 1 M in H₂O
• UV absorption: λ: 260 nm A_max: ≤0.015; λ: 280 nm A_max: ≤0.010
• suitability: passes test for LC-MS
• SMILES string: N.CC(O)=O
• InChI: 1S/C2H4O2.H3N/c1-2(3)4;/h1H3,(H,3,4);1H3
• InChI key: USFZMSVCRYTOJT-UHFFFAOYSA-N

Description

General description

Ammonium acetate exists as a white crystal. It is prepared from acetic acid and ammonia by neutralization to pH 7.0. It is widely used in analytical chemistry, drugs and in textile dyeing.

Application

Ammonium acetate has been used to prepare eluents for UPLC-MS/MS and HPLC-MS/MS to compare the matrix effect of 9 pharmaceutical compounds in aqueous environmental samples. It has also been used as an additive to improve detection of phosphopeptides using MALDI-MS.

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Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves