26.2
[]. Nada S Abdelwahab, et al. Validated chromatographic methods for simultaneous determination of tolfenamic acid and its major impurities. J Chromatogr Sci. 25 Apr;53(4):484-9.
H32-H34-H334-H4
P26-P26-P264-P27-P273-P28-P284-P3+P33+P33-P34+P34-P33-P363-P39-P45-P5
GHS5,GHS7,GHS8
6.