ɑ-Cyano-4-hydroxycinnamic acid ≥99,0% (durch HPLC) Matrixsubstanz für MALDI-MS, Supelco®
Lieferant: Merck
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Achtung
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Synonyme:
2-Cyano-3-(4-hydroxyphenyl)acrylic Acid, α-Cyano-4-hydroxycinnamic Acid, α-CHCA, CHCA
70990-1G-F
70990-1G-FEA
95.2
EUR
70990-1G-F
ɑ-Cyano-4-hydroxycinnamic acid ≥99,0% (durch HPLC) Matrixsubstanz für MALDI-MS, Supelco®
alpha-Cyano-4-hydroxycinnamic acid
α-Cyano-4-hydroxycinnamic acid (α-CHCA) is widely used as a matrix in order to facilitate ionization of peptides and proteins in a matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) mass spectrometer.
α-CHCA was used as matrix in improving the detection of low concentration protein digests on MALDI-TOF.
Formel:
C₁₀H₇NO₃ Molecular Weight: 189,17 g/mol Schmelzpunkt: 245…250 °C (Lit.) |
MDL:
MFCD00004204 CAS-Nummer: 28166-41-8 |
Spezifikation Testergebnisse
Appearance (Color) | Faint Yellow to Yellow |
Appearance (Form) | Powder or Crystals |
Titration (T) NaOH 0.1M | 99.0 - 101.0 % |
Purity (HPLC area %) | ≥ 99.0 % |
Melting Point | 245 - 250 C |
Solubility (Color) | Colorless to Faint Green-Yellow |
Solubility (Turbidity) | Clear |
Solubility (Method) | 0.1G IN 10 ml methanol |
Proton NMR Spectrum | Conforms to structure |
Test by UV Spectroscopy | Corresponds to requirements |
Metal trace Analysis (ICP) | Corresponds to requirements |
BARIUM (ICP) | ≤ 5 mg/kg |
CALCIUM (ICP) | ≤ 10 mg/kg |
CADMIUM (ICP) | ≤ 5 mg/kg |
COBALT (ICP) | ≤ 5 mg/kg |
CHROMIUM (ICP) | ≤ 5 mg/kg |
COPPER (ICP) | ≤ 5 mg/kg |
POTASSIUM (ICP) | ≤ 5 mg/kg |
MAGNESIUM (ICP) | ≤ 5 mg/kg |
MANGANESE (ICP) | ≤ 5 mg/kg |
SODIUM (ICP) | ≤ 10 mg/kg |
NICKEL (ICP) | ≤ 5 mg/kg |
LEAD (ICP) | ≤ 5 mg/kg |
ZINC (ICP) | ≤ 5 mg/kg |
RECOMMENDED RETEST PERIOD | 42 MONTHS |
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