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matrix substance for MALDI-MS
InChI Key
DWQOTEPNRWVUDA-CCEZHUSRSA-N
assay
≥99.5% (HPLC)
≥99.5%
mp
204-208 °C(lit.)
204-208 °C
solubility
ethanol: 20 mg/mL clear
cation traces
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤50 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
absorption
absorption/337 nm ≥2000 (mol. absorption)
analyte suitability
glycans
peptides
polymers
proteins
Description:
General description
2-(4-Hydroxyphenylazo)benzoic acid) (HABA), can be used for desorption of proteins, peptides and glycoproteins, thereby making it very advantageous for matrix-assisted laser desorption ionization mass spectrometry.