2-(4-Hydroxyphenylazo)benzoic acid
SIAL/54793 - matrix substance for MALDI-MS, ≥99.5%
Synonym: 2-(4′-Hydroxybenzeneazo)benzoic acid; 4′-Hydroxyazobenzene-2-carboxylic acid; HABA; HBABA
CAS Number: 1634-82-8
Empirical Formula (Hill Notation): C13H10N2O3
Molecular Weight: 242.23
EC Number: 216-655-2
MDL Number: MFCD00002428
Linear Formula: HOC6H4N=NC6H4CO2H
Product Type: Chemical
absorption | ≥2000 at 337 nm (mol. absorption) |
analyte chemical class(es) | glycans, peptides, proteins |
analyte functional class(es) | polymers |
assay | ≥99.5% |
≥99.5% (HPLC) | |
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 | |
grade | matrix substance for MALDI-MS |
InChI | 1S/C13H10N2O3/c16-10-7-5- |
InChI key | DWQOTEPNRWVUDA-CCEZHUSRSA |
mp | 204-208 °C |
204-208 °C (lit.) | |
Quality Level | 100 ![]() |
SMILES string | Oc1ccc(cc1)N=Nc2ccccc2C |
solubility | ethanol: 20 mg/mL, clear |
technique(s) | MALDI-MS: suitable |
General description: | 2-(4-Hydroxyphenylazo)ben |
Hazard Codes | Xi |
Risk Statements | 36/37/38 |
Safety Statements | 26-36 |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 3 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥99.5% (HPLC); ≥99.5% |
mp | 204-208 °C (lit.); 204-208 °C |
UNSPSC | 12000000 |