From Bioblast
Description
DTPA (Diethylentriamin-N,N,N',N,N-pentaacetic acid, pentetic acid) is a chelator of transition metals, not cell membrane permeable. general chelates multivalent ions stronger than EDTA; pKa1 = 2.14, pKa2 = 2.38, pKa3 = 4.26 pKa4 = 8.60, pKa5 = 10.53
Abbreviation: DTPA
Description
- CAS: 67-43-6
- Source: EHRENSTORFER GMBH (EHERE13095000) or Sigma Aldrich (D-1133).
- FW: 393.35
- Solubility in H2O: ~ 4,8 g/l at 25 Β°C = 12 mM
- Stability constant: see: [1]:
Metal DTPA EDTA Ca(II) 10.74 10.96 Mg(II) 9.3 8.69 Fe(II) 16.5 14.3 Fe(III) 28.6 25.1 Mn(II) 15.6 14.04 Zn (II) 18.75 16.5
DTPA in O2k-FluoRespirometry
- Final concentration in O2k-chamber: 15 Β΅M
- Stock solution: