1,4-Benzenedisulfonic acid, 2-chloro-5-[4-[5-[1-(4-chloro-2,5-disulfophenyl)-3-ethyl-1,5-dihydro-5-ox o-4H-pyrazol-4-ylidene]-1,3-pentadienyl]-3-ethyl-5-hydroxy-1H-pyrazol- 1-yl]-, tetrapotassium salt

CAS:139487-45-9

Formula:C27H24Cl2N4O14S4.4K