Table 1.

Nuclear magnetic resonance of MA51B (p-HBA).

				Literature (Velandia et al., 2002)
	1 H		13 C	1 H	13 C
N°	δ (ppm)a	(Hz) J	δ (ppm) a	δ (ppm)a	δ (ppm)a
1	-	-	176.2	-	167.7
2	-	-	112.3	-	122.0
3/7	8.78	nd	122.1	7.71	132.9
4/6	7.46	nd	119.4	6.68	116.3
5	-	-	150	-	163.5

^a : DMSO-D6