trihydrogen bis[3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-4-hydroxybenzene-1-sulphonato(3-)]chromate(3-), compound with N,N'-bis-o-tolylguanidine (1:3)
CAS No. 85099-44-1