Bio-Rad Laboratories, Inc. SpectraBase; SpectraBase Compound ID=5VItSDnV1KH
http://spectrabase.com/compound/5VItSDnV1KH (accessed Apr 22, 2018).

3-methyl-1-(m-nitrophenyl)-4-(phenylazo)-2-pyrazolin-5-one
SpectraBase Compound ID 5VItSDnV1KH
InChI InChI=1S/C16H13N5O3/c1-11-15(18-17-12-6-3-2-4-7-12)16(22)20(19-11)13-8-5-9-14(10-13)21(23)24/h2-10,15H,1H3/b18-17+
InChIKey QXCXQWSWNORGOT-ISLYRVAYSA-N
Mol Weight 323.31 g/mol
Molecular Formula C16H13N5O3
Exact Mass 323.101839 g/mol